1 00:00:00,820 --> 00:00:03,880 So can you start by saying your name and your position? 2 00:00:04,270 --> 00:00:06,639 Yeah. Hi. My name's Carl Hennigan. 3 00:00:06,640 --> 00:00:11,830 I am professor of evidence based medicine in the Department of Primary Care Health Sciences at the University of Oxford. 4 00:00:12,310 --> 00:00:18,130 I also work as an urgent care general practitioner in the NHS and I do that in evenings and weekend. 5 00:00:18,310 --> 00:00:22,420 Did you say urgent care or sorry? Urgent care. Right, yes. 6 00:00:22,480 --> 00:00:25,510 So in the thought. Yeah. The out-of-hours setting. 7 00:00:25,520 --> 00:00:28,900 Yes. The work that goes on in the evenings and the weekend. Yeah. 8 00:00:29,530 --> 00:00:34,840 Okay. And without telling me your entire life story, because we don't quite have time for that. 9 00:00:34,960 --> 00:00:40,750 Yeah. Can you just talk me through your career to date from where you first got interested in medicine? 10 00:00:40,960 --> 00:00:44,530 Yeah, so I actually studied medicine at the University of Oxford. 11 00:00:44,530 --> 00:00:50,590 I came here in 1994. So coming up for nearly three decades have been at Oxford and stayed there ever since. 12 00:00:51,100 --> 00:00:55,629 And what happened? While I was a medical student, I met a certain chap called David Thacker, 13 00:00:55,630 --> 00:01:00,850 who was the first ever professor of evidence based medicine and the director of the Centre for IBM. 14 00:01:01,360 --> 00:01:05,560 And he had a profound impact on my whole career and what happened next, 15 00:01:05,950 --> 00:01:10,359 just because of the way of thinking about decision making that you can integrate best 16 00:01:10,360 --> 00:01:15,459 available evidence with your clinical experience and expertise and patient values. 17 00:01:15,460 --> 00:01:20,290 You take that together. That's what evidence based medicine is how it informs decision making. 18 00:01:20,740 --> 00:01:28,180 I then went on to train as a general practitioner and then ended up in an academic career pathway that led to me being 19 00:01:28,180 --> 00:01:34,960 appointed as the sort of director of the Centre for Evidence based Medicine and Clinical Reader Knebworth in 2010. 20 00:01:35,380 --> 00:01:38,800 And subsequent to that, I become a professor of evidence based medicine here. 21 00:01:39,340 --> 00:01:45,639 But while that's been going on, I still maintain an active career as a clinician by working as a general practitioner. 22 00:01:45,640 --> 00:01:52,090 And I work in the out-of-hours setting where we do generally visits and urgent care visits, for instance, into care homes. 23 00:01:52,690 --> 00:01:58,450 And I like the out-of-hours because it fits with my sort of chaotic lifestyle. 24 00:01:58,450 --> 00:02:04,840 So I can work it round and it works with my family. And so I tend to work evenings and weekends, and in the daytime I do. 25 00:02:05,110 --> 00:02:11,530 About 50% of my time is research and about 50% of my time is teaching and building capacity and supervising. 26 00:02:11,890 --> 00:02:15,400 Hmm. Very good. So let's just unpack evidence based medicine. 27 00:02:15,580 --> 00:02:20,980 I mean, I think when I first heard of it, I guess for a lot of people, there'd be a kind of moment of surprise. 28 00:02:21,010 --> 00:02:24,909 Yeah. What do you mean? All these years, doctors have been treating us without evidence. 29 00:02:24,910 --> 00:02:30,210 So have it. How did the. The term arise? What was different about evidence? 30 00:02:30,220 --> 00:02:34,330 Yeah. Is everybody think that all of healthcare is built on evidence, 31 00:02:34,330 --> 00:02:39,370 but actually there's been a long history and tradition of so-called quackery in health care. 32 00:02:39,610 --> 00:02:45,130 Everybody wants the silver bullet, the magic bullet to that ails and that cures, if you like. 33 00:02:45,580 --> 00:02:50,350 But it was probably about the late eighties when the concept of evidence based medicine came to the fore. 34 00:02:50,350 --> 00:02:56,790 Because what was happening then is lots of medicine with practised on low quality evidence, all on opinions. 35 00:02:56,800 --> 00:02:58,240 I know what to do best. 36 00:02:58,810 --> 00:03:08,890 And one of the key changes was with the use of high quality evidence, particularly for drugs and vaccines, the use of randomised controlled trials. 37 00:03:09,730 --> 00:03:12,580 Now just to say in the current COVID pandemic, 38 00:03:12,580 --> 00:03:17,110 everybody will understand the impact and you'll probably interview people who've done the recovery trial, 39 00:03:17,650 --> 00:03:20,110 which looked at 13 treatments like dexamethasone. 40 00:03:20,350 --> 00:03:29,560 A large national multi-centre trial provide high quality evidence about decision making, and that's a superb example of evidence based medicine. 41 00:03:29,920 --> 00:03:37,209 But if you go back to the eighties and nineties, there were very few randomised controlled trials that impacted on health care and so there was a huge 42 00:03:37,210 --> 00:03:43,150 growth into can we develop high quality evidence and that was the start of evidence based practice. 43 00:03:43,150 --> 00:03:49,480 And there are an important aspect. How do you determine what is high quality evidence, what are the potential biases, 44 00:03:49,900 --> 00:03:54,750 what are the competing interests in the conflict that might distort the evidence base? 45 00:03:54,760 --> 00:04:03,460 You put all that together. My job is to try and understand how you take the evidence from the bench, if you like, to actual patient care in decisions. 46 00:04:04,150 --> 00:04:10,870 And there's a huge amount of evidence out there. At any one point there's probably about 40,000 randomised controlled trials each year. 47 00:04:11,290 --> 00:04:17,949 There are about 2 million articles index on PubMed, so it's like looking for the needle in the haystack if you like. 48 00:04:17,950 --> 00:04:21,310 What the high quality evidence that impacts on patient care. 49 00:04:22,270 --> 00:04:26,889 Now tell me about systematic review. Yeah. Yeah. So that also came. 50 00:04:26,890 --> 00:04:32,740 So there's a very in about the mid nineties, Oxford was very much at the centre of the development of evidence based medicine. 51 00:04:33,280 --> 00:04:37,790 David Sackett moved from Canada to Oxford to establish the first centre for 52 00:04:37,790 --> 00:04:42,819 IBM in Chalmers was based on the road developed the Cochrane Collaboration, 53 00:04:42,820 --> 00:04:49,180 which started up in North Oxford, actually as a group of about 70 people who were interested in systematic reviews. 54 00:04:50,020 --> 00:04:54,339 And the point about systematic reviews is you really saying, look, when you have a clinical question, 55 00:04:54,340 --> 00:04:58,260 what we don't want you to do is cherry pick the bits of evidence that suit your answers. 56 00:04:58,660 --> 00:05:02,219 You're basically saying, let's collate. All of the evidence at certain level. 57 00:05:02,220 --> 00:05:06,660 So for instance for all the randomised controlled trials and then look at the aggregate effect, 58 00:05:06,660 --> 00:05:13,140 what do they say when we systematically review the evidence and it means you have a clear question, 59 00:05:13,650 --> 00:05:18,299 you try and find all the evidence relevant to that question, you appraise the quality, 60 00:05:18,300 --> 00:05:25,720 what's the high quality and the low quality and then you sympathise it normally with what's called a meta analysis or and we look at that, 61 00:05:25,720 --> 00:05:31,860 it's called a forest plot. And when you do that that generally is the highest level of evidence that informs decision making. 62 00:05:32,820 --> 00:05:39,059 Now one of the key components also of evidence based practice and that's been interested in the COVID pandemic, 63 00:05:39,060 --> 00:05:42,660 is then how do you communicate that to inform decision making? 64 00:05:43,560 --> 00:05:50,850 There's been a big change probably in the three decades I've been involved in medicine from what we call a, you know, a doctor centric viewpoint. 65 00:05:50,850 --> 00:05:54,840 The doctor knows best to actually more of patient centred of medicine. 66 00:05:55,380 --> 00:06:00,060 We want to inform the decisions so that actually you participate in that decision. 67 00:06:00,060 --> 00:06:05,070 May ultimately it's our decision and therefore communicating the better patients. 68 00:06:05,100 --> 00:06:08,940 Yeah, definitely so, yeah. Our decision of patients. I'm a patient myself. 69 00:06:08,940 --> 00:06:10,380 I want to be informed all the time. 70 00:06:10,770 --> 00:06:19,200 So that is about informing the benefits and the harms and coming to a decision about what's the best treatment for you now. 71 00:06:19,560 --> 00:06:26,340 And that's where the patient values come in, because we may look at certain treatments and look at them differently and some people 72 00:06:26,340 --> 00:06:31,740 presenting with the same information will make different views about what to do next. 73 00:06:32,070 --> 00:06:35,220 And that's okay because the key is, have you been fully informed? 74 00:06:35,460 --> 00:06:45,330 Can you inform the decision you're about to make? And that's why I find IBN is fascinating, but actually it's still in its infancy, 75 00:06:46,230 --> 00:06:49,410 much if you go to the departments, they're like physiology and anatomy. 76 00:06:49,410 --> 00:06:55,350 They've been around for hundreds of years. The concept of evidence based medicine is about three decades old, really. 77 00:06:55,830 --> 00:07:03,630 However, over time, people have been coming to these decisions about what type of evidence should we use to inform decisions? 78 00:07:05,020 --> 00:07:15,920 And is. So you've talked about. Randomised controlled trials and obviously systematic reviews that kind of winnow those to get the answer from. 79 00:07:17,210 --> 00:07:20,280 Are there other kinds of evidence? It's not the only one. No, it's not. 80 00:07:20,300 --> 00:07:25,550 So it's a misnomer to think so. The key is it's the best available evidence to answer the question. 81 00:07:26,090 --> 00:07:30,380 So, for instance, we have a whole part of our centre of looked at qualitative research. 82 00:07:30,860 --> 00:07:37,160 You know, it's not just sometimes you might want to ask questions like, why do people not take vaccines as prescribed? 83 00:07:37,310 --> 00:07:41,510 And that's a why question. Well, then you have to go and interview and you have to talk to them like this and go. 84 00:07:42,830 --> 00:07:47,150 Can you talk to me about why you make these decisions, what the barrier is, what a facilitator. 85 00:07:47,420 --> 00:07:54,979 So it means it's appropriate to the question. Sometimes when we look at harms, the only evidence available is observational data, 86 00:07:54,980 --> 00:07:58,480 because you can't intervene when there's some harmful issue at hand. 87 00:07:58,520 --> 00:08:01,070 And the best example of that will be smoking. 88 00:08:01,700 --> 00:08:08,720 The one of the most famous studies ever done in Oxford was Richard Doe study, which was a 50 year cohort of doctors and their smoking habits. 89 00:08:09,350 --> 00:08:12,710 When that was started in the fifties. 80% of doctors smoke. 90 00:08:13,430 --> 00:08:18,830 The idea that 80% of doctors now would be ridiculous, but actually were followed up for 50 years. 91 00:08:19,460 --> 00:08:28,280 And that exposure, if you were a smoker of 20 cigarettes a day, on average, you would live ten years less than somebody with never smoked. 92 00:08:29,330 --> 00:08:33,770 And that was an important finding because it wasn't until the sort of 74 93 00:08:33,770 --> 00:08:38,210 showing when actually warnings came on cigarette packets that this is harmful. 94 00:08:38,750 --> 00:08:45,080 So the key is people say there's only randomised trials and that's all you make decision that's that's incorrect. 95 00:08:45,710 --> 00:08:50,330 It's matching the evidence to the type of question you have at hand. 96 00:08:51,320 --> 00:08:56,810 And then we have other studies like diagnostic studies. So we have to have the evidence base for diagnosis as well. 97 00:08:57,020 --> 00:09:01,550 Is this test accurate? Do they actually pick out those with the disease or not? 98 00:09:01,790 --> 00:09:10,249 And that's incredibly important to do. And people recognise that within the COVID pandemic is we've had this huge amount of testing, 99 00:09:10,250 --> 00:09:18,250 whether it's PCR testing or lateral flow testing, and we ask the questions all the time about the accuracy of these testing. 100 00:09:18,470 --> 00:09:24,740 Do they actually derive benefit? Do they pick out those people truly have COVID or not of be the case? 101 00:09:24,750 --> 00:09:28,730 And then there's another aspect of evidence based practice and even. 102 00:09:28,880 --> 00:09:35,270 Mm hmm. So what were the questions before we got to. Before we had to go with what were the main questions that you were interested in? 103 00:09:35,780 --> 00:09:40,400 We've had a huge amount of questions over time. I mean, if you have to in your centre. 104 00:09:40,730 --> 00:09:43,850 So there's about there's about 25 people in the centre. 105 00:09:44,360 --> 00:09:53,090 We've got about 130 to 140 MSI students who would do a part time evidence based health care program and about 40 students. 106 00:09:54,050 --> 00:09:57,140 So that's why it's had to do a lot of teaching and supervising. 107 00:09:57,140 --> 00:10:04,400 And the questions they bring to me are all with what I call I have a light bulb moment when somebody comes in the room and says, 108 00:10:04,700 --> 00:10:07,999 I have this question, I think, yeah, that's a really interesting, important question. 109 00:10:08,000 --> 00:10:11,480 And if we knew the answer, we'd be able to improve practice tomorrow. 110 00:10:12,290 --> 00:10:16,940 And I think that's the important. There are a lot more uncertainty for new consider in health care. 111 00:10:17,940 --> 00:10:23,599 Then there also the other aspects where we may have done something and there's been harm over time. 112 00:10:23,600 --> 00:10:31,520 So some of the work we've done, I've been approached by patients. We looked into the harms of metal hips or trans vaginal surgical mesh, 113 00:10:31,820 --> 00:10:37,490 and recently a treatment used in the sixties and seventies called Perimeter Earth, which was a hormone pregnancy test. 114 00:10:37,820 --> 00:10:44,990 So we do all that type of work. And then here we do generally work that looks at primary care in the community. 115 00:10:45,290 --> 00:10:51,290 Preventive treatment, those treatments are used and we have a vast array of evidence at any one time. 116 00:10:51,290 --> 00:10:59,900 But we tend to focus on the that the evidence, like the systematic reviews that inform the guidelines, that will change patient care, 117 00:11:00,440 --> 00:11:05,659 where if many people will be in the basic sciences in Oxford, translating, developing vaccines, 118 00:11:05,660 --> 00:11:10,129 developing new drugs and taking them forward into the pipeline, we don't do that. 119 00:11:10,130 --> 00:11:17,959 We do the applied health sciences, if you like, and we're trying to say, right, faced with this evidence, what's the decision going to be now? 120 00:11:17,960 --> 00:11:24,350 And that's and you can think about it because I said there's so many new trials published every year, 40,000. 121 00:11:24,860 --> 00:11:29,479 It's like a it's like a moving wheel, if you like, on the hamster on the wheel. 122 00:11:29,480 --> 00:11:36,380 And the key is what we're always looking to do is if we understood the answer to this, would it actually make a difference to patient care? 123 00:11:36,740 --> 00:11:39,680 And that's communicated to doctors that that's well, 124 00:11:39,680 --> 00:11:46,970 actually so so what happens now is the systematic review will go into guidelines and then you've got places people like nice. 125 00:11:47,480 --> 00:11:55,030 And if you think about it again, Nice has only been in operation since 1999 and so they're only three decades in. 126 00:11:55,280 --> 00:12:00,409 And one of the interesting issues I gave a talk to know within the pandemic about what's next. 127 00:12:00,410 --> 00:12:06,139 And they run into this problem of they've got thousands of guide and pieces of technical information and guide. 128 00:12:06,140 --> 00:12:09,650 And so they've got to keep up to date with new information. 129 00:12:10,880 --> 00:12:19,880 And they struggling with that because how do you maintain this knowledge base and then ultimately inform individuals in practice? 130 00:12:20,270 --> 00:12:28,040 But what we teach about is the idea that you have to pull information towards you when you have a question as a clinician, 131 00:12:28,880 --> 00:12:33,920 and you have to have the skills to be able to find the right evidence and in finding the right evidence to be 132 00:12:33,920 --> 00:12:39,410 able to appraise the quality and understand the effect size to bring that knowledge to patients in front of you. 133 00:12:40,100 --> 00:12:43,970 Some things are ingrained in the system, like what to do in a heart attack. 134 00:12:44,000 --> 00:12:47,870 The evidence is very well established. You no need to question that. 135 00:12:47,870 --> 00:12:54,140 But many areas, as it evolve, like cancer care, people come to me and ask all sorts of questions. 136 00:12:54,260 --> 00:12:58,550 There's the new chemotherapy for breast cancer. What do you think? 137 00:12:59,200 --> 00:13:04,010 And, you know, and the answer is, well, I have to look at the evidence and the story in my mind with evidence. 138 00:13:04,310 --> 00:13:10,560 So what we teach is the skills of how do you access that information in evidence and in accessing it? 139 00:13:10,580 --> 00:13:16,370 How can you pull it towards you and then improve the quality? And that's that's important skills for doctors. 140 00:13:16,370 --> 00:13:24,710 But I think it's been interesting in the COVID pandemic, increasingly, I think the public has an appetite for evidence based practice. 141 00:13:24,860 --> 00:13:28,519 They are increasingly saying, hold on a minute, I'm going to question this. 142 00:13:28,520 --> 00:13:32,890 I want to understand if we're going to intervene in this way, where's the evidence? 143 00:13:32,900 --> 00:13:40,580 And I found that quite invigorating, actually. The public has almost tipped itself into trying to say we want to be evidence based. 144 00:13:41,150 --> 00:13:49,730 Whether that will continue will be interesting to see. But I think there's a bit of a movement from more so the public becoming more and more aware. 145 00:13:50,270 --> 00:13:55,790 And I think they've become more aware because of the Internet. They can go in in a way you couldn't do two decades ago. 146 00:13:56,210 --> 00:13:59,390 Yeah. You couldn't go and say, I'm going to look this help. 147 00:13:59,390 --> 00:14:06,320 I'm going to. And so I think they will increasingly will be knowledgeable patients who prod and push doctors to say, 148 00:14:06,320 --> 00:14:09,740 well, I've been reading a bit of evidence when that happened to me. I think that's fantastic. 149 00:14:10,400 --> 00:14:18,170 But if you have to be now aware and ready for that in modern society, and I think that will continue to evolve over time. 150 00:14:20,130 --> 00:14:28,290 Right. So I think we finally got to COVID. Asking everybody, can you remember where you were or what you were doing when you first heard about it? 151 00:14:29,880 --> 00:14:36,450 Oh, yeah. So I first heard about it in January, you know, and it was then murmurings and it was probably January and February. 152 00:14:36,450 --> 00:14:45,329 And I remember in early February doing two things. I wrote an article for the BMJ opinion about I looked at the excess mortality. 153 00:14:45,330 --> 00:14:53,610 So one of the things is a clinical epidemiologist. We're interested in the data and the numbers and the Office for National Statistics, 154 00:14:53,610 --> 00:15:00,000 which probably everybody is aware of now, produces great data and it produces data on things like deaths. 155 00:15:00,720 --> 00:15:04,560 And he does that every week and it's been doing that for years. And we look at that. 156 00:15:04,920 --> 00:15:09,360 He's interested in excess mortality. And I wrote an article about Where Are We Now? 157 00:15:10,040 --> 00:15:15,930 And, and it was interesting because what was happening in early February, we had what we call normally. 158 00:15:15,960 --> 00:15:20,730 So you have a five year average and you either have in excess or not in excess. 159 00:15:20,730 --> 00:15:25,200 And actually with trend under at that moment in time, we'd had a very mild winter coming in. 160 00:15:25,950 --> 00:15:31,500 And my point was to say, actually, it's what you really look to understand what's going on. 161 00:15:31,530 --> 00:15:36,600 You have objective markers and death is a very is ultimately the objective marker. 162 00:15:37,260 --> 00:15:44,490 Now we can have some arguments about the causation, but ultimately when a death is recorded, it is recorded in this country in a way that, 163 00:15:45,090 --> 00:15:50,190 you know, within five days you have to go to A to certify the death that gets pulled into the earth. 164 00:15:50,250 --> 00:15:57,959 And each week they produce an amazing amount of data. That is the sort of age group, the location, the facts and all. 165 00:15:57,960 --> 00:16:07,410 That's really helpful. So I wrote that piece and then I remember I did a podcast with the BMJ about corona viruses and what are they? 166 00:16:07,410 --> 00:16:17,010 And I was just a very interesting time because at that point I think nobody really knew very much about these features, epidemiology, viruses. 167 00:16:17,010 --> 00:16:22,770 And there were very few people, I'd say a few hundred in the world who were interested in this area. 168 00:16:24,130 --> 00:16:29,470 And we've been interested in it because in the last pandemic, going back to 209, 169 00:16:29,800 --> 00:16:38,140 which is the swine flu pandemic, which we did a lot of work in that on the antiviral drug like Tamiflu. 170 00:16:38,320 --> 00:16:44,950 Yes. And we'd spent four and a half years looking at systematically reviewing the evidence on Tamiflu. 171 00:16:45,520 --> 00:16:52,540 And one of the key areas which we changed the method was we found that about 60% of the evidence had never been published. 172 00:16:52,780 --> 00:16:58,570 And that's called publication bias. And we went and got from the manufacturer manufacturers. 173 00:17:00,130 --> 00:17:06,190 The Clinical study of study reports, which are huge documents, but they're the documents that underlie all what happens in the trial. 174 00:17:06,520 --> 00:17:10,480 And we used them and it took a few years to produce that systematic review. 175 00:17:11,200 --> 00:17:18,879 So it's interesting, many of the interesting people who were the big names you'll hear like the chief scientific officer, 176 00:17:18,880 --> 00:17:26,780 like Patrick Vallance with the head of GSK at the time. And GSK produced the name of it and the name of it with one of the drugs that we looked at. 177 00:17:26,800 --> 00:17:30,400 And he his company supplied us with the full study report. 178 00:17:30,550 --> 00:17:38,830 And I contacted him at that moment in time. So there was a group of people that we were aware coming in, and I think so it was that February. 179 00:17:39,010 --> 00:17:45,850 But I think I think it's fair to say in that February that there was a certain element of is this going 180 00:17:45,850 --> 00:17:51,760 to be a bit like the fourth one outbreak where there was a lot of noise and actually it petered out. 181 00:17:52,960 --> 00:18:01,570 And I think, you know, where it all started to change was when you sort of thought the the significant outbreaks in northern Italy. 182 00:18:02,710 --> 00:18:09,850 And I think that Northern Italy moment, which was about three or four weeks preceding where we were in in the UK, 183 00:18:10,630 --> 00:18:14,440 was a significant game changer in sort of what's going to come next. 184 00:18:14,440 --> 00:18:20,230 And I think there are interesting features about the outbreak in northern Italy that actually 185 00:18:21,100 --> 00:18:26,260 could explain a lot of interesting issues about what happened in that period in time. 186 00:18:26,800 --> 00:18:32,680 But I think then it moved on very rapidly. For me. 187 00:18:32,680 --> 00:18:37,299 Interestingly, I worked, uh, the week preceding lockdown. 188 00:18:37,300 --> 00:18:41,980 I think that was about the 16 to 17 the weekend before we started to go into lockdown. 189 00:18:42,550 --> 00:18:53,730 I remember I work the weekend at an urgent care GP and that involved me doing visits and that's a very interesting position to be a physician. 190 00:18:53,740 --> 00:19:02,080 When visits that we get, call them will go out and I'll go out to a care home and you'll go to a care home and on the door it will be like, 191 00:19:02,110 --> 00:19:03,880 we've got COVID in this care home. 192 00:19:04,810 --> 00:19:10,510 And that gives you a very you know, it makes you it makes you think and reflect about everything you're about to do. 193 00:19:10,510 --> 00:19:16,149 The will tell you not to go into these places and you're going, Oh, I'm thinking I booked the shift today. 194 00:19:16,150 --> 00:19:21,370 Was that a good idea? But actually the problem was at that moment in time, 195 00:19:21,640 --> 00:19:26,710 and this is one of the contributors to I think what I consider the panic measures 196 00:19:27,430 --> 00:19:31,000 is we didn't have any personal protective equipment and neither did the care home. 197 00:19:31,450 --> 00:19:34,660 And there didn't seem to be any planning place. 198 00:19:36,140 --> 00:19:41,540 And that lack of equipment meant that there was a real big hole in the floor plan, 199 00:19:41,540 --> 00:19:45,619 that somehow something was missing because when faced with an unknown, 200 00:19:45,620 --> 00:19:50,060 you do want to be in that position at that moment in time to say, look, I need to take precautions. 201 00:19:50,100 --> 00:19:54,680 And actually, many of my colleagues were in a position that we just didn't have the equipment. 202 00:19:55,730 --> 00:20:01,930 And I think that was, for me, a real position where I said, we've got a problem. 203 00:20:03,260 --> 00:20:07,880 And in that problem, there were two issues. There seemed to be a huge knowledge deficit. 204 00:20:08,330 --> 00:20:11,270 As I said, there were just lots of issues that people weren't aware of. 205 00:20:12,160 --> 00:20:16,300 And secondly, there wasn't a very clear plan about the action of what to do next. 206 00:20:17,510 --> 00:20:27,410 And about 72 hours later on a Tuesday, I got a fever cough and, uh, took care of it, and so did my wife. 207 00:20:28,370 --> 00:20:34,310 And when the world country went into lockdown, we were already in our 14 days quarantine at that moment in time. 208 00:20:35,460 --> 00:20:47,490 And, you know, and so a lot of the issues and thought processes were coming together for what the position I took next and what I thought, 209 00:20:47,490 --> 00:20:54,569 what the major need was for us to use our skills to produce things like the evidence with service, 210 00:20:54,570 --> 00:21:04,620 but also many features that had been in the last two years have been trying to improve the decision making and through informing the decision, 211 00:21:04,620 --> 00:21:13,469 because I think a lot of people and journalists, particularly politicians, the public, have had to come to what is a respiratory pathogen? 212 00:21:13,470 --> 00:21:18,570 What does it mean? How do they act? What can you do to make a difference and how should you go about that? 213 00:21:18,930 --> 00:21:21,210 So that's sort of the journey in, if you like. 214 00:21:21,620 --> 00:21:30,330 And and I guess, you know, very profound thinking about in that moment in time where we were in what was happening. 215 00:21:30,570 --> 00:21:35,120 Mm hm. Why? Is it? 216 00:21:37,050 --> 00:21:46,650 I was going to say, why is it so difficult? Is it is it is it is it actually very difficult to get certainty over a new disease like that? 217 00:21:46,830 --> 00:21:53,790 Yeah. Look, there are many areas of health care where there's more uncertainty than you consider. 218 00:21:54,770 --> 00:21:59,550 Particularly in terms of prevention, you know, treating people with high blood pressure. 219 00:22:00,140 --> 00:22:05,000 The majority of people who have drug treatment for high blood pressure will never benefit from that treatment. 220 00:22:06,710 --> 00:22:13,340 And so in certain areas, there's much more uncertainty now at the outset of a new pathogen. 221 00:22:13,340 --> 00:22:21,020 And there are 13 questions that you want to start asking about the behaviour of the virus and try to understand that very quickly. 222 00:22:21,920 --> 00:22:27,080 So for instance, one of the key attributes of a virus, if it's pandemic and pandemic theory, 223 00:22:27,500 --> 00:22:32,000 suggest that all members of society should be equally affected. 224 00:22:33,110 --> 00:22:42,710 So if you go back to the 1918 influenza outbreak, the Spanish flu, you see that actually young people were actually infected and many of those died. 225 00:22:44,120 --> 00:22:49,579 And so when you have that so for instance, if you see children and young people dying, 226 00:22:49,580 --> 00:22:55,190 you know, you've got a new pathogen and it has a severity that actually is a real problem. 227 00:22:55,940 --> 00:23:02,150 But actually, it was very quickly aware and we looked at the data and said, actually, there's a very significant problem here with age. 228 00:23:03,200 --> 00:23:10,220 That the mortality as you get older significantly goes up and actually in young people are virtually unaffected. 229 00:23:10,380 --> 00:23:15,710 In particular in terms of mortality, which is not the same for all respiratory viruses. 230 00:23:15,890 --> 00:23:23,300 So there are influenza attacks on the fires and particularly on the ones viruses like RSV really detrimental to the ones. 231 00:23:23,480 --> 00:23:25,550 We send a lot of those children into hospital. 232 00:23:25,880 --> 00:23:35,420 But this virus, 75% of the deaths were in over 75 and those under 75 were actually those with co-morbidities. 233 00:23:35,420 --> 00:23:40,130 And in subsequent, the data came out about 90, 95%, either in two categories. 234 00:23:41,360 --> 00:23:44,720 Well, that's operating much more like a seasonal pathogen. 235 00:23:45,770 --> 00:23:51,290 And that's one of the key elements that we're due to direct your interventions to. 236 00:23:51,320 --> 00:23:57,950 Who do you have to look after? What should you do? And these are the important questions that emerge very quickly. 237 00:23:58,430 --> 00:24:05,569 But early on, there was much more of a need to inform the public, the media and the policy. 238 00:24:05,570 --> 00:24:10,910 And so in the first 6 to 8 weeks, I remember I came back to work. 239 00:24:11,060 --> 00:24:14,209 I had about two weeks of feeling unwell until about another two weeks, 240 00:24:14,210 --> 00:24:20,450 and I was back in action by the fall towards the end of April and within a month. 241 00:24:22,340 --> 00:24:27,130 What had happened is by the time I go back to urgent care, it was like it was completely different. 242 00:24:27,170 --> 00:24:30,320 The plan, it got into place, but it took about a month to get into place. 243 00:24:31,310 --> 00:24:40,430 But what was interesting was the the the difference between I call it in my back garden, I've got this COVID where I work from home. 244 00:24:40,640 --> 00:24:43,970 And while everybody's in lockdown, if you go back end of April, May, 245 00:24:44,000 --> 00:24:52,040 it was incredibly nice weather in that period of time and there was a sense of everybody was in lockdown and there was information being produced. 246 00:24:52,670 --> 00:24:56,389 Much of it was not just uncertain. 247 00:24:56,390 --> 00:25:04,820 Some of it was taking viewpoints about worst case scenario or and we were just saying, look, the job here is to try and be really objective. 248 00:25:06,230 --> 00:25:11,990 And interesting, when I went back to work, it was quite it was quite therapeutic to go into work, to be honest. 249 00:25:12,200 --> 00:25:15,640 And but what was really interesting is how quiet was in the world. 250 00:25:16,940 --> 00:25:24,410 And actually it was what was what concerned me at that point is it was also very quiet in urgent care in a way that I've never seen before. 251 00:25:25,250 --> 00:25:31,320 Because we had that message protect the NHS and I think people were taking that too far because they were fearful. 252 00:25:31,340 --> 00:25:38,120 And we've had this problem with people with ongoing issues where they started to present late and where it was worth, 253 00:25:38,120 --> 00:25:48,200 where it's normally present much earlier. And I think that's one of the big issues in terms of we jumped into this lockdown, 254 00:25:48,390 --> 00:25:54,170 never been tried, never been tested, and all of those considered was something that wasn't viable. 255 00:25:55,670 --> 00:26:02,749 And I think there's going to be ongoing debate for the next hundred years about what the values are of lockdowns and restrictions. 256 00:26:02,750 --> 00:26:08,870 And there's going to be people on either side continue to make arguments about what was the right thing to do. 257 00:26:10,470 --> 00:26:13,650 But I spent about six or eight weeks, got very quickly drawn into it. 258 00:26:13,830 --> 00:26:21,480 We have a lot of connections in the media and actually spent about eight weeks and did a weekly seminar for about 40 to 50 journalists, 259 00:26:21,720 --> 00:26:25,800 just about what the old figures mean, how to interpret them. 260 00:26:26,010 --> 00:26:32,010 And so they come out on Tuesday and at 1:00 Science Media Centre would have a briefing and we present the data and said, 261 00:26:32,010 --> 00:26:38,040 Here's what you might want to think about and look out. And so it was an exercise of working with the media to try and inform. 262 00:26:39,040 --> 00:26:42,100 What was going on and how you might interpret the data. 263 00:26:42,760 --> 00:26:46,930 So what was going on with lots of older people dying and a lot of them in care homes? 264 00:26:47,170 --> 00:26:53,530 Yeah. So that was, you know, and pointing that out. So for instance, we went into the lockdown and what was interesting, 265 00:26:53,530 --> 00:27:02,650 if you look at the data is the outbreaks in care homes continue to go up for about another two weeks and about 30% of the deaths were in care homes. 266 00:27:03,160 --> 00:27:09,710 And so generally, if you if you look at that, you think, well, that's where we should be put in 30% of resources. 267 00:27:10,030 --> 00:27:15,190 That's still a big issue for us to argue and point out what I call the Department of the obvious. 268 00:27:15,880 --> 00:27:22,560 There's a problem here and that there isn't much high quality evidence to inform what happens in care home. 269 00:27:22,870 --> 00:27:29,200 But there is a lot of observational data. For instance, the number of staffing reduces the mortality. 270 00:27:29,620 --> 00:27:34,270 Those homes that have clinical examinations on a daily basis have lower mortality. 271 00:27:35,200 --> 00:27:42,909 The size of the home can make a difference. And in America they have these green have homes where there are only about ten or 12 people and but they 272 00:27:42,910 --> 00:27:48,489 have better staff ratios and they don't have this problem where you've got these super sized care homes. 273 00:27:48,490 --> 00:27:55,780 So if they have an outbreak, they can't manage it. There are there was an interest in issues with the elderly, which we've looked into, 274 00:27:55,810 --> 00:28:01,090 because one of the problems when you're elderly, if you get this concept called immunofluorescence. 275 00:28:02,210 --> 00:28:07,860 That basically your immune system starts to slowly wear down. 276 00:28:08,130 --> 00:28:16,560 So it just doesn't become as reactive. And we've noticed this for some time because one of the key things about the very elderly is, for instance, 277 00:28:16,560 --> 00:28:23,940 if they have a urinary tract infection, while a young person will just say, I've got burning, stinging and a fever and a manual. 278 00:28:25,090 --> 00:28:27,280 But actually, if you look at the evidence in elderly people, 279 00:28:27,280 --> 00:28:31,640 they may prevent with something like of legs, confusion, they don't have the tradition over. 280 00:28:31,660 --> 00:28:36,880 Yeah. Falling over. And that's because they may have had the infection on board for a week or two. 281 00:28:37,180 --> 00:28:42,730 And actually they're getting seriously on well, but they don't make the same immune response, which is the fever. 282 00:28:43,420 --> 00:28:48,400 And that's the same probably in the care home population that actually when you go in there, 283 00:28:48,610 --> 00:28:53,460 you see that actually you can end up with a lot of really unwell people, but no one's actually noticed it yet. 284 00:28:53,480 --> 00:29:00,470 And then you've got staff going from one to the other, so it's practically impossible to manage that outbreak. 285 00:29:00,490 --> 00:29:09,140 With the current systems we have in place. And today we've still not sorted out that care home issue. 286 00:29:10,090 --> 00:29:13,659 And we're not sorted out social care. It's a big issue. 287 00:29:13,660 --> 00:29:19,840 And as the population ages, you basically have more of a problem with respiratory pathogens. 288 00:29:20,140 --> 00:29:26,620 And so I see people go, well, this is not the common cold and the common cold is not a problem. 289 00:29:26,620 --> 00:29:31,600 And I go, Yeah, that's correct. But actually, if you take a virus like rhinovirus and put it in a care home, it's devastating. 290 00:29:32,590 --> 00:29:40,150 So in the wrong population. Yeah, but in the wrong population with immunosuppressants, poor health, you are vulnerable. 291 00:29:40,330 --> 00:29:45,489 It can be devastating in that environment and I don't think we've learned how 292 00:29:45,490 --> 00:29:51,400 to consider this issue of risk and a lot of it's got lost in the pandemic, 293 00:29:52,270 --> 00:29:56,410 but I think that's a good example of what we did. 294 00:29:56,790 --> 00:30:02,770 One of the things we did early on as well with a lot of statisticians. 295 00:30:03,100 --> 00:30:06,159 I'm a clinical epidemiologist and we just love looking at the data. 296 00:30:06,160 --> 00:30:11,680 And we all had a lot of spare time because we're stuck in a cabin and home and we can talk to each other and know what's going on. 297 00:30:12,940 --> 00:30:20,620 And very early on, it was very apparent, for instance, the way the data was reported was being I don't think it was people doing on purpose. 298 00:30:20,620 --> 00:30:22,720 I just think they didn't understand what the data was. 299 00:30:23,110 --> 00:30:31,959 So what happens is the way the data gets reported through NHS England and Public Health England on a Tuesday, they always dump in a lot of data, 300 00:30:31,960 --> 00:30:37,540 but the data would come in from care home, from hospital and they'd say there've been 1600 deaths today, 301 00:30:38,560 --> 00:30:42,850 but that was the date of reporting of death, not the day they actually occurred. 302 00:30:43,480 --> 00:30:47,260 So we did the simple things and actually NHS England were the first to come on this. 303 00:30:47,260 --> 00:30:52,870 And so these distribute back about two weeks and they actually look much more like a normal 304 00:30:52,870 --> 00:30:57,999 distribution then you thing deaths have gone up fourfold today and we're going know they're actually 305 00:30:58,000 --> 00:31:04,180 coming down and and so we had this out where we was making statements going that's the coming 306 00:31:04,180 --> 00:31:08,020 down and the media report they're going up four fold and people were latching onto that. 307 00:31:08,470 --> 00:31:14,290 And so we were just trying to clearly correct the data so you could inform the decisions. 308 00:31:15,040 --> 00:31:19,090 And we've continued to do that throughout, and I think that's been helpful. 309 00:31:19,570 --> 00:31:24,730 But the idea that you produce data is is incredibly important, that it's accurate. 310 00:31:26,020 --> 00:31:29,380 Now it's a bit like throwing darts at a board. 311 00:31:29,560 --> 00:31:33,820 There's a bull's eye. An accuracy means you're near the bull's eye. 312 00:31:34,570 --> 00:31:37,270 But what we get with a lot of data is it's precise. 313 00:31:37,480 --> 00:31:42,730 So the darts might be very near together to each other, but it might be some way from the bull's eye. 314 00:31:43,450 --> 00:31:51,130 So this concept of accuracy versus precision, and we get lots of precision in the modern world because we get load the data, big data. 315 00:31:51,460 --> 00:31:58,080 But often accuracy is missing. In the job is to hone in on that information and try and go right. 316 00:31:58,080 --> 00:32:07,140 What's happening in care homes. And and the second area, for instance, where there were lots of problems and still are hospital acquired infections. 317 00:32:08,430 --> 00:32:12,120 And that's been an interesting area and I think we've looked into that. 318 00:32:12,120 --> 00:32:13,980 So we continue to look in areas. 319 00:32:14,490 --> 00:32:21,070 But one of the things we also did early on, which is develop the Oxford COVID evidence, is to just put this information out. 320 00:32:21,110 --> 00:32:29,730 And how do you how did that operate? Well, we have a website, the CBN website, and actually I established in help established in 1995, 321 00:32:30,030 --> 00:32:33,720 I mean, I'd only just about started turning the Internet on it those days. 322 00:32:34,230 --> 00:32:39,120 And I remember we populated a website with evidence and facts and how to do it. 323 00:32:39,120 --> 00:32:43,290 And I've been involved in developing ever since. And we've always I've always had this. 324 00:32:45,290 --> 00:32:46,669 Job. Of all part, 325 00:32:46,670 --> 00:32:54,440 my job is to communicate what the evidence is and what it means and actually were just look for gaps in the evidence based like nobody had. 326 00:32:54,470 --> 00:32:58,560 What's the evidence for social distancing? What's the evidence for masking what? 327 00:32:58,570 --> 00:33:03,170 What's the impact of temperature and humidity? What is case fatality rate mean? 328 00:33:03,170 --> 00:33:10,190 What's the infection fatality rate? The term that would be bandied around for the first time. 329 00:33:10,400 --> 00:33:17,719 And and what was different with this time is normally when that happens, it might be one article, but the whole papers were full of it. 330 00:33:17,720 --> 00:33:21,680 One. And there are just lots of misinterpretations. 331 00:33:21,680 --> 00:33:29,209 I say people taking the information and running with it and going, Oh, you know, we might be talking about the case fatality rate verses. 332 00:33:29,210 --> 00:33:35,000 Know, what you're really interested in is some other measure and using data from China which doesn't match what we're seeing here. 333 00:33:35,690 --> 00:33:45,079 And I think we just felt that actually we should produce and write and put our information in evidence to just inform the debate. 334 00:33:45,080 --> 00:33:52,120 And actually had a huge traction really early on because it was just it also amalgamate other people's studies. 335 00:33:52,130 --> 00:33:59,750 So is it all your own work on that? No, no, no. So we our job is one of the keys within systematic reviews is they can take six months to a year. 336 00:33:59,810 --> 00:34:04,310 Or if I said use clinical study report, you're talking four years. 337 00:34:04,730 --> 00:34:14,250 But actually we have skills of rapid review where what we do is restrict some bit from the methods so we can speed up the process and the bit. 338 00:34:14,360 --> 00:34:20,900 Three Restrict don't add in too much bias. And if we do that, we can produce reviews in about 5 to 7 days. 339 00:34:21,930 --> 00:34:29,030 And so that's our rapid review methodology. And I think over time, people are looking to automate that process. 340 00:34:29,040 --> 00:34:35,309 But I think the next ten, 20 years will see more of an appetite for this is the evidence. 341 00:34:35,310 --> 00:34:39,120 How do we summarise it and then provide you with the latest update? 342 00:34:39,810 --> 00:34:43,380 And so we used all of our skills to produce rapid reviews. 343 00:34:44,220 --> 00:34:53,370 And the people I work with are probably some of the best in the world at doing this, and I think it's probably in Oxford. 344 00:34:53,370 --> 00:35:00,719 We actually do have this long tradition of epidemiology going right back to Richard Dole's age to send over 345 00:35:00,720 --> 00:35:07,380 IBM Cochrane and evolving methods for how do you apply health care information and evidence to decisions. 346 00:35:07,400 --> 00:35:15,240 And that's where we are now. We're still working on how do you get this optimised way of getting evidence to inform decisions? 347 00:35:15,240 --> 00:35:22,200 And it's difficult because there's lots of evidence out there that can be contradicting or harmful. 348 00:35:22,200 --> 00:35:27,050 And there were papers that were being retracted. There were all sorts of drugs being bandied around. 349 00:35:27,060 --> 00:35:31,830 You should use these drugs and you're going, well, we don't we don't do it the speed and pace. 350 00:35:31,860 --> 00:35:35,910 And we're going back to the days of opinion overriding the evidence. 351 00:35:36,990 --> 00:35:39,750 And I think that was hugely challenging early on. 352 00:35:40,350 --> 00:35:46,870 I mean, in terms of the the kinds of restrictions that, you know, lockdown and mask and all that kind of thing. 353 00:35:48,410 --> 00:35:56,250 I mean, do you think it was would be fair to say that that things had to be decided so fast that there 354 00:35:56,250 --> 00:36:01,620 simply wasn't time to reach the standard of evidence that you would that would have been desirable? 355 00:36:01,920 --> 00:36:09,180 Yeah. You know, if you spoke to me 20 years ago as a clinician, I'd say when I went into a moment of health care crisis in decision, 356 00:36:09,180 --> 00:36:12,360 I'd say you've got to make decisions really quick and efficiently and fast. 357 00:36:12,930 --> 00:36:20,610 And as a wise a physician, I'll go into many situations now where it looks really quite ominous for the individual. 358 00:36:20,970 --> 00:36:25,080 And now I tend to take a step back and just slow down my thinking, my analysis. 359 00:36:25,470 --> 00:36:29,490 And all the trainees want to act really quickly and say, Oh my God, the person's going to die. 360 00:36:29,660 --> 00:36:35,530 Well, we've got more time than you think. I think I think you always have a bit more time than you think. 361 00:36:35,550 --> 00:36:44,030 Apart from a few odd situations. And I think in those situations, I think it's so obvious to everybody, isn't it? 362 00:36:44,390 --> 00:36:47,650 I mean, you know, there are times when someone is bleeding to death. 363 00:36:47,660 --> 00:36:53,740 You've got to work really quick. But actually, in many situations, you've got much more time than anything. 364 00:36:53,780 --> 00:36:59,530 Someone has had a cardiac arrest. Minutes matter, you know, I mean, in this instance, when. 365 00:36:59,840 --> 00:37:04,070 So in in March. Transmissions seem to be pretty fast. 366 00:37:04,730 --> 00:37:08,810 Yeah. So I think I think having here's where we're going to get the division of people. 367 00:37:09,290 --> 00:37:12,590 I think there was a problem with preparedness. Oh, clearly. 368 00:37:13,580 --> 00:37:20,820 Oh, yeah. And so that problem of preparedness, lack of preparedness, meant that it almost made the decision inevitable. 369 00:37:20,840 --> 00:37:25,579 Yeah. So you could say in a perfect world, if the NHS had been totally prepared, 370 00:37:25,580 --> 00:37:33,530 had got all the PPE and had you in and got a plan, then you could have acted differently. 371 00:37:33,530 --> 00:37:38,370 But given that they didn't. Yeah. So I think that's the issue. So first time round you would go. 372 00:37:38,390 --> 00:37:44,630 But you know, actually what happened is certain countries like Sweden decided to take a different tact. 373 00:37:45,110 --> 00:37:50,600 Now, obviously, there was a big domino effect of countries taking this viewpoint. 374 00:37:50,750 --> 00:37:55,280 So I think it was incredibly hard for anybody to go go against that in the first lockdown. 375 00:37:55,580 --> 00:38:00,080 But Sweden did. And it's interesting, if you if you look at the first lockdown, 376 00:38:00,530 --> 00:38:06,200 when you start to analyse the data is people that are already modifying their behaviour quite considerably. 377 00:38:07,670 --> 00:38:14,270 You can go on Google and they can tell you about the activity on transport people in the workplace and actually dropped off a stone already. 378 00:38:14,960 --> 00:38:17,780 And in fact, if you look at the data, 379 00:38:18,020 --> 00:38:26,180 the deaths peaked on about April the eighth and we tracked back is the infections peaked about a week before we went into lockdown. 380 00:38:27,050 --> 00:38:31,200 And I think people have learnt over time is to watch the bell shaped curve. 381 00:38:31,220 --> 00:38:35,900 There's a chap called William Farr that you can go back in history and look up Falls Law. 382 00:38:36,530 --> 00:38:40,730 Firth You know, basically infections roughly rise and fall in a symmetrical pattern. 383 00:38:41,480 --> 00:38:45,590 And so you get this bell shaped curve. And that's exactly what we continue to see. 384 00:38:45,590 --> 00:38:50,060 Now, we're actually just about on the cusp of the bell shape right now. 385 00:38:50,990 --> 00:38:54,230 And what happens when you get to the top of the bell shape, everybody starts to panic. 386 00:38:55,230 --> 00:39:02,770 But I think the fact that the biggest one for me with not even having a stockpile of PPE, you just can't go. 387 00:39:02,790 --> 00:39:07,139 You can't carry on because you're not aware of at that moment in time what's the predominant mode 388 00:39:07,140 --> 00:39:12,050 of transmission and how is it going to be affected in that with number one major problem for me? 389 00:39:12,210 --> 00:39:18,900 Just one. Well, if you haven't got that in place, you have to actually say press pause on the bottom. 390 00:39:19,770 --> 00:39:26,040 So I think that's why I think and I think why that happens is is I think, you know, 391 00:39:26,760 --> 00:39:31,770 is influenza has been on the government register for the last two decades. 392 00:39:31,770 --> 00:39:38,670 It's thought they were climate change might even say to both climate change given the potential catastrophe it can cause. 393 00:39:39,120 --> 00:39:47,190 But somehow what happens is probably in in about ten years time, as we filter along, everything starts to get pushed in the fore and disappears. 394 00:39:47,490 --> 00:39:57,420 And it doesn't quite become a predominant issue. And so we this is a major issue about institutional knowledge and losing these all perspectives. 395 00:39:57,420 --> 00:40:00,930 And somebody said, well, why are we spending 250 million on something we never use? 396 00:40:01,800 --> 00:40:05,040 And you go, Yeah, because one day we might need the shelf. 397 00:40:05,400 --> 00:40:10,559 And I think and then second with that is simple things like this is just economically. 398 00:40:10,560 --> 00:40:13,710 I can't fathom why some of this stuff is not on shored. 399 00:40:14,430 --> 00:40:18,270 So we were having to buy it from around the world. So the price was going through the roof. 400 00:40:18,270 --> 00:40:21,870 We spent huge amounts of money and now we're paying the consequences of that, 401 00:40:22,350 --> 00:40:26,070 that actually people didn't realise that actually you need a facility to be able to. 402 00:40:26,280 --> 00:40:30,600 If you're not going to stockpile it, you have to have a facility that can go up and down very quickly. 403 00:40:31,050 --> 00:40:34,800 And I still don't think that message has got through. I call that health security. 404 00:40:34,830 --> 00:40:39,840 You have to be able to maintain the levels of sustainable PPE in a pandemic like this. 405 00:40:39,840 --> 00:40:48,270 You can't buy in at the cost we pay. And you could see the widespread panic that the restriction in fact, I was talking about it yesterday. 406 00:40:48,690 --> 00:40:54,329 Shelves bare of toilet roll, pasta disappearing, all of the flour disappearing. 407 00:40:54,330 --> 00:40:57,959 And I'm like, that must be a big stockpile of this somewhere in people's houses. 408 00:40:57,960 --> 00:41:07,110 But that there was a real sort of panic and anxiety across wider society that probably lasted for a couple of months. 409 00:41:07,110 --> 00:41:09,390 But some people still is still there today. 410 00:41:10,470 --> 00:41:17,780 So I think I think the interesting issue is where are we nearly now thinking of restrictions and lockdowns? 411 00:41:17,790 --> 00:41:25,710 And I think it's interesting where we are, and I think people will look back for many decades to analyse was it a good or bad thing? 412 00:41:27,120 --> 00:41:34,919 But what you've got is a natural control experiment in Sweden where they didn't restrict what they relied on. 413 00:41:34,920 --> 00:41:38,210 They did have. So they have access. I don't have the figures. Yeah. 414 00:41:38,220 --> 00:41:40,890 Yeah. So, yeah. So yeah. So they did. Yeah. 415 00:41:40,980 --> 00:41:49,810 But what they didn't do is have so what happened is with the modelling is it predicted to be half a million deaths in an unmitigated scenario here in. 416 00:41:50,280 --> 00:41:55,770 Yeah. And basically said you have to go for suppression and you'll get that down to 20,000 people. 417 00:41:55,800 --> 00:42:03,240 Well that was wrong as well because what the models don't count for is people, individual behaviour change. 418 00:42:04,330 --> 00:42:10,840 And what the difference is in Sweden is people modify their behaviour according to the risk. 419 00:42:11,340 --> 00:42:14,140 I actually think people are really good at modifying their behaviour. 420 00:42:14,590 --> 00:42:21,700 The question is do you need the government to regulate it or can individuals be informed and then say actually if you look at the size of an outbreak, 421 00:42:21,700 --> 00:42:29,170 it's about eight weeks where you get excess death. And that happened March, April, and it happened in January, February 2021. 422 00:42:29,500 --> 00:42:33,160 So it did happen again. I mean, yeah, but it was only about six or eight weeks. 423 00:42:34,180 --> 00:42:46,090 Now, the key is is is this is the key discussion going forward is what happened in 2020 was the belief that actually the model with the Chinese model. 424 00:42:47,260 --> 00:42:50,740 That actually you could follow a model of depression, 425 00:42:51,550 --> 00:42:59,410 that you could basically take your virus and get it down to below about a thousand to keep it there with things like effective test and trace. 426 00:43:00,610 --> 00:43:07,300 And for many of the people who are epidemiologists, virus experts will just go, we don't quite understand that. 427 00:43:07,990 --> 00:43:12,700 There's a reason you call it going viral. The incredibly difficult to manage. 428 00:43:12,700 --> 00:43:15,520 You know, you can do it in the short term, but over the long term. 429 00:43:16,240 --> 00:43:21,560 What's the mechanism and what do you push and what are the consequences of all the strategies is no. 430 00:43:22,000 --> 00:43:30,610 But I think what and this is an important aspect within the concept to BBM and aware of this discussion, everybody's looking for the silver bullet. 431 00:43:31,510 --> 00:43:37,600 There's a simple way to manage this and there's a simple way to prevent this and the simple treatment. 432 00:43:38,110 --> 00:43:42,940 And actually, everyone is much more complex and much more uncertain about what's going to happen next. 433 00:43:43,330 --> 00:43:47,350 So let's talk let's talk about transmission, because that's one of the things you say. 434 00:43:47,920 --> 00:43:52,750 There was a lot of uncertainty about how the virus was transmitted early on. 435 00:43:52,960 --> 00:43:57,880 So what what studies did you do? So, again, again, a transmission. 436 00:43:57,880 --> 00:44:04,070 Incredibly interesting issue. And I think what was interesting, if you go in the history of the UK, 437 00:44:04,070 --> 00:44:10,510 you had a lot of really high quality research until about the nineties in terms of respiratory pathogens. 438 00:44:10,510 --> 00:44:13,870 We used to have a monthly common cold unit in the UK. 439 00:44:13,870 --> 00:44:18,240 Oh yes. They used to give you a young man. Yeah, yeah, yeah, we called you. 440 00:44:18,250 --> 00:44:23,560 But yeah. Human challenge to these two young AMI people and see what happened next. 441 00:44:24,220 --> 00:44:30,070 And then actually probably what ended much of that was the sort of AIDS HIV because 442 00:44:30,070 --> 00:44:35,469 a lot of the focus shifted and that's what happens in research priorities shift, 443 00:44:35,470 --> 00:44:42,610 in the money shift. And then the predominant strategy was vaccination because the predominant mode was influenza. 444 00:44:43,750 --> 00:44:48,120 But the first thing to say is to say how many respiratory pathogens are out there? 445 00:44:48,130 --> 00:44:51,700 Well, when I'm a GP there's about 40. I know of that. 446 00:44:51,700 --> 00:44:59,410 I could say these affect individuals who come through the door, but about 40% of what people have got, we've no idea what they are. 447 00:45:00,190 --> 00:45:03,970 And it could be hundreds more that have not been discovered yet. 448 00:45:05,170 --> 00:45:09,399 So I think the firstly so there's a lot of different respiratory pathogens at any one time. 449 00:45:09,400 --> 00:45:12,790 They're all interacting all the time and that is really interesting. 450 00:45:13,270 --> 00:45:22,240 So, so this idea of influenza morphed into there's only one virus that really matters, but actually there are still all these other ones out there. 451 00:45:22,330 --> 00:45:26,140 And now we know there are like coronaviruses and we knew about it. 452 00:45:26,260 --> 00:45:29,260 We knew there were corona, but there were other. Yeah, yeah, yeah. 453 00:45:29,350 --> 00:45:32,860 So, you know, there are four common ones that been circulating. 454 00:45:33,370 --> 00:45:38,620 Then you've got the ones like sa one and uh so you got them in the background. 455 00:45:38,920 --> 00:45:43,120 But we've had four common ones that basically affect children, infect adults, 456 00:45:43,120 --> 00:45:51,340 and everybody who's basically probably over the age of about two or three had probably had a circulating common corona virus already. 457 00:45:52,720 --> 00:45:55,690 But actually transmission is about ultimately understanding. 458 00:45:55,690 --> 00:46:03,190 Transmission then helps you inform how you might intervene because that's ultimately you want to know how these transmitted. 459 00:46:03,610 --> 00:46:09,010 So for instance, you go back to the common cold. So for instance, in something like rhinovirus, 460 00:46:09,490 --> 00:46:13,569 they did things like put it on people's hands and actually get them to shake hands with 461 00:46:13,570 --> 00:46:17,290 each other and then see if the other person and then split them into barracks and said, 462 00:46:17,500 --> 00:46:21,909 did they get infected? And they showed it was direct contact. Now we can't do them. 463 00:46:21,910 --> 00:46:27,820 We've sort of lost that human challenge to the although they have done the human challenge studies within the vaccine development. 464 00:46:28,030 --> 00:46:35,259 So, you know, actually, although it sounds on ethical human challenges, studies are at the top of pyramid to understand transmission. 465 00:46:35,260 --> 00:46:41,409 We do it with malaria. Yeah. However, we got asked by the World Health Organisation, 466 00:46:41,410 --> 00:46:48,250 it was about September of 2020 and said they'd done a thought, a review and said This is where we are. 467 00:46:48,250 --> 00:46:54,549 But there was so much evidence emerging in a way that never emerged before for a respiratory pathogen. 468 00:46:54,550 --> 00:46:58,570 With about 2000 studies a week being published on Corona virus, 469 00:46:58,570 --> 00:47:04,240 it was incredibly hard to keep up to date with what was going on and emerging and what was happening. 470 00:47:04,240 --> 00:47:08,889 Everything was getting picked up that said, Oh, it's airborne, it's fomite is this? 471 00:47:08,890 --> 00:47:12,490 It's in the sewage, it's everywhere, you know? And it's like, how do you make sense of the. 472 00:47:13,090 --> 00:47:18,430 So we started to do systematic reviews on the mode of transmission. 473 00:47:19,590 --> 00:47:25,980 And we're still in the midst of doing that, and I still think we will get to some certainty. 474 00:47:27,300 --> 00:47:31,530 Oral faecal close contact. Vertical transmission. 475 00:47:31,740 --> 00:47:37,290 Mother to the foetus. Airborne of a third fomite. 476 00:47:38,070 --> 00:47:44,250 We've looked at asymptomatic transmission. We've looked at transmission in immunosuppressed people. 477 00:47:44,760 --> 00:47:51,479 And we've just done our latest update. We've looked at included 591 studies in Across Them review. 478 00:47:51,480 --> 00:47:55,830 So it's been a huge effort. Look at some of your papers and maybe you did make the observation at the beginning 479 00:47:55,830 --> 00:47:59,590 of a couple of them that in general the quality of the studies was poor, 480 00:47:59,820 --> 00:48:04,040 very poor. So if you put a lot of poor studies together, how do you get a good answer? 481 00:48:04,060 --> 00:48:09,140 You don't, you don't. You don't. And I think early on there was a rush. 482 00:48:09,150 --> 00:48:13,220 It was like a gold rush for to produce evidence on on COVID. 483 00:48:13,830 --> 00:48:17,459 And so, for instance, one of the simple things we said, so, for instance, 484 00:48:17,460 --> 00:48:23,340 if you're going to do a study that claims airborne transmission, then you should do some airborne sampling. 485 00:48:24,030 --> 00:48:27,929 And there are studies that say we didn't do any sampling, but it's transmitted through the air. 486 00:48:27,930 --> 00:48:31,530 And you're like, Well, okay, so we've got to create some quality measures. 487 00:48:31,560 --> 00:48:34,590 What defines a good quality study and is that. Yes. 488 00:48:34,650 --> 00:48:38,880 So, yeah, I read those papers as well. I mean, there are those who argue that. 489 00:48:39,730 --> 00:48:45,280 Sampling virus from the air is an incredibly difficult thing to do in any kind of reliable way. 490 00:48:45,550 --> 00:48:51,280 And there are other kinds of evidence. Yeah, I guess more circumstantial kinds of evidence. 491 00:48:51,580 --> 00:48:54,680 Yeah. Yeah. Airborne transmission look likely. 492 00:48:54,700 --> 00:48:58,840 Yeah. So, you know, actually. But there are 27 studies now that have tried to do it. 493 00:48:59,020 --> 00:49:01,420 So actually early on we said there's only four or five. 494 00:49:01,750 --> 00:49:06,489 But actually what we found in at the back end of of this is actually people are starting to do better, 495 00:49:06,490 --> 00:49:10,450 higher quality studies because they get the more serious scientists thinking about this. 496 00:49:10,870 --> 00:49:16,890 But you're right, it it it reminds me of a lot of the problems that occurred early on in beam in randomised trials. 497 00:49:17,290 --> 00:49:23,410 They said there's no way, no reporting standards. So people like Doug Goldman, who is a famous statistician in Oxford, 498 00:49:23,740 --> 00:49:27,850 started movements like consort and Equator and said, We're going to bring reporting standards. 499 00:49:27,850 --> 00:49:29,139 How do you report this stuff? 500 00:49:29,140 --> 00:49:36,130 Because you can't pull it together if it's not reported in a similar way because people would just miss outcomes because they didn't like the answer. 501 00:49:37,000 --> 00:49:45,130 So you're right, there's been a huge problem, but we've been working to create standards for how to determine, uh, transmission. 502 00:49:45,250 --> 00:49:49,310 And we've just published it an update, and it's only peer review now. 503 00:49:49,330 --> 00:49:56,379 We presented it via conferences. We've got a network around the world of people who look at this, and it's clear to us, 504 00:49:56,380 --> 00:50:00,910 if you want to make a transmission claim, there are a couple of things you do have to do. 505 00:50:00,920 --> 00:50:02,590 You do have to have viral culture. 506 00:50:03,620 --> 00:50:11,659 And that means you can say, for instance, if I shake your hand and then we go into your hand and then swipe your hand, 507 00:50:11,660 --> 00:50:19,520 we're going to take that and put it into what's called very thick cells and try and grow that and see if we can get an actual virus. 508 00:50:19,550 --> 00:50:23,480 We can also then do genomic sequencing to make sure it's the same sequence, and then you go, 509 00:50:23,480 --> 00:50:27,620 Yeah, actually we've established transmission, and that's probably the best way to do it. 510 00:50:28,190 --> 00:50:31,790 Now there are surrogate laborious and time consuming. 511 00:50:32,210 --> 00:50:37,670 Yeah, but yeah, but that's like saying recovery trial of 20,000 people. 512 00:50:37,970 --> 00:50:42,500 Why didn't you just do a trial of ten people and say, well, dexamethasone works. 513 00:50:42,670 --> 00:50:44,760 Hmm. Can you imagine what that you know. 514 00:50:44,840 --> 00:50:49,860 Sorry, that's the I think that's all you're doing is giving them some medicine and finding out what the answer is. 515 00:50:49,860 --> 00:50:53,750 It's all this. You know, the individuals will be the collecting of the data. 516 00:50:53,780 --> 00:51:03,110 Yeah, but this is incredibly important. If you want to make a definitive statement, X is transmitted through Y with certainty. 517 00:51:03,860 --> 00:51:07,250 You need to have high quality evidence to be able to make that statement. 518 00:51:07,610 --> 00:51:14,300 You only need to do it about twice. You need to do it once and then replicate it and say, Look, this is what we're looking for. 519 00:51:14,720 --> 00:51:18,960 And I think this is goes to the core of the difference in evidence based approach. 520 00:51:18,980 --> 00:51:22,970 Anybody down here can say, I've got a bit of information, here's how I interpret it. 521 00:51:23,660 --> 00:51:29,810 And, you know, and that's okay. But what's happening is that become statement of fact because of the way it's treated in the media. 522 00:51:30,170 --> 00:51:38,329 Our job is to say, if you're going to say something this way, then actually here's the type of evidence that informed that decision. 523 00:51:38,330 --> 00:51:48,020 And I think this is crucial to the whole debate because that science and science requires I'm building something that is a hypothesis that you tested. 524 00:51:48,470 --> 00:51:53,990 And only only when you can't you can't refute that null hypothesis. 525 00:51:54,230 --> 00:51:58,060 Do you say this is transmitted in this way? So sorry. 526 00:51:58,070 --> 00:52:05,270 How do looking at all the studies you look back so far, what do you think the likeliest form of transmission is? 527 00:52:05,300 --> 00:52:12,230 Yeah, I still think we're in a situation where it's a combination of contact, droplet close contact, but. 528 00:52:12,450 --> 00:52:15,910 But it also means we can't refute anything because of the quality. 529 00:52:15,920 --> 00:52:21,560 And in certain situations like in this room, if we shut the windows and the doors, 530 00:52:21,860 --> 00:52:26,360 there's more likely in a closed environment it'll permeate a bit further. 531 00:52:27,200 --> 00:52:32,690 But actually that's airborne. Well, that would be but that would be in a specific premotor environment. 532 00:52:33,020 --> 00:52:41,990 So I think, again, the term airborne is not helpful because I think the term airborne is is collates with it's everywhere. 533 00:52:43,070 --> 00:52:46,670 So airborne means it's open air in the in the atmosphere. 534 00:52:46,670 --> 00:52:51,230 It doesn't it's everywhere when you're out, find it. So I think the terms are not helpful. 535 00:52:51,590 --> 00:52:59,780 And I think people should be if the science is very careful about making generic statements about it's airborne. 536 00:53:00,290 --> 00:53:07,160 Because I think what we need to do is be very clear in this situation, in this circumstance, this is how it might be transmitted. 537 00:53:07,240 --> 00:53:15,080 What it. Yes. So what you've got to do in terms of having a policy, what you need to know is how far apart people need to be not to catch it. 538 00:53:15,320 --> 00:53:23,060 Yeah, but like say for instance, ultimately, even irrespective of how it's transmitted, that should inform the interventions you will do. 539 00:53:23,270 --> 00:53:28,160 And then you should formally test those interventions and you should touch them with randomised controlled trials. 540 00:53:28,910 --> 00:53:31,309 But for somehow we get that for drugs and vaccines, 541 00:53:31,310 --> 00:53:37,520 but we don't get it for non-pharmaceutical interventions there's been only two randomised controlled trials of masks. 542 00:53:38,390 --> 00:53:39,410 That being proper? 543 00:53:39,420 --> 00:53:50,090 So far I'm aware of a third one that's testing FFP, maths versus surgical math in a clinical population in Canada, and that will report sometime soon. 544 00:53:52,240 --> 00:53:55,630 What for me is a failure of this of this pandemic. 545 00:53:55,900 --> 00:54:00,870 There are lots of questions we could have tried to answer. With that situation. 546 00:54:01,740 --> 00:54:05,550 And bingo. Well, well, well, well. 547 00:54:05,730 --> 00:54:09,900 Equipoise means you're uncertain about whether it works or not. 548 00:54:09,900 --> 00:54:13,410 If you don't have equipoise, you don't need a randomised trial. You're very clear. 549 00:54:13,830 --> 00:54:21,390 Now here's a key learning point. When you find people who disagree about what to do next, it's generally a failure of the evidence base. 550 00:54:21,780 --> 00:54:24,360 There isn't a high quality to inform what's going to happen next. 551 00:54:24,750 --> 00:54:33,090 Therefore, we can have an opinion either side of the argument make it political and keep disagreeing, and we will keep disagreeing generally. 552 00:54:33,120 --> 00:54:38,730 The answer for me in that situation is as a clinician is to is to reduce the uncertainty. 553 00:54:39,540 --> 00:54:43,739 Now, this is an interesting point in evidence based practice. 554 00:54:43,740 --> 00:54:52,380 I suspect within 2 to 3 decades we'll have done what we've done for drugs and vaccines with non-pharmaceutical interventions will get it. 555 00:54:52,770 --> 00:55:00,510 We have to test these things. We just can't go on spending billions of pounds for interventions where there is uncertainty. 556 00:55:01,930 --> 00:55:07,899 And I think and I think that will be an interesting area for history to look back on and go look 557 00:55:07,900 --> 00:55:13,210 at all the failings we've made when we thought we understood what was the right thing to do. 558 00:55:13,660 --> 00:55:17,470 And it's I mean, if I were to say precautionary principle, would that make you go off? 559 00:55:17,840 --> 00:55:25,149 Well, what I think is interesting, what does the cautionary principle mean is, again, 560 00:55:25,150 --> 00:55:30,790 it's been one of those things people have taken away and wrong with what the precautionary principle generally refers to. 561 00:55:30,790 --> 00:55:33,100 If there's a known exposure in the environment, 562 00:55:33,220 --> 00:55:40,780 that may be harmful and the precautionary principle says remove that from the environment until you can prove it safe. 563 00:55:41,470 --> 00:55:44,750 So there may be some toxin or some fertiliser there. 564 00:55:46,000 --> 00:55:49,310 It doesn't mean you go and intervene in some way. 565 00:55:49,330 --> 00:55:53,160 There are very few areas where we actually mandate an intervention. 566 00:55:54,180 --> 00:55:57,920 And that's why I think if they're also like seatbelts generally, 567 00:55:57,930 --> 00:56:03,600 that they're about removing things, smoking from the environment, smoking in workplaces. 568 00:56:03,840 --> 00:56:07,170 But all of them have a very good exposure for home. 569 00:56:07,830 --> 00:56:15,950 Very rarely do we intervene. And the only good example I can think of is seatbelts, crash helmets in, crash helmets in motorbike. 570 00:56:15,960 --> 00:56:17,910 So we make people do certain things. 571 00:56:18,480 --> 00:56:24,930 But to be honest, the precautionary principle is they never get on the motorbike in the first place because it's so harmful. 572 00:56:24,930 --> 00:56:28,139 It's light way up there in terms of the harmful events. 573 00:56:28,140 --> 00:56:37,650 But we let people take that risk, don't we? But actually, when we decide to do that, there has to be very clear evidence of harm and with seatbelts. 574 00:56:37,650 --> 00:56:45,410 It was actually quite some time to build up the evidence base to actually say, actually, we've got to make this mandatory. 575 00:56:45,420 --> 00:56:53,940 And it's interesting. Before that, we had all this advertising marketing campaigns simply about every trip and all that. 576 00:56:53,960 --> 00:57:01,060 The people that are older in the room remember the. And I think when you decide to intervene, you have to. 577 00:57:01,330 --> 00:57:07,450 It's not precautionary principle. We have very clear evidence of harm that will be negated. 578 00:57:07,930 --> 00:57:14,520 And a seatbelt is actually an all or nothing event. If you do not get ejected from the car with a seatbelt. 579 00:57:15,520 --> 00:57:19,120 And also the homes are virtually zero. 580 00:57:20,620 --> 00:57:28,000 So I think precautionary principle has been used in a sort of way that doesn't make sense to me. 581 00:57:28,920 --> 00:57:33,990 And again, this is there are two things that are radically different about this pandemic. 582 00:57:34,350 --> 00:57:38,520 One is the use of PCR, which we've done work in that area as well. 583 00:57:39,440 --> 00:57:50,950 And social media. And I think the social media 24 hour news bubble has created a sort of these ways of coalescing of the were 584 00:57:50,950 --> 00:57:57,360 doing it because of the precautionary principle and then what we lacked is critical thinking in that moment. 585 00:57:57,370 --> 00:58:02,810 Oh, yeah, that's why we do it. And then we suddenly sort of say, well, when do we intervene? 586 00:58:02,830 --> 00:58:11,230 And we say, yes, they do have a safety valve, but actually it's about generally removing known exposure to precautionary principle. 587 00:58:11,410 --> 00:58:15,990 Which makes sense, doesn't it? You know, you might have I've got a certain type of drink. 588 00:58:16,000 --> 00:58:22,990 It might have one of the carcinogens we've got remove it. Because actually until you can prove it safe, we're not having it in society. 589 00:58:24,080 --> 00:58:29,900 So the coaching principle is about removal and not exposing people to known home. 590 00:58:31,260 --> 00:58:36,940 No about intervening when you go into further into. So you just. 591 00:58:37,160 --> 00:58:41,600 You just threw in PCR. Yeah. So. Well, again, anything. 592 00:58:42,380 --> 00:58:48,530 Yeah. So going back, you see, in May 2009, it was very interested in the 2009 pandemic. 593 00:58:48,770 --> 00:58:50,810 There was a bit of PCR testing, but not a lot. 594 00:58:51,020 --> 00:58:59,480 And also many of the trials were starting to use PCR testing, but then we use an antibody tested and then suddenly overnight. 595 00:58:59,510 --> 00:59:05,720 Just clarify that. So. PCR testing tells you that the virus there and antibody testing tells you that has been the virus. 596 00:59:05,930 --> 00:59:13,520 Yeah, correct. Correct. So generally, if you have an antibody rise, you say if you had a fourfold antibody rise, you'd say you'd have the infection. 597 00:59:13,730 --> 00:59:17,900 And that was generally the way of establishing the group that had the infection. 598 00:59:17,930 --> 00:59:21,530 So you do a trial and say, how many people have had a fourfold antibody, right? 599 00:59:21,890 --> 00:59:27,920 But then what came along with PCR testing and that used to be a slow so it wasn't helpful. 600 00:59:27,920 --> 00:59:32,750 But then they had this real time PCR that suddenly could produce results in hours. 601 00:59:34,580 --> 00:59:39,649 And then subsequent to that, we've had lateral flow testing, which was in a minute, but we'll come up with the real time PCR. 602 00:59:39,650 --> 00:59:51,120 And what was interesting about this. Is one of the things we do a lot of and I do a lot of it in my career is when I have knowledge deficit, 603 00:59:51,270 --> 00:59:57,410 I start to teach myself about some of these issues and then I realise it's not just me with the knowledge deficit, 604 00:59:57,420 --> 01:00:00,680 there are a huge amount of people out there really don't import this fruit. 605 01:00:01,830 --> 01:00:07,530 And actually we was interested again in the relationship of PCR testing. 606 01:00:08,160 --> 01:00:13,379 What does it mean when you take in virus that may be 30,000 pages long and you 607 01:00:13,380 --> 01:00:17,730 take it down to a little fragment of about 20 base pairs in the test for that. 608 01:00:19,140 --> 01:00:22,280 And you then say you're positive. Yes. No. 609 01:00:24,180 --> 01:00:27,329 Now, both clinical tests work in a way of saying yes no. 610 01:00:27,330 --> 01:00:33,989 But actually underpinning that is a threshold for like take your blood pressure, you get to a certain point, and above that you're hypertensive. 611 01:00:33,990 --> 01:00:40,080 And below that, you know, therapy, an inflammatory marker above a certain level, it's abnormal. 612 01:00:40,080 --> 01:00:45,120 Below that it's normal. But with this test, it was yes, no. So that's the first thing that interested us. 613 01:00:45,120 --> 01:00:48,690 But that actually there's an amplification cycle called the cycle threshold. 614 01:00:49,290 --> 01:00:56,910 So what you can take is one little bit of one little bit of paper and you can have that in a sample and you start amplifying it. 615 01:00:58,170 --> 01:01:04,700 And the left that is in the original sample. The heart of the test has to work, and so it has to do more cycles because it's doubling. 616 01:01:05,250 --> 01:01:08,700 And so basically, you can go to this cycle threshold, about 45, 617 01:01:08,700 --> 01:01:15,060 which will pick up about one copy per mill on an individual that is beyond the needle in the haystack. 618 01:01:15,540 --> 01:01:20,230 But in some people, it will get to about 20 and they'll say, well, you've got a billion copies per mill. 619 01:01:20,490 --> 01:01:23,640 Well, that's a huge difference. But we treated them exactly the same. 620 01:01:25,020 --> 01:01:30,030 And we had this service where we were just trying to look at this evidence. 621 01:01:30,030 --> 01:01:37,110 And we noticed there were a number of studies coming out on the relationship of PCR testing to viral culture, 622 01:01:37,650 --> 01:01:41,549 and actually these studies had no problem doing the viral culture. 623 01:01:41,550 --> 01:01:50,550 It's really interesting. But actually we started to build this relationship that actually the more virus you had on the left a lot onboard, 624 01:01:50,550 --> 01:01:56,490 the more likely you were to be infectious and the less virus you have them, the less likely to be infectious. 625 01:01:57,270 --> 01:02:04,560 And that still is something police policy. WIV We're interested in becoming clearer because I'm where clinicians now use the test in this way. 626 01:02:04,920 --> 01:02:10,050 A cycle threshold below further means the probability of being infectious is much higher. 627 01:02:10,560 --> 01:02:15,719 The so-called threshold above further probability you being in fact you see virtually zero 628 01:02:15,720 --> 01:02:21,540 apart from a couple of situations if you're immunosuppressed or in the very short window when 629 01:02:21,540 --> 01:02:29,009 you're about to start being infected but actually meet that test it costly or laborious to 630 01:02:29,010 --> 01:02:33,450 do now because what you want to do is establish the principles and then you can use PCR, 631 01:02:33,450 --> 01:02:37,720 which we consider is a high quality test, but actually most tests will allow you. 632 01:02:38,160 --> 01:02:44,910 So I wouldn't give you the answer. Yeah, in particular because what I'm saying to you is if you've got the if you establish thresholds. 633 01:02:45,540 --> 01:02:50,070 So what I'm saying is if you have a yes no, you can't tell you who's infectious or not. 634 01:02:50,280 --> 01:02:56,640 But if you put a threshold in like a cycle threshold of 30, you've got a much better chance of being infectious. 635 01:02:57,150 --> 01:03:03,389 Yeah, I understand that. But in order to set the test for the cycle threshold is not the same as the PCR test. 636 01:03:03,390 --> 01:03:06,580 Just gives you the. Yes, no. Well, it depends. You see, some do and some don't. 637 01:03:06,600 --> 01:03:08,360 This is where we keep asking questions. 638 01:03:08,360 --> 01:03:14,550 So some give a qualitative answer where they'll just get to the end and they'll say a limited detection is 45 and positive. 639 01:03:15,030 --> 01:03:21,410 But many of the tests. Do give you a cycle threshold and can provide that quantitative result. 640 01:03:22,400 --> 01:03:24,770 And some countries in the world, like Belgium, 641 01:03:24,770 --> 01:03:30,560 are now standardising their reference laboratories and starting to provide that quite the focal threshold. 642 01:03:31,370 --> 01:03:38,570 And what this is, is the movement from analytical accuracy, what happens in the lab to developing clinical accuracy. 643 01:03:39,450 --> 01:03:43,440 Basically, Eben, how do you actually use this test in clinical practice? 644 01:03:43,770 --> 01:03:47,730 So we've rolled out speed. Now we have to think smarter about what does it mean. 645 01:03:48,270 --> 01:03:53,639 Now, our evidence suggests when we've looked at it and we've asked for the information, we've got the evidence. 646 01:03:53,640 --> 01:04:02,610 And in the countries around the UK that about 40% of people when they test positive vs know when they're a yes are not infectious. 647 01:04:03,480 --> 01:04:06,510 And there are two reasons that you actually might got the test and you've cleared it. 648 01:04:07,490 --> 01:04:11,630 And the irony fragments can keep being played for up to 6 to 8 weeks. 649 01:04:12,020 --> 01:04:20,030 In fact, we've got somebody at 180 days. Remember the Florence three that was Latin, stuck in Florence for about seven or eight weeks, 650 01:04:20,030 --> 01:04:23,599 got married because they were only going to be let free if they tested negative. 651 01:04:23,600 --> 01:04:27,679 And every week they get tested and they were positive. But we're completely. 652 01:04:27,680 --> 01:04:33,320 Well, that's contamination. They've cleared the virus, but they still testing positive. 653 01:04:33,620 --> 01:04:39,020 This is basic. Even that actually has to be brought to the fore of the myth down. 654 01:04:40,070 --> 01:04:43,070 And if you do that, it helps you think smarter about. 655 01:04:43,080 --> 01:04:45,559 So when you say there are 10,000 people in hospital, 656 01:04:45,560 --> 01:04:49,490 what you really want to know is how many of them are actually infectious and how many are not infectious. 657 01:04:50,240 --> 01:04:52,760 And that can help you make a better decision, not worry as much, 658 01:04:52,760 --> 01:04:57,080 because if that number go to 20,000, people start to panic and then instigate policies. 659 01:04:57,710 --> 01:05:02,780 So these are just create accurate information. The whole of Ibadan relies on accurate information. 660 01:05:02,780 --> 01:05:06,620 You cannot make a good decision without accurate information. 661 01:05:07,520 --> 01:05:11,390 And I think over time, over the 30 years I've been involved in it, 662 01:05:12,050 --> 01:05:18,920 the idea that people have opinions about what's the right thing to do and produce poor quality data is pervaded. 663 01:05:18,920 --> 01:05:23,260 Poor quality decision making. And so we've done the systematic review. 664 01:05:23,260 --> 01:05:27,700 We've looked 84 times. It's been published in clinical infectious diseases. 665 01:05:27,700 --> 01:05:36,250 It's been highly cited, highly accessed and started to have an impact on decision making and how people are going to think going forward. 666 01:05:36,760 --> 01:05:42,640 And so I think we'll see changes over time. The thing with evidence based best practice is we get there in the end. 667 01:05:43,360 --> 01:05:46,629 It just takes a long time. Yes. Yes, that's that that's the point. 668 01:05:46,630 --> 01:05:47,470 It takes a long time. 669 01:05:47,470 --> 01:05:55,720 But the political decision making has or the policy decision it took about 14 years to get from smoking is bad to changing the policy, 670 01:05:55,930 --> 01:05:59,260 and that's the biggest harm. Obviously, we'll get there in the end. 671 01:05:59,530 --> 01:06:07,659 Our job is to just keep putting out the information. Now, that can be controversial when you're in the midst of, well, who's going to get to that? 672 01:06:07,660 --> 01:06:10,090 And you talked about political views earlier. Yeah. 673 01:06:11,560 --> 01:06:22,510 I mean, a lot of the statements that you've made have been picked up by ostensibly political groups who simply object to the well, 674 01:06:22,840 --> 01:06:27,010 you could call them libertarian groups who object to government control of any of any kind. 675 01:06:28,150 --> 01:06:29,920 I mean, how do you feel about that? 676 01:06:30,460 --> 01:06:37,560 Well, I guess I guess the first thing is to say my views have been right at the heart of government, because in September 2020, it was right. 677 01:06:37,630 --> 01:06:40,960 The Cabinet Office helping them inform the decisions in the debate. 678 01:06:41,380 --> 01:06:46,990 I continue to work widely with policy people on political levels and inform the debate. 679 01:06:47,910 --> 01:06:52,770 And interestingly, evidence based medicine has always been controversial. 680 01:06:54,400 --> 01:07:01,719 And and and one of the things I'm very careful to do is to not tell people what to do is 681 01:07:01,720 --> 01:07:06,400 to inform the debate and say this is generally how you would respond in this situation. 682 01:07:06,430 --> 01:07:09,160 We can all have opinions from, you know, a political viewpoint. 683 01:07:09,970 --> 01:07:16,030 And I think there has been a sense that there's a sort of right and left or right and wrong. 684 01:07:16,480 --> 01:07:21,820 And I think we live in that world at the moment. And I think that's what the social media divide is creating. 685 01:07:22,600 --> 01:07:27,220 Come out of Brexit, come out from this, and it's very polarised. 686 01:07:27,940 --> 01:07:33,170 There's a lockdown around Anti-lockdown group and and there's been a, 687 01:07:33,520 --> 01:07:37,710 a group of people in Oxford that includes myself and people like to actually walk through 688 01:07:37,720 --> 01:07:43,540 it who is incredibly smart person probably theoretical epidemiologists know more about. 689 01:07:43,630 --> 01:07:51,520 I talk to her yeah viruses and and incredibly interesting and I talk to her more or less every week for the pandemic. 690 01:07:52,030 --> 01:07:56,530 Cause I'm just interested in the knowledge and understanding what's going on. 691 01:07:56,950 --> 01:08:04,659 There are things we did that I didn't understand, and I think it's my job is to point out when there's uncertainties and point out and go, 692 01:08:04,660 --> 01:08:08,080 well, look, if we're going to do that, here's what's the answer. 693 01:08:08,090 --> 01:08:11,710 So, for instance, zero COVID is a very good what's the end game? 694 01:08:12,190 --> 01:08:18,490 What do you consider is this is not like a path where you just turn off the top and actually everything will just empirically disappear. 695 01:08:19,120 --> 01:08:23,309 Actually, what the problem is, is you may be storing up huge problems for the future. 696 01:08:23,310 --> 01:08:27,549 And hey, Preston, what's happening? You push it into winter, you push more and more problems. 697 01:08:27,550 --> 01:08:31,210 And so we still going to have the fallout for years to come. 698 01:08:32,020 --> 01:08:37,870 We still haven't thought the care home issue. So all of these strategies don't sort out count. 699 01:08:37,870 --> 01:08:40,210 They don't fall to hospital acquired infections. 700 01:08:41,700 --> 01:08:47,610 There's huge problems like right now with excess deaths in the home that are not covered that we're not talking about. 701 01:08:48,690 --> 01:08:59,000 So I think I think it's been interesting, the groups of people where they are and I think there's been over time a shift, 702 01:08:59,010 --> 01:09:05,350 if that's fair to say, in the dynamic of people thinking. A lot of people have been scared. 703 01:09:06,640 --> 01:09:13,270 And I think most people have been on a journey to think differently because I think early on and a lot of the media were very much like, 704 01:09:13,300 --> 01:09:16,510 oh, by November 2020, we'll be back to normal. 705 01:09:17,560 --> 01:09:23,650 And I would sit with people and we'd have a meeting with the cabinet and say that you've no chance of that. 706 01:09:24,130 --> 01:09:27,210 It's just it's not going to happen. You need to prepare for the winter. 707 01:09:27,220 --> 01:09:31,240 What's the plan for care homes, for instance? What's the plan for the low quality infections? 708 01:09:31,750 --> 01:09:33,670 What you're going to do with schools? 709 01:09:33,710 --> 01:09:40,280 You know, and I'm simple policies to them and said, well, you know, actually school holidays provide a natural social distance event. 710 01:09:40,340 --> 01:09:44,799 You could try in areas, not do it, just pilot ones. 711 01:09:44,800 --> 01:09:48,210 If you increase the Christmas holiday period, how does that buy you more time? 712 01:09:48,220 --> 01:09:52,060 What does it do? But you would pilot these things and try and we'd learn. 713 01:09:52,060 --> 01:09:56,140 But but actually we had very clear views of zero care. 714 01:09:56,380 --> 01:09:59,860 Then we were going to have certain interventions that were going to change the nature of it. 715 01:09:59,860 --> 01:10:09,909 So we're going to have MPI rules that fix all of these things, square boxes in schools where the kids would stay in social bubbles and all this. 716 01:10:09,910 --> 01:10:13,360 And I just looked at them and thought, you know, none of these have an evidence base. 717 01:10:13,360 --> 01:10:18,070 And actually many of the people out there would look at it and go, they don't even feel like common sense to me. 718 01:10:19,210 --> 01:10:23,730 The idea that after 10:00 viruses leave the pub or something just doesn't make sense. 719 01:10:24,610 --> 01:10:28,970 And so. I would put forward questions. 720 01:10:29,000 --> 01:10:34,270 A lot of the media come for me. About 80% of the work I do with the media never gets out there or gets published. 721 01:10:34,280 --> 01:10:38,180 I just help them think through the stories or what they may think or write. 722 01:10:38,600 --> 01:10:47,960 And so over time, I've created a relationship with the media and with policy that I hope people come to me because they go, 723 01:10:48,410 --> 01:10:52,640 Well, it's going to present a sort of fair opinion about where we are. 724 01:10:53,530 --> 01:11:03,359 I do not believe that any clinician's job is to overstate or overemphasise when they think, well, actually we'll just present a worst case scenario. 725 01:11:03,360 --> 01:11:07,120 I still don't quite understand how that helps anybody. And I mean, 726 01:11:07,120 --> 01:11:10,659 one of the things statements that you've made and you and Senator have made and 727 01:11:10,660 --> 01:11:17,080 the bank part of this is about the harms of the non-pharmaceutical interventions. 728 01:11:17,590 --> 01:11:24,050 Yeah, I do. Those homes have an evidence base. I think that evidence base is continuing to emerge, isn't it? 729 01:11:24,070 --> 01:11:25,030 And it will continue. 730 01:11:25,060 --> 01:11:32,110 So, for instance, when you start to say, for instance, now you're starting to see you restrict and close schools and keep children off schools, 731 01:11:32,110 --> 01:11:35,710 and then you starting to see the burden of a mental health anxiety. 732 01:11:36,040 --> 01:11:43,180 But then you start to see things like language development. And particularly I think we'll find certain age groups are more effective than others. 733 01:11:44,110 --> 01:11:46,180 And that's a huge problem. 734 01:11:46,480 --> 01:11:55,299 I think we've still seen many of the collateral damage and I think we're seeing accumulating in terms of co-morbidities and increasing alcohol, 735 01:11:55,300 --> 01:11:58,840 obesity, poor management of diseases. 736 01:11:59,050 --> 01:12:01,270 Hypertension is coming through the system. 737 01:12:01,990 --> 01:12:08,530 I think we'll be living with some of these issues for 5 to 10 years until we start to really get a grip of the whole problem. 738 01:12:09,370 --> 01:12:19,240 But I think when you define to intervene a position of equipoise, there are potential benefits and potential harm. 739 01:12:19,900 --> 01:12:24,700 There are no interventions I know of where they're just all benefit. 740 01:12:26,750 --> 01:12:33,660 Now if someone is going to say they'll probably all, but generally they are you know, maybe the seatbelt is worn, you know. 741 01:12:33,680 --> 01:12:38,060 Actually, even if you have a seat belt, you might have a low impact and duty. So some harm at low impact. 742 01:12:38,540 --> 01:12:43,430 But actually, you have to remember, there's always going to be homes. 743 01:12:44,150 --> 01:12:48,470 And the key is understanding the net benefit to home ratio of any intervention. 744 01:12:48,620 --> 01:12:55,310 And then how do you weigh up? Well, you see what people would do in a five year old's death against a child's health difficulties. 745 01:12:55,400 --> 01:12:59,360 Well, it's interesting, isn't it? Normally what you do is you ask people what they would like to do. 746 01:12:59,390 --> 01:13:02,900 I haven't until you 85 and I know what she wants to do. 747 01:13:03,170 --> 01:13:07,459 She would just say, I want to meet my grandchildren. And then only that's what you do. 748 01:13:07,460 --> 01:13:11,270 And she says, I'm prepared to take the risk because I've only got a couple of years. 749 01:13:11,540 --> 01:13:14,780 I can't put it off to 2024. 750 01:13:15,050 --> 01:13:20,180 So it's an individual risk. Why do we take that risk or benefit away from that? 751 01:13:20,180 --> 01:13:22,070 Basically saying 85, 752 01:13:22,580 --> 01:13:30,950 it's more benefit to me to see my grandchildren and the quality of life that provides than go that so that I might live another six months. 753 01:13:31,430 --> 01:13:39,140 So it's about informing. And each, as I said, each individual can come to different decisions about what they want to do, and that's okay. 754 01:13:39,290 --> 01:13:42,500 But when you decide to mandate on everybody, that's a problem. 755 01:13:42,680 --> 01:13:47,600 But that was the decision to mandate was because of, as you said yourself, 756 01:13:48,290 --> 01:13:52,250 because looking at what's happened in Italy, in the hospitals being overwhelmed. 757 01:13:52,460 --> 01:13:53,300 But I'll give you a good. 758 01:13:53,630 --> 01:14:01,550 So that I think that well, I think I'm completely with you on what you weigh but the worry of the hospitals being unable to cope, 759 01:14:01,790 --> 01:14:05,030 probably because they were under-resourced. Yeah. So that's fine. 760 01:14:05,780 --> 01:14:11,330 That's fine. But I think what happens now is every time you get to near peak infection, that re-emerges. 761 01:14:11,720 --> 01:14:16,340 So we could argue and I could argue and we wrote about this is that England has 100,000. 762 01:14:17,600 --> 01:14:26,780 I don't care. But if it's one of the lowest numbers in Europe and Germany has somewhere like 3 to 4 times as many beds. 763 01:14:26,780 --> 01:14:32,780 So they do have this problem. Although what we have is you could argue that what you need in winter and this 764 01:14:32,780 --> 01:14:37,639 has been a persistent problem for the 20 years I've been in health care. I wrote about this before is the winter crisis. 765 01:14:37,640 --> 01:14:42,370 When I came in 2000, it was it was unbelievable how bad it was. 766 01:14:42,380 --> 01:14:48,530 But generally what you need is for to deal with respiratory pathogens is about a 20% flex in your bed care number. 767 01:14:49,340 --> 01:14:55,430 And so, for instance, if you look at the number of admissions for respiratory diseases pre-COVID, 768 01:14:55,670 --> 01:14:59,720 they doubled between August and December and actually January. 769 01:14:59,990 --> 01:15:04,310 We normally have about 5000 excess deaths in January compared to August. 770 01:15:04,760 --> 01:15:11,479 And so going in, we've always had this problem of people have gone in to see grandma with a respiratory infection in January. 771 01:15:11,480 --> 01:15:17,450 Their deaths go up and that is one of the consequences of the way the winter seasonal effect works. 772 01:15:18,590 --> 01:15:22,700 So we've got a problem. But the problem that the answer is not to look down. 773 01:15:22,880 --> 01:15:26,120 The answer is to say, how do you ensure you've got extra capacity? 774 01:15:26,720 --> 01:15:30,860 Well, everybody goes in a supermarket, will know at Christmas they can deal with the extra capacity, 775 01:15:31,040 --> 01:15:36,500 the higher some seasonal workers, they put on more checkout, they bring in more stock and they prepare for it. 776 01:15:36,920 --> 01:15:42,200 But we go, no, no, no, we're not going to prepare for this natural variation in demand. 777 01:15:42,440 --> 01:15:45,440 We're just going to pretend it's not there. And if it occurs, we'll lockdown. 778 01:15:46,070 --> 01:15:46,820 Now, it's interesting. 779 01:15:47,000 --> 01:15:52,639 Wherever you've been in the world and somebody could do this piece of work, it could look at the media headlines where they've all gone. 780 01:15:52,640 --> 01:15:56,570 We're going to be we and we're going to go beyond capacity. 781 01:15:56,570 --> 01:16:03,370 Our hospitals are going to be completely overwhelmed. What if you come back four weeks later and you go, it didn't happen. 782 01:16:04,150 --> 01:16:07,270 And that's because of the Final Four. You're right in the peak of infections. 783 01:16:07,270 --> 01:16:11,110 And just as soon as you get there, they just drop off as quick as they've come in. 784 01:16:11,950 --> 01:16:15,610 And the explanation for that are just really interesting. 785 01:16:15,650 --> 01:16:20,670 But I do think you've got to trust the law that exist. 786 01:16:21,340 --> 01:16:26,409 But one is on the way up. Everybody panics, and that's why they give rise to these exponential curves. 787 01:16:26,410 --> 01:16:30,520 It's like, I think it's a bit like you're on the motorway and when you're on the motorway, 788 01:16:30,520 --> 01:16:35,680 you've come on the slip road and start speeding up, don't you? And what we watch is the data. 789 01:16:35,690 --> 01:16:43,450 So you start of 2040, you don't blink. But as you get to near the speed limit, you're acceleration slows down, doesn't it? 790 01:16:43,480 --> 01:16:50,450 And you can watch that acceleration. So you go 64, 65, 66, and once that starts happening, you know, 791 01:16:50,470 --> 01:16:56,110 you come into the peak and you're going to get to 70 and then you can flow down in a final way to come off the motorway. 792 01:16:56,560 --> 01:17:01,270 So if you watch the data really carefully, you can see when it's slowing down. 793 01:17:01,840 --> 01:17:06,880 And I've watched that movement multiple times. And that's exactly the point when everybody starts panicking. 794 01:17:08,590 --> 01:17:14,230 What the mathematical models try to say to you is actually there's no speed limit and you've got no brakes. 795 01:17:15,670 --> 01:17:20,200 And therefore this car is so dangerous, you need to do something like pull them. 796 01:17:20,200 --> 01:17:25,420 Right. But actually the river speed limit and you can watch the data very carefully. 797 01:17:25,430 --> 01:17:30,730 And that's what we do. And we did it day to day to watch not what we think it's going to be in a moment. 798 01:17:30,820 --> 01:17:33,820 Just ask a question. What does the acceleration look like? 799 01:17:34,120 --> 01:17:37,660 That's giving us a combination of immunity and behaviour change. 800 01:17:38,230 --> 01:17:41,070 It's a combination of all three. There are some things I think. 801 01:17:41,080 --> 01:17:48,250 Yeah, like now you look at it and you go, well look, the immunity, natural immunity that kicks in is I mean, 802 01:17:48,250 --> 01:17:52,540 the I would say there's been over 50 million people have been infected in England this year. 803 01:17:53,080 --> 01:17:57,010 So at some point your natural immunity kicks in. It doesn't protect you forever. 804 01:17:57,040 --> 01:18:02,829 I mean, with everyone, it seems to be even less. Yeah. But again. But again, you see, this is the bit where everybody's going. 805 01:18:02,830 --> 01:18:07,630 We've got genomic sequencing, we've got variants, and we've got this new scary thing called variants. 806 01:18:07,930 --> 01:18:13,740 But if you go back to the AMC Common Cold Unit, they did these experiments in Human Challenge Studies 25, 807 01:18:13,750 --> 01:18:18,220 30 years ago and showed exactly this with coronaviruses and rhinoviruses. 808 01:18:18,490 --> 01:18:21,130 About 50% of the people got reinfected at one year. 809 01:18:21,880 --> 01:18:28,420 And that's because, yeah, there's a natural variation in these viruses, but there's also a natural waning in your immune system. 810 01:18:29,170 --> 01:18:35,620 And so one of the arguments you've got is the idea that what we really do in societies keep topping up our immunity, 811 01:18:36,730 --> 01:18:43,890 that actually these viruses are all in competition all the time, and that interaction means that we go about our daily lives. 812 01:18:43,900 --> 01:18:49,790 But actually, if you give yourself a big break. That actually that's harmful and deleterious to. 813 01:18:51,010 --> 01:18:57,850 And you can think of that because many viruses are bad for you if you don't get them in childhood and get them another world for the first time, 814 01:18:57,850 --> 01:19:01,090 you get the cytokine storm. Really bad news for you. 815 01:19:01,360 --> 01:19:05,950 So actually what we do in childhood, and I say this as a GP is you start from ground zero. 816 01:19:06,980 --> 01:19:10,190 And I think within a lifetime, you're going to get about 200 viruses. 817 01:19:11,400 --> 01:19:17,070 But first, you know, we don't know. In a bad year, a child might have 5 to 7. 818 01:19:18,350 --> 01:19:22,730 And you as a parent are going to have a bad time, too, because you only get more viruses while your parents. 819 01:19:22,880 --> 01:19:25,990 And by the way, when you're a grandparent, you start to run in trouble again. 820 01:19:26,000 --> 01:19:30,649 But actually, it's really interesting to look at some. I mean, I think we should study these. 821 01:19:30,650 --> 01:19:34,580 There are some natural groups who have probably topped up immunity all the time. 822 01:19:34,790 --> 01:19:39,890 Primary school teachers, my sister's one. She continually gets cold, but she never gets seriously ill. 823 01:19:39,980 --> 01:19:47,090 Well, and she had to have fixed the 70 year I am feeling with weekends and you know and that natural. 824 01:19:47,240 --> 01:19:51,170 So one of the arguments was if you're interfering with if you're starting to create 825 01:19:51,170 --> 01:19:55,610 immune gaps and now the worries are what about the RSV and the influenza coming back? 826 01:19:55,730 --> 01:20:01,280 We've got this increasing susceptible population that actually will create more harm. 827 01:20:01,790 --> 01:20:09,140 Now, at this moment in time, people are watching Australia looking all they've got influenza and COVID autoimmune problems. 828 01:20:09,270 --> 01:20:17,900 That's the worry now going into winter. And I think these are interesting issues to look out to say, can you intervene in that? 829 01:20:19,580 --> 01:20:24,049 Generally, the laws of nature would say, well, if we've grown up in this way, 830 01:20:24,050 --> 01:20:29,010 in this symbiotic relationship, there must be benefits for us and there must be some potential harms. 831 01:20:29,020 --> 01:20:36,530 I agree. The interesting issue for me is I think, is what makes you fit for that viral challenge? 832 01:20:37,740 --> 01:20:43,200 We've got an older population, we've got more multimorbidity than we've ever seen and more obesity. 833 01:20:43,950 --> 01:20:47,609 So actually we've got we stood up and that's where we are in the world. 834 01:20:47,610 --> 01:20:51,420 And we haven't even thought about, well, what does it mean to have an ageing population? 835 01:20:52,050 --> 01:20:59,580 Because in the seventies you wouldn't have had the 75% of death in over 75 because they didn't exist in the same way. 836 01:20:59,970 --> 01:21:03,840 So you might have had this outbreak and then you've got there's been a funny virus circulating, 837 01:21:04,320 --> 01:21:09,780 so nobody's even thought about the challenges of having that increasing ageing population. 838 01:21:09,780 --> 01:21:14,430 And if it continues to grow, the viruses will continue to present more challenges. 839 01:21:16,250 --> 01:21:18,650 But does that mean you should lock down every time that occurs? 840 01:21:20,330 --> 01:21:28,700 I think there's a growing realisation that now the collateral effects, the economic consequences mean it's sort of off the table. 841 01:21:30,480 --> 01:21:35,850 But I'm not sure it's off the table forever, because I think some people have an appetite for restrictions. 842 01:21:38,050 --> 01:21:41,980 And some people are still in a mode where they think it's the right thing to do. 843 01:21:42,780 --> 01:21:47,690 I will continue to question the. Right. 844 01:21:47,840 --> 01:21:51,620 So I've just got some more questions about what actually know there is. 845 01:21:52,610 --> 01:21:58,160 Yeah, there is the question when you say some people. So I know there are people even within this department who disagree with you. 846 01:21:58,880 --> 01:22:10,230 How difficult is that people to deal with. Science is built on testing hypothesis and and and I actually there are two distinct things. 847 01:22:10,250 --> 01:22:18,440 I welcome people who provide criticism because it makes you think harder, work harder, and try and keep testing your hypothesis. 848 01:22:18,710 --> 01:22:25,460 It won't ultimately be me that says here's what how this is transmitted or here's how to do the test. 849 01:22:25,460 --> 01:22:30,590 It will be the evidence and the quality of the evidence, and that will inform the decision making. 850 01:22:31,100 --> 01:22:34,550 What's been difficult throughout this pandemic, though, 851 01:22:34,940 --> 01:22:43,670 is I think with the social media work and the frenzy and fear and the anxiety is with people up in making things personal. 852 01:22:45,050 --> 01:22:50,480 And that's not to say that this department just out there, this is an issue that that is now a problem in the world. 853 01:22:51,230 --> 01:22:58,370 If I don't like the message, I'm going after the messenger and I am not brought up in that way. 854 01:22:58,940 --> 01:23:05,260 I'm brought up in a family where, you know, is is the most important thing is not so much to say say. 855 01:23:06,510 --> 01:23:14,280 But never make it personal. Make it about the issue. Make it about what it means, the evidence, and how are you going to test it, how you go about it. 856 01:23:14,670 --> 01:23:23,129 But I think we live in very dangerous times because I think social media has created a frenzy and a way of trying to say, 857 01:23:23,130 --> 01:23:29,040 well, what we need to do is paint you into a firm corner, and then that will get rid of you and your viewpoint. 858 01:23:30,220 --> 01:23:35,560 But I think I'm okay with it. I mean I mean, you know, you've still got funding for your research. 859 01:23:35,560 --> 01:23:37,300 You haven't you've not been ostracised. 860 01:23:38,260 --> 01:23:45,280 I suspect there are people who don't want to work me or people in certain places who would not not want to support my work. 861 01:23:45,280 --> 01:23:55,239 But that's okay. It's more about them than me. I personally, the work we do, uh, I build my skill base. 862 01:23:55,240 --> 01:24:00,850 I can do the work. It slows me down on my own. You know, I don't need a team of 30 people, 863 01:24:00,850 --> 01:24:08,860 but I've got some really amazing collaborators and generally we've worked for decades together and these people are so good at 864 01:24:08,860 --> 01:24:16,060 what they do and we've been thinking about these issues for a long time and we'll be thinking for a long time going forward. 865 01:24:16,450 --> 01:24:22,419 There's been a lot of people who dipped in and will now dip out of this pandemic they saw as an opportunity to get involved. 866 01:24:22,420 --> 01:24:29,180 It's it's the only show in town. And they'll disappear and we'll still be publishing the evidence. 867 01:24:29,180 --> 01:24:32,870 And actually, I think what's helpful now is sort of everything's calmed down a bit. 868 01:24:34,280 --> 01:24:37,070 People are less fearful, less anxious, but in the middle of it. 869 01:24:37,370 --> 01:24:45,860 It was a bit like any challenge to the public messaging is not not you know, not acceptable and you need to be silenced. 870 01:24:46,040 --> 01:24:51,110 And we've had that. I've had that. And to be honest here, that was challenging in the middle of that. 871 01:24:51,140 --> 01:24:59,000 Very challenging. But I think I think is I think we'll see a reinvigoration of the need to have academic freedom. 872 01:24:59,660 --> 01:25:07,770 We all don't have to agree. We do have to agree, though, when the evidence is high quality and very clear about what to do next. 873 01:25:08,130 --> 01:25:12,840 And that's the most important thing about informing decisions, not what I think. 874 01:25:13,230 --> 01:25:16,110 What does the evidence tell you about making this decision? 875 01:25:17,370 --> 01:25:24,060 This is an important issue for policy because what I think a lot of people think politicians want to hear and policy makers is. 876 01:25:25,500 --> 01:25:30,930 You tell them what to do. They know that people in their lives is very opinionated. 877 01:25:31,260 --> 01:25:34,430 What they want to do. You say, Can I have a chat with you? 878 01:25:34,440 --> 01:25:42,120 Can you help me understand this? I have former prime ministers, current prime ministers talking to me, asking those questions. 879 01:25:42,240 --> 01:25:49,200 And the and and I think that carried on because I'm very clear about what we do and don't know. 880 01:25:49,500 --> 01:25:53,760 I won't step out of the market and go, I'm going to give you some outlandish to run with. 881 01:25:53,760 --> 01:26:03,230 I just go, this is what we know. Here's what you think about PCR testing, superb quality innovation though this is in this, 882 01:26:03,240 --> 01:26:10,590 but actually we could improve how we did it if we understood how to use PCR to make decisions about these infections and if we understood that better, 883 01:26:11,070 --> 01:26:14,270 we could move forward. You decide what we should do next? 884 01:26:14,750 --> 01:26:23,990 And I think that's because I also think and I think what's happening in this modern era, if people are sort of moving out of science into politics. 885 01:26:25,150 --> 01:26:30,459 And, you know, in evidence based medicine, it's a really clear, 886 01:26:30,460 --> 01:26:35,950 rational approach to the thinking, which is not been unusual for us to be controversial. 887 01:26:39,010 --> 01:26:44,620 I do. I mean, you've been a media commentator before this before all this started. 888 01:26:44,950 --> 01:26:48,069 Yeah, yeah, yeah, yeah. I have. 889 01:26:48,070 --> 01:26:54,610 And people have come to us over time. Probably the first thing we did was the metal hit scandal. 890 01:26:54,820 --> 01:26:59,470 Then we did a lot about in the Olympics about sports products and trans vaginal mesh areas where 891 01:27:00,100 --> 01:27:04,240 there were issues going on and there have been some controversial areas have been involved. 892 01:27:04,250 --> 01:27:11,469 And we did a review on the use of transgender hormone drugs for children, which was, you know, a very controversial area. 893 01:27:11,470 --> 01:27:15,370 And all we tried to say is what does the evidence say about what to do next? 894 01:27:15,520 --> 01:27:17,170 Oh, my gosh, that was so controversial. 895 01:27:17,740 --> 01:27:22,990 And generally we said, you know, in this normal situation, if we're going to use this treatment, we do it in a trial. 896 01:27:23,560 --> 01:27:27,460 So it should be research, no such thing. And that was hugely controversial. 897 01:27:28,060 --> 01:27:33,290 And and interestingly, over the time of the pandemic, I still have lots of relationships now with the media. 898 01:27:33,290 --> 01:27:38,110 In fact, this morning I was doing talk radio this morning TV and did an interview this morning. 899 01:27:39,160 --> 01:27:43,540 Should we be worried? It's a question. You know, right now cases are going up. 900 01:27:43,540 --> 01:27:44,380 Should we be worried? 901 01:27:44,920 --> 01:27:52,569 And it's interesting, a lot of people say to me, well, I wouldn't do the media maybe because message will get distorted or get twisted. 902 01:27:52,570 --> 01:27:55,780 Okay, go. Well, look, if the message is going to get there at whatever you do. 903 01:27:57,390 --> 01:28:00,530 The question is, do you want to be part of helping inform them? 904 01:28:01,140 --> 01:28:07,590 And going forward and I think over time is if it's about building a relationship in trust. 905 01:28:08,910 --> 01:28:13,709 So a lot of them might just come to me and say, can I ask you a question? There's no no benefit for me. 906 01:28:13,710 --> 01:28:16,050 But I think there's a benefit to wider society. 907 01:28:16,560 --> 01:28:22,320 If they put a report out or a publication that says, well, actually, here's what the death certificate data says. 908 01:28:22,350 --> 01:28:28,679 No, not what I think it might do. And I think that's I found that quite rewarding. 909 01:28:28,680 --> 01:28:32,220 But it also means you've got to be on top of your game. You've got to understand what's going on. 910 01:28:32,790 --> 01:28:35,790 You've got to understand the information and the evidence at any one point. 911 01:28:36,480 --> 01:28:41,360 And so if somebody comes to you and says. Are you worried about the data rise in infections? 912 01:28:41,380 --> 01:28:44,450 You have to go. Okay. Well, what would make people worried? Okay. 913 01:28:44,470 --> 01:28:48,370 Well, hospital admissions. Well, what about the intensive care admissions? 914 01:28:48,370 --> 01:28:51,760 If they were going up, that would we worried that we're going up? That would be worrying. 915 01:28:51,770 --> 01:28:57,790 So I look at all the data and I'll go, well, actually, when I look at it, although cases are going up, 916 01:28:57,790 --> 01:29:02,620 actually the death of actually come down and intensive care numbers have gone up. 917 01:29:03,040 --> 01:29:08,950 So actually, I wouldn't be that worried, but actually I'm giving you the information that can help you make a better decision. 918 01:29:09,280 --> 01:29:13,689 And yet and I think working in the media has been quite an interesting challenge. 919 01:29:13,690 --> 01:29:21,390 And you have to be thoughtful about what you say. Cause words in words can be taken out of context really quickly. 920 01:29:22,410 --> 01:29:26,160 But I think there's a lot of benefits to working in the media. 921 01:29:26,340 --> 01:29:32,550 Mm hmm. I mean, presumably you want the public to be informed and that they're not going to read your papers? 922 01:29:32,640 --> 01:29:37,440 Well, ultimately, we've done we've had projects even based in schools, and we've tried to get this off the ground. 923 01:29:37,440 --> 01:29:44,530 It's not quite work to actually work with big. Spanner in the works, if you like. 924 01:29:44,530 --> 01:29:52,130 But ultimately, I think these sorts of issues should be taught in schools and it's increasingly a little bit hidden. 925 01:29:52,480 --> 01:29:55,540 But if you don't do biology often, it's not in there for biology. 926 01:29:55,540 --> 01:30:00,160 Will talk about clinical trials, regulation and what's a drug trial and so forth. 927 01:30:00,970 --> 01:30:07,990 But actually, ultimately, everybody faces health care decisions. They even might have consent even at the age of 13 or 14. 928 01:30:07,990 --> 01:30:13,540 You've got to make decisions about all sorts of things, about HPV vaccination, very young. 929 01:30:13,540 --> 01:30:21,700 You might be thinking about all sorts of treatment. So I ultimately think we should be teaching about risk prevention, 930 01:30:22,090 --> 01:30:29,140 consent and informed decision in school for everybody ready for the world where they'll face these decisions. 931 01:30:29,710 --> 01:30:34,070 Because what happens is one day you wake up. And suddenly you might be 50. 932 01:30:34,340 --> 01:30:38,060 And somebody said, Well, we're going to do your blood pressure. Can you come in and like, well, what's that for? 933 01:30:38,270 --> 01:30:45,679 I'm a you know, now for men and women are probably with the fact that you engage much more with health care than men, 934 01:30:45,680 --> 01:30:47,660 but you get these very difficult questions. 935 01:30:48,140 --> 01:30:54,030 We cardiovascular risk is in the next ten years, it's going to be 8% chance of having a cardiovascular event. 936 01:30:54,040 --> 01:30:55,070 And you mean what's that about? 937 01:30:55,790 --> 01:31:02,540 So we have all these features that are thrust upon us and actually the require you to be pretty skilled in terms of risk prediction, 938 01:31:02,540 --> 01:31:06,709 prevention, understanding, impact, bias, all of these features. 939 01:31:06,710 --> 01:31:11,990 And I think what's happened in the Kobe pandemic is they've been forced on you in a way that people have now said, 940 01:31:11,990 --> 01:31:16,100 hold on a minute, I didn't ask for this. What actually is informing need? 941 01:31:17,020 --> 01:31:22,330 And on the bit that's been for me, I've had huge support in the public. 942 01:31:22,570 --> 01:31:31,540 I can't I can't quite say how positive it's been, whether it's I get letters, get emails on occasion, people send me things. 943 01:31:33,460 --> 01:31:38,610 My window cleaner wants to talk to me every time he comes round and said, Can I have 15 minutes of your time? 944 01:31:38,620 --> 01:31:44,140 Want to talk about COVID, please? And I'll give them 50 minutes. You know, and the public has been amazing. 945 01:31:44,230 --> 01:31:51,250 And I think the public has an appetite for understanding interventions, what it means to them. 946 01:31:54,510 --> 01:32:04,610 So you talked about your hut. Mm. So my next bit of question is what was working through the pandemic restrictions like for you? 947 01:32:04,620 --> 01:32:07,770 I mean, how easy was it to carry on doing what you were doing? 948 01:32:08,130 --> 01:32:16,260 I think, um, so I think, yeah. So I've got this hot in my back garden, which has got two computer screens and I plug my laptop in on a daily basis. 949 01:32:16,770 --> 01:32:24,060 And I have to say, I've never been as busy. I was probably working minimum 12 hours a day. 950 01:32:25,840 --> 01:32:31,139 And and that's because a combination of we were doing the review, the evidence service. 951 01:32:31,140 --> 01:32:35,040 But then I get media people saying, can we talk to you? Then we will write an article. 952 01:32:35,400 --> 01:32:41,700 We had a splurge of articles in certain journals which we knew like wrote a whole series in The Spectator, 953 01:32:42,300 --> 01:32:48,510 which had a big policy impact of all the politicians and journalists that had an inverse stop note with it. 954 01:32:48,840 --> 01:32:55,649 Well, you know, what I could find was. Yeah, so we write in spiked at the moment at the moment we move around I tend to move around 955 01:32:55,650 --> 01:33:00,510 will come back to spectator and I think it's just go through cycles with the media. 956 01:33:00,510 --> 01:33:08,190 You know it's not it's not I we we life and work gets in the way. 957 01:33:08,790 --> 01:33:15,389 You know, it's hard work to do everything and publish a piece and then and so, you know, we were having to take a day, 958 01:33:15,390 --> 01:33:21,629 a week out and we sort of work out for the evening on Friday morning and then finish it on a Saturday. 959 01:33:21,630 --> 01:33:23,760 And that was like for about for a month. 960 01:33:24,480 --> 01:33:30,540 And in the background we was also doing for about four months is a statistician here called Jason Oke, who is amazing. 961 01:33:31,260 --> 01:33:37,139 And for about four months we were producing the daily update for the media on the death on the day of reporting. 962 01:33:37,140 --> 01:33:41,490 And we put that out every day so, so never been busier. 963 01:33:41,490 --> 01:33:52,590 And and I think, I mean, combination wise as well is the urgent care setting in general practice is suffering from a lack of doctors as well. 964 01:33:52,590 --> 01:33:56,729 And so they're also calling out for people to come and work all the time. 965 01:33:56,730 --> 01:33:59,879 And so, you know, in the middle of Christmas, we we're in deep trouble. 966 01:33:59,880 --> 01:34:05,020 And so there's lots of shifts that need to cover. So never been busier. 967 01:34:05,070 --> 01:34:12,240 I think, you know, we've had this huge shift to online working we some of it's good. 968 01:34:13,270 --> 01:34:22,210 Some of it is not so good. I think we're more efficient in business meetings, but we're lacking that sort of in the corridor brainstorming moment. 969 01:34:23,350 --> 01:34:25,740 And I think there will be some good stuff. 970 01:34:25,750 --> 01:34:35,330 But I think for me I haven't still even come up for breath in about two and a half years and it's very difficult even. 971 01:34:35,760 --> 01:34:42,760 I was away last week. I'm still with work about 20 hours a week. 972 01:34:42,820 --> 01:34:50,140 Otherwise, I still did a media request and did that and don't know why I do it, but I do because it's just that. 973 01:34:50,500 --> 01:34:59,020 And I think there's still a lot to work through. And I think what you'll probably find with most researchers who are at that level, 974 01:34:59,200 --> 01:35:04,329 you just really can't let go of things because it's an evolving thought process. 975 01:35:04,330 --> 01:35:07,720 You can't go, so I'm going to park it for a month and then come back to it. 976 01:35:08,590 --> 01:35:17,649 You know, it's a thought of passion that you have for these are the issues and and here's here's how you might look at that. 977 01:35:17,650 --> 01:35:21,970 And I found that that's what defines, I think, academics in their own right. 978 01:35:22,690 --> 01:35:30,490 They only tell you, oh, 9:00 at night, I'm talking to work about why and I don't even know why, but we're still interested in these issues. 979 01:35:31,720 --> 01:35:40,440 What about coming back to the office with me where you were involved at all in the departments because of safety precautions and how. 980 01:35:40,440 --> 01:35:43,060 Well, you know, I tended to stay away. 981 01:35:43,270 --> 01:35:50,559 You know, there's you know, there's enough people living in the university to to be able to evolve and put together this sort of department. 982 01:35:50,560 --> 01:35:56,290 So I'm I think, you know, I think it will take time for people to return to normal. 983 01:35:56,290 --> 01:36:03,490 We're not there yet and probably be another year in the in that situation. 984 01:36:04,600 --> 01:36:08,470 I guess the thing we did in the middle is we did that thing where we got a dog as well. 985 01:36:08,740 --> 01:36:14,410 I guess both my girls have left the university and we got the dog and that's making it harder for me to return. 986 01:36:14,410 --> 01:36:20,830 And we've got to find a way of getting them into the department because I think that's been a real plus time interview. 987 01:36:20,830 --> 01:36:23,920 Somebody in her office with a dog. Yeah, not in this department. 988 01:36:23,950 --> 01:36:28,479 Well, I think I'm a big a big I mean, that's the most important learning point. 989 01:36:28,480 --> 01:36:32,950 Wherever you are, if you've got to even stay in the moment, you've still got to look after yourself. 990 01:36:32,950 --> 01:36:36,340 You've got to be out there. So, you know, I'm working long days, but I'm still out. 991 01:36:36,580 --> 01:36:41,140 I walk that out for an hour, I look after myself. And I think you've got to do the things. 992 01:36:42,060 --> 01:36:48,510 Where you just take that bit of time out to keep keep yourself fine, if you will. 993 01:36:50,070 --> 01:36:53,399 I don't know where the future will lie in terms of where we go next, 994 01:36:53,400 --> 01:37:00,930 but I think there will be significant changes as a result because I think more people want to work from home and a hybrid well from this point on. 995 01:37:01,320 --> 01:37:06,180 And I think that will have a significant impact. And that's how you able to behave in a way. 996 01:37:06,180 --> 01:37:14,040 That's one of the key things where we talked about it. Where can you change what happens next with minimal impact on society? 997 01:37:15,210 --> 01:37:19,350 Well, actually, asking people to work from home for a couple of weeks is not a big problem because, 998 01:37:19,350 --> 01:37:25,920 you know, we've just seen it happen with the rail strike. So there's the way you should be thinking about when you do restrictions, 999 01:37:26,400 --> 01:37:30,690 what can you do that actually doesn't really alter the fabric of everybody's life? 1000 01:37:30,710 --> 01:37:34,830 We'll get to the bit of effect. So I think slowing down what's going to happen next. 1001 01:37:35,930 --> 01:37:40,280 Schools, for instance, could give you an extra week on holiday and get them to do their exams from home. 1002 01:37:40,340 --> 01:37:47,120 Well, that wouldn't be a big deal. So are you looking for those little bits that can just subtly gain you a bit of time? 1003 01:37:47,840 --> 01:37:51,140 And I think that's where we should be smarter going forward in the future. 1004 01:37:51,990 --> 01:37:56,020 Mm. Yeah. 1005 01:37:56,030 --> 01:38:00,640 I think I got the last one, so. I think it can be a long answer. 1006 01:38:00,660 --> 01:38:08,100 We've got time. Mm hmm. Has the experience of working through COVID changed your attitude to your approach to your work? 1007 01:38:08,100 --> 01:38:10,530 And how would you like to see things change in the future? 1008 01:38:11,310 --> 01:38:20,910 You know, I think I think having it certainly changed it for me, my position in terms of media profile and out there. 1009 01:38:21,300 --> 01:38:25,950 I mean, I couldn't imagine it would have happened in this way and it still happens today. 1010 01:38:25,980 --> 01:38:31,590 It's been interesting to me and a lot of people come and go in that media journey and profile and policy journey. 1011 01:38:31,950 --> 01:38:40,380 But actually, for me, I'm still there. And I think that I'll stick to the evidence based approach with I'm going to write more. 1012 01:38:41,160 --> 01:38:45,780 We took a particular position. You know, I've published enough. 1013 01:38:45,960 --> 01:38:52,230 I still published in journals, but actually the days of writing an editorial that have impact, I think have gone. 1014 01:38:53,580 --> 01:39:00,560 But actually, if you write a piece in the newspaper and suddenly a million people read it, you can have a significant impact. 1015 01:39:00,570 --> 01:39:05,790 And in a way that is radically different to anything I've done in the editorial world. 1016 01:39:06,360 --> 01:39:14,190 And I think I've enjoyed the challenge of trying to write to the public or write to a wider audience is not either. 1017 01:39:15,120 --> 01:39:20,370 You'll get your people who won't like what you say when you do that, and you have to have your flak jacket on ready. 1018 01:39:20,940 --> 01:39:26,970 But actually, that, I think, is where the future lies, is for scientists to be more. 1019 01:39:28,010 --> 01:39:33,980 Communicating with the wider public, put their ideas out there and try and justify them. 1020 01:39:34,490 --> 01:39:40,280 And if we do that well, I think there'll be a better, healthier society. 1021 01:39:41,750 --> 01:39:46,489 And so I'll keep doing that. And I think in terms of the workload, 1022 01:39:46,490 --> 01:39:52,670 I think with the team I'm very mindful we're an outcome orientated unit and I think we will be more hybrid in the future. 1023 01:39:54,650 --> 01:40:01,730 Are our courses are going more online because we one of the things we didn't talk about is our master's in evidence based healthcare. 1024 01:40:02,120 --> 01:40:05,870 We have to completely flip it to an online strategy. 14 days. 1025 01:40:07,190 --> 01:40:11,210 That's pretty stressful as well. And but the team did an amazing job. 1026 01:40:11,700 --> 01:40:18,290 But now we've used it. We've just got approval from Education Policy Committee to increase the number of 1027 01:40:18,410 --> 01:40:24,110 courses that can be taken online so students don't have to come here as much. 1028 01:40:24,110 --> 01:40:29,330 And we think that's a sensible strategy in the middle of winter. It will be difficult to travel if you're well. 1029 01:40:30,260 --> 01:40:34,860 But also next week, we're all in a summer school for all the students, as about 45 coming next week. 1030 01:40:34,940 --> 01:40:41,750 So we're changing the strategy. We think they still want that in the corridor moment and there's a big appetite for that to come to Oxford. 1031 01:40:41,960 --> 01:40:51,320 But they may change the nature of when they do and what suits them. So the flip side is, I still think there's a lot of issues to work through. 1032 01:40:52,340 --> 01:40:58,910 There's a lot of things to think through in terms of the backlog now of homes, you know, 1033 01:40:59,330 --> 01:41:04,260 whether it's cancer care and diagnostics, whether it's mental health, whether it's social care. 1034 01:41:04,280 --> 01:41:11,060 We've got huge problems. And I think they're going to require a lot of astute thinking going forward. 1035 01:41:13,420 --> 01:41:16,630 Pete. What? Hate.