WEBVTT 00:01.560 --> 00:06.750 Prof: Our topic this morning is influenza, 00:06.745 --> 00:09.765 which is timely for today. 00:09.770 --> 00:13.910 And I'd like to begin by talking about influenza virus 00:13.906 --> 00:17.396 more in general, and we'll concentrate our 00:17.403 --> 00:20.233 attention, for obvious reasons, 00:20.227 --> 00:25.337 on the Spanish Lady, the great influenza of 00:25.336 --> 00:26.866 1918,1919. 00:26.870 --> 00:31.840 Now, influenza virus was isolated in the 1930s by 00:31.840 --> 00:37.330 Andrews, Wilson and Laidlaw, and the mechanisms of the 00:37.329 --> 00:41.989 disease were then unraveled subsequently. 00:41.990 --> 00:44.670 As you know, there are three types, 00:44.668 --> 00:49.158 A, B and C, and it's A virus that's the cause of pandemics 00:49.158 --> 00:50.968 among human beings. 00:50.970 --> 00:55.210 In terms of the structure of the virus, 00:55.210 --> 01:00.670 as you know, it's RNA, wrapped in a protein 01:00.670 --> 01:04.690 envelope, with protein spikes on the 01:04.685 --> 01:09.425 surface-- you can see them--and the 01:09.427 --> 01:16.567 spikes are of two major types: hemagglutinin and 01:16.566 --> 01:19.146 neuraminidase. 01:19.150 --> 01:24.750 The hemagglutinin enables the virus to attach itself to a host 01:24.754 --> 01:27.944 cell, in this case in the respiratory 01:27.938 --> 01:31.058 tract, and it's neuraminidase that 01:31.060 --> 01:35.210 enables the fusion of the virus with cells, 01:35.209 --> 01:40.169 so that the viral RNA can be released into the cell's 01:40.173 --> 01:44.853 cytoplasm and then migrate to the cell nucleus. 01:44.849 --> 01:48.629 The hemagglutinin and neuraminidase have various 01:48.626 --> 01:53.406 strains that have been numbered, and you have on your handout 01:53.406 --> 01:57.126 those that have been identified for the nineteenth, 01:57.129 --> 01:59.519 twentieth and twenty-first century. 01:59.519 --> 02:04.249 And everyone knows now H1N1, the swine virus that's 02:04.248 --> 02:06.138 currently with us. 02:06.140 --> 02:10.160 And I'm sorry on the handout that I've got 2010; 02:10.159 --> 02:13.659 I meant to have 2009 to 2011. 02:13.658 --> 02:17.548 So, if you could make that correction, that would make me 02:17.546 --> 02:18.446 feel happy. 02:18.449 --> 02:25.199 The viral RNA then hijacks the cell and transforms it into a 02:25.200 --> 02:30.120 viral factory for the reproduction of virus, 02:30.121 --> 02:35.501 and it eventually destroys the cell itself. 02:35.500 --> 02:39.890 This process of reproduction is extraordinarily efficient, 02:39.889 --> 02:44.859 and nearly instantaneous, so that the idea of measuring 02:44.855 --> 02:49.635 generations of viruses begins to lose all meaning. 02:49.639 --> 02:54.619 We also need to point out, about influenza virus, 02:54.620 --> 02:58.440 that the RNA combines in all sorts of ways, 02:58.440 --> 03:04.070 making a genetic characteristic of extreme instability, 03:04.069 --> 03:06.909 or should we say mutability. 03:06.908 --> 03:10.428 The processes involved, that you can study up on 03:10.427 --> 03:15.957 Science Hill in more detail, involve things called antigen 03:15.955 --> 03:18.435 drift, antigen shift, 03:18.438 --> 03:24.138 mutation, hybridization, giving rise to subtypes, 03:24.143 --> 03:26.653 strains and variants. 03:26.650 --> 03:31.940 All of these changes are part of the success story of 03:31.935 --> 03:36.805 influenza as a disease, and there is no crossover 03:36.813 --> 03:40.883 immunity from one strain to another; 03:40.878 --> 03:46.058 acquired immunity, that is, is strain specific. 03:46.060 --> 03:51.580 Well, mutability also explains an epidemiological feature of 03:51.583 --> 03:56.203 influenza, and that is that pandemics tend 03:56.198 --> 04:00.268 to arrive in waves, each being biologically 04:00.270 --> 04:03.890 different, with different symptoms and different 04:03.889 --> 04:04.889 virulence. 04:04.889 --> 04:10.109 And we'll see that the great pandemic, after World War I, 04:10.114 --> 04:12.264 had four major waves. 04:12.258 --> 04:20.028 Well, influenza tends to be reflective of the relationships 04:20.033 --> 04:24.863 also of human beings and animals-- 04:24.860 --> 04:30.450 birds, horses and pigs--in that there's interspecies transfer 04:30.447 --> 04:35.347 from animals to humans, and from humans in the reverse 04:35.350 --> 04:36.260 direction. 04:36.259 --> 04:39.969 And this may be the route by which human beings first 04:39.966 --> 04:43.876 contracted the disease, and it's known that this, 04:43.877 --> 04:49.807 the animal reservoir, is a source of new strains. 04:49.810 --> 04:55.030 The hypothesis recently has been that there's a reservoir in 04:55.033 --> 04:58.843 Asia, perhaps in China or Asiatic Russia. 04:58.839 --> 05:02.729 But interestingly, it's that very hypothesis that 05:02.732 --> 05:07.352 misled public health responses when the swine flu pandemic 05:07.353 --> 05:12.303 first got underway, in that surveillance was active 05:12.300 --> 05:18.010 in the Far East but the disease arrived instead in Mexico. 05:18.009 --> 05:22.809 What's the history of human beings and influenza? 05:22.810 --> 05:26.000 The origins simply aren't known. 05:26.000 --> 05:29.970 The earliest clear evidence, of a literary kind, 05:29.966 --> 05:33.846 is in the fifteenth and sixteenth centuries. 05:33.850 --> 05:38.080 But records are fragmentary and unreliable. 05:38.079 --> 05:42.979 So, the best we can do is to look at the last few centuries; 05:42.980 --> 05:45.870 the eighteenth, nineteenth, twentieth, 05:45.867 --> 05:49.067 and the first years of our own century. 05:49.069 --> 05:56.359 In the eighteenth century, there were major pandemics: 05:56.360 --> 06:01.180 1729 to '30, '32 to '33, '61 to '62, 06:01.175 --> 06:09.425 and then especially 1781 to 1782, and then 1788 to 1789. 06:09.430 --> 06:15.530 In the nineteenth century there were pandemics 1830 to '31, 06:15.526 --> 06:20.356 '33, '50 to '51, and then the great pandemic of 06:20.362 --> 06:22.152 1889 to 1890. 06:22.149 --> 06:27.139 And in the twentieth century we've had a number of pandemics, 06:27.142 --> 06:31.322 the greatest being 1918 to '20; the Spanish Flu, 06:31.319 --> 06:32.929 as it was called. 06:32.930 --> 06:37.490 Now, the reason I was reading out the rather grim years of 06:37.490 --> 06:41.170 influenza pandemics was to point out first, 06:41.170 --> 06:45.140 of course, that they're recurrent and are still with us, 06:45.139 --> 06:48.609 as you know, but also to note that there 06:48.607 --> 06:53.407 seemed to be something of a pattern of more or less one 06:53.408 --> 06:56.608 major pandemic in every century. 06:56.610 --> 07:02.140 Well, influenza is a viral infection transmitted person to 07:02.144 --> 07:04.954 person; an airborne disease, 07:04.947 --> 07:10.827 much more contagious than say SARS, that we remember from just 07:10.827 --> 07:12.657 a few years ago. 07:12.660 --> 07:17.310 SARS requires prolonged face-to-face contact, 07:17.307 --> 07:19.417 but not influenza. 07:19.420 --> 07:23.960 So, a notable feature then of the flu is its rapid 07:23.961 --> 07:25.631 communicability. 07:25.629 --> 07:30.549 It also has a short incubation period, just twenty-four to 07:30.545 --> 07:32.265 seventy-two hours. 07:32.269 --> 07:37.879 All of that implies also that epidemiologically it's different 07:37.884 --> 07:43.134 from a number of the infectious diseases we've studied. 07:43.129 --> 07:48.779 As I said in the email that I sent to you about social 07:48.779 --> 07:52.029 diseases, it's really a spectrum, 07:52.033 --> 07:55.563 not an absolute, when we talk about being a 07:55.564 --> 07:57.324 social disease or not. 07:57.319 --> 08:02.619 And I would submit to you that influenza is at the far end of 08:02.620 --> 08:06.420 that spectrum, in not really being a classic 08:06.420 --> 08:08.100 social disease. 08:08.100 --> 08:14.340 It's not very sensitive to economic conditions, 08:14.336 --> 08:19.726 sanitation and diet; those features that were 08:19.730 --> 08:24.150 hallmarks of malaria, say, or tuberculosis. 08:24.149 --> 08:30.519 Its diffusion occurs wherever human beings move in numbers and 08:30.516 --> 08:31.556 breathe. 08:31.560 --> 08:34.890 It follows networks of communication: 08:34.890 --> 08:39.240 railroads, steamships, airplanes in our time; 08:39.240 --> 08:44.060 and ports and railroad hub cities, or now we would say 08:44.062 --> 08:48.162 airport centers, tend to be foci of infection, 08:48.158 --> 08:52.708 and were first attacked with lightening speed. 08:52.710 --> 08:57.190 So, flu was favored by the transportation technology of the 08:57.187 --> 09:02.687 industrial revolution and since, and once again by urbanization, 09:02.691 --> 09:07.211 and of course population growth and overcrowding. 09:07.210 --> 09:13.390 Let's look at a precursor to the great pandemic of the First 09:13.394 --> 09:18.644 World War, and this is the horrible pandemic of the 09:18.635 --> 09:22.825 nineteenth century, of 1889 to 1890. 09:22.830 --> 09:27.490 This was the first truly global pandemic of influenza, 09:27.485 --> 09:32.665 and the most devastating one in history, until that time. 09:32.669 --> 09:35.679 It affected every continent. 09:35.678 --> 09:40.328 The reasons were that the world was prepared now for pandemic 09:40.331 --> 09:42.681 influenza, as a result of the 09:42.678 --> 09:46.548 transportation revolution-- the railroad and the 09:46.552 --> 09:49.782 steamship--urbanization and trade, 09:49.779 --> 09:53.919 demographic growth and colonialism. 09:53.918 --> 09:59.138 Vulnerability to influenza then seems to be, in part, 09:59.135 --> 10:04.545 a byproduct of modernization, as we've been reminded by 10:04.553 --> 10:06.363 recent events. 10:06.360 --> 10:13.890 Studies of 1889 to 1890 demonstrate this in more detail. 10:13.889 --> 10:17.889 In cities like Moscow, Paris or London, 10:17.890 --> 10:24.000 the first cases occurred in October to November of 1889. 10:24.000 --> 10:25.950 And these tended not to be noticed; 10:25.950 --> 10:31.840 there was nothing particular about them that people noted at 10:31.841 --> 10:32.941 the time. 10:32.940 --> 10:37.210 But they occurred among very particular sectors of the 10:37.214 --> 10:40.684 population that were most involved in trade, 10:40.681 --> 10:44.231 commerce and the nodes of communication; 10:44.230 --> 10:49.890 that is, the first people to fall ill tended to be dockers or 10:49.889 --> 10:52.909 post-office workers, railway men, 10:52.908 --> 10:54.228 policemen. 10:54.230 --> 10:58.060 Furthermore, the less industrialized the 10:58.057 --> 11:02.867 locality, the more remote and agricultural it was, 11:02.868 --> 11:08.168 the later and less severely the locality suffered. 11:08.168 --> 11:13.378 In 1889 to 1890, the Alps in Europe, 11:13.379 --> 11:17.659 Italy, Spain and Portugal, all lagged behind Northern 11:17.663 --> 11:22.373 Europe and the United States, and even in the great urban 11:22.374 --> 11:26.844 centers there were isolated, small communities that 11:26.840 --> 11:30.670 sometimes survived entirely unscathed; 11:30.668 --> 11:34.128 monasteries and convents, for example, 11:34.125 --> 11:39.355 in both Moscow and Paris experienced the pandemic without 11:39.356 --> 11:41.876 victims, in some cases. 11:41.879 --> 11:47.619 And this was sometimes true also of closed institutions like 11:47.616 --> 11:48.586 prisons. 11:48.590 --> 11:51.580 Then typically, after following the 11:51.578 --> 11:57.208 transportation network--and this was true of 1889 to '90--the flu 11:57.206 --> 12:01.686 spread along what's called the urban hierarchy; 12:01.690 --> 12:07.320 that is, it went first to major cities, and from there into the 12:07.315 --> 12:12.025 hinterland of those cities, and only later to smaller 12:12.033 --> 12:15.303 towns, villages and rural areas. 12:15.298 --> 12:18.808 And 1918 to '19, in the United States, 12:18.806 --> 12:23.796 shows this same pattern; that is, the flu went almost 12:23.796 --> 12:28.936 instantaneously from Boston and New York to Cincinnati, 12:28.940 --> 12:32.260 Chicago, New Orleans, Detroit, San Francisco, 12:32.259 --> 12:38.469 Seattle, and then at greater leisure it moved into almost 12:38.466 --> 12:43.336 every place in between, until there was hardly a 12:43.342 --> 12:47.832 settlement of any size that had been entirely spared. 12:47.830 --> 12:51.030 Wherever it went, rich and poor, 12:51.029 --> 12:54.949 educated and illiterate, men and women, 12:54.951 --> 13:01.351 the physically fit and the unfit, were similarly infected. 13:01.350 --> 13:04.720 But there were circumstances, certain ones, 13:04.719 --> 13:08.569 that were especially favorable to the disease. 13:08.570 --> 13:14.130 A crowded urban environment was clearly one, 13:14.129 --> 13:18.269 where people were streaming in and out, 13:18.269 --> 13:21.499 in closely packed milieus: schools, 13:21.500 --> 13:24.350 theaters, barracks, naval ships, 13:24.347 --> 13:29.567 tenement buildings, college dormitories. 13:29.570 --> 13:34.940 In all the epidemics of influenza, except 1918 to '20, 13:34.942 --> 13:40.212 there was also a strong predilection of the influenza 13:40.211 --> 13:44.471 virus for the infants and the elderly. 13:44.470 --> 13:49.360 There also tended to be an over-representation of people 13:49.356 --> 13:53.086 with pre-existing respiratory diseases-- 13:53.090 --> 13:57.450 say tuberculosis or bronchitis--or people with 13:57.450 --> 14:00.260 immunosuppressive diseases. 14:00.259 --> 14:04.199 The great example, until the HIV/AIDS era, 14:04.202 --> 14:08.442 was, of course, malaria, and malarial victims 14:08.436 --> 14:12.376 were highly susceptible to influenza. 14:12.379 --> 14:18.959 So, the tubercular and the malarial died massively during 14:18.956 --> 14:21.536 influenza pandemics. 14:21.538 --> 14:28.568 A typical graph then of the influenza mortality would show a 14:28.568 --> 14:33.568 neat U-shaped curve, spiked at both ends of the age 14:33.567 --> 14:39.907 spectrum of the population, the very young and the elderly. 14:39.908 --> 14:44.338 Another common feature of influenza pandemics was 14:44.335 --> 14:46.635 pronounced seasonality. 14:46.639 --> 14:51.089 In the Northern Hemisphere, influenza almost invariably 14:51.086 --> 14:55.576 peaked in the winter months, November to February, 14:55.581 --> 15:00.851 and ended with the coming of warm weather in the spring. 15:00.850 --> 15:04.920 The reasons for--good epidemiological explanations 15:04.923 --> 15:08.253 have to do partly with human behavior. 15:08.250 --> 15:12.220 People tend to congregate indoors in the winter, 15:12.215 --> 15:17.105 often in buildings and rooms that are poorly ventilated. 15:17.110 --> 15:21.150 The virus itself doesn't survive well in an environment 15:21.153 --> 15:24.453 where there's sunlight and high humidity, 15:24.450 --> 15:29.960 and winter is a time when people tend to sneeze and cough 15:29.955 --> 15:32.605 more than at other times. 15:32.610 --> 15:35.900 What are some other features of flu pandemics? 15:35.899 --> 15:37.799 One is short duration. 15:37.798 --> 15:41.628 This helps to understand societal responses as well. 15:41.629 --> 15:46.489 We know that plague and cholera tended to lay siege to a 15:46.485 --> 15:50.715 locality for months, and in the community it felt 15:50.724 --> 15:52.494 quite like that. 15:52.490 --> 15:59.450 But flu tended to last just a few weeks, and then to move on. 15:59.450 --> 16:04.150 It was true also that there was a high morbidity--that is, 16:04.148 --> 16:09.088 lots of people would fall ill from influenza--but there was a 16:09.094 --> 16:11.324 low case fatality rate. 16:11.320 --> 16:16.560 The overall mortality would be large simply because of the 16:16.556 --> 16:19.216 large numbers of sufferers. 16:19.220 --> 16:22.850 The kill rate was low. 16:22.850 --> 16:27.240 In the nineteenth century, influenza, however, 16:27.240 --> 16:32.710 killed far more people than cholera, and a stark contrast 16:32.706 --> 16:35.046 then could be drawn. 16:35.048 --> 16:39.278 Flu seems to be quintessentially a contagious 16:39.278 --> 16:40.238 disease. 16:40.240 --> 16:43.510 But since you're interested in the debate between-- 16:43.509 --> 16:45.879 this is one of your favorites, I'm sure-- 16:45.879 --> 16:50.349 between anticontagionism and contagionism, 16:50.350 --> 16:54.750 we might point out to you that even although you think it seems 16:54.751 --> 16:57.381 to be self-evident that influenza, 16:57.379 --> 17:02.309 the grippe, the flu is contagious, that many of the, 17:02.308 --> 17:07.078 in fact the dominant current, still in the 1890s, 17:07.078 --> 17:10.678 was that influenza was not contagious. 17:10.680 --> 17:13.950 And the eminent British epidemiologist, 17:13.951 --> 17:18.091 Charles Creighton, still held to anticontagionism 17:18.086 --> 17:22.216 regarding this disease, down into the 1890s. 17:22.220 --> 17:27.980 Well, what sorts of things held Creighton back from accepting 17:27.978 --> 17:31.528 influenza as an infectious disease? 17:31.528 --> 17:36.048 First he argued the disease would affect most parts of a 17:36.049 --> 17:39.419 country in the same two or three weeks. 17:39.420 --> 17:44.980 There simply wasn't time for a contagious disease to spread 17:44.984 --> 17:48.924 with that extreme rapidity, he thought. 17:48.920 --> 17:52.630 He also thought within a smaller radius it seemed to 17:52.632 --> 17:55.182 affect everyone, say in a household, 17:55.180 --> 17:57.510 more or less simultaneously. 17:57.509 --> 18:00.339 Everyone would fall ill at once. 18:00.338 --> 18:04.568 So, it seemed there wasn't time for contagion. 18:04.568 --> 18:09.048 And it was this simultaneous, sudden outbreak of influenza 18:09.046 --> 18:12.576 that gave it some of its traditional names. 18:12.579 --> 18:16.009 It was called the grippe; not only in French, 18:16.009 --> 18:18.819 la grippe, but also in English in the 18:18.818 --> 18:22.148 nineteenth century it was referred to as grippe. 18:22.150 --> 18:26.440 And partly that's because it seemed suddenly to seize people 18:26.439 --> 18:27.529 in its grasp. 18:27.528 --> 18:31.458 Typically, you could be healthy at breakfast, 18:31.457 --> 18:35.917 only to find yourself suffering with chills, fever, 18:35.920 --> 18:39.580 aching bones and nausea by lunchtime. 18:39.578 --> 18:43.058 Similarly, Moscow seemed, to physicians, 18:43.057 --> 18:46.977 to be healthy on the first of November, 1889, 18:46.980 --> 18:52.510 but by the middle of the month the disease was everywhere. 18:52.509 --> 18:57.209 Shops and schools were closed, commerce nearly ground to a 18:57.211 --> 18:57.791 halt. 18:57.788 --> 19:02.458 And this gave it--was part of the reason it got its other 19:02.459 --> 19:03.959 name, influenza. 19:03.960 --> 19:08.240 This was an Italian word meaning influence, 19:08.240 --> 19:12.850 and in this case people speculated about the influence 19:12.852 --> 19:18.512 of some cosmic factor that would disturb the microcosm as well. 19:18.509 --> 19:24.009 Perhaps it was the influence of the stars or the heavens that 19:24.010 --> 19:28.870 poisoned or corrupted the atmosphere and lay low whole 19:28.871 --> 19:30.981 cities all at once. 19:30.980 --> 19:35.950 What about symptoms, effects on the individual? 19:35.950 --> 19:40.180 I think we can be brief, because it's probably very 19:40.178 --> 19:43.898 familiar to you, from personal experience; 19:43.900 --> 19:47.310 that is, seasonal influenza. 19:47.308 --> 19:51.918 The onset, as we've said, is normally sudden. 19:51.920 --> 19:57.640 The symptoms then are ones that you know: a high fever, 19:57.642 --> 20:02.202 100 to 104 degrees Fahrenheit, typically; 20:02.200 --> 20:08.190 an unproductive cough; aching of muscles in the back, 20:08.186 --> 20:11.536 the legs; watery eyes; 20:11.539 --> 20:16.839 sometimes nausea and vomiting; general malaise; 20:16.839 --> 20:19.239 headache; pain in the joints; 20:19.240 --> 20:25.130 sometimes dizziness; and a general sense of fatigue 20:25.125 --> 20:26.915 and weakness. 20:26.920 --> 20:31.910 Typically the acute phase would last three to five days, 20:31.907 --> 20:37.347 and for a few days more you'd suffer from your cough and from 20:37.349 --> 20:38.529 lethargy. 20:38.529 --> 20:44.919 And then, in the vast number of cases, there would be recovery. 20:44.920 --> 20:51.160 Flu, for young adults in good health, enjoyed a reputation as 20:51.159 --> 20:56.669 a nasty but mercifully short, and usually not serious, 20:56.670 --> 20:58.230 affliction. 20:58.230 --> 21:02.210 Influenza in the middle of the nineteenth century-- 21:02.210 --> 21:08.900 that is, at least before the cataclysm of 1889 and 1890-- 21:08.900 --> 21:13.870 was--people joked about it, that it was a disease that was 21:13.872 --> 21:18.672 so unimportant that the only physicians who gave it much 21:18.670 --> 21:23.730 attention were those who simply had too few patients, 21:23.730 --> 21:29.200 and so started treating people with flu as a means of enhancing 21:29.204 --> 21:30.534 their income. 21:30.528 --> 21:33.468 On the other hand, for infants, 21:33.468 --> 21:37.968 for the elderly and those with chronic disease, 21:37.973 --> 21:43.953 it sometimes led to serious and even fatal complications; 21:43.950 --> 21:48.660 and it was the complications, much more than the flu, 21:48.664 --> 21:50.664 that tended to kill. 21:50.660 --> 21:56.340 Patients who didn't recover after three or four days then 21:56.343 --> 22:01.423 moved on to serious complications like pneumonia or 22:01.416 --> 22:02.936 bronchitis. 22:02.940 --> 22:08.110 And about once a century, a strain of influenza that was 22:08.114 --> 22:11.694 not seasonal but pandemic appeared, 22:11.690 --> 22:15.190 and demonstrated that flu can in fact, 22:15.190 --> 22:19.880 under certain conditions, be one of the most deadly of 22:19.882 --> 22:21.212 all diseases. 22:21.210 --> 22:24.620 Well, what about treatment? 22:24.618 --> 22:29.678 Today, as in the past, there's no specific remedy for 22:29.675 --> 22:35.115 influenza, as we've been reminded by recent events in the 22:35.121 --> 22:36.581 newspapers. 22:36.578 --> 22:42.168 The disease is self-limiting normally, and simply runs its 22:42.166 --> 22:43.046 course. 22:43.048 --> 22:49.168 So, therapy is supportive and symptomatic, rest and nursing 22:49.166 --> 22:54.016 care, more than active medical intervention. 22:54.019 --> 22:58.009 In the nineteenth century this was also recognized, 22:58.012 --> 23:02.332 and physicians weren't inclined to try heroic remedies, 23:02.325 --> 23:05.595 as they did say with Asiatic cholera. 23:05.598 --> 23:10.328 But there were certain attempts at therapeutics in the 23:10.326 --> 23:15.036 nineteenth century, and even after World War I 23:15.038 --> 23:20.928 people were given aspirin, cinnamon with milk to lower 23:20.930 --> 23:25.160 temperature, fluids and nourishment, 23:25.161 --> 23:26.341 bed rest. 23:26.338 --> 23:30.528 Quinine was administered to lower the fever. 23:30.528 --> 23:34.078 There were warm baths for hydrotherapy; 23:34.078 --> 23:39.128 oxygen sometimes administered to patients with respiratory 23:39.131 --> 23:40.551 complications. 23:40.548 --> 23:46.068 And some physicians recommended caffeine to raise the flagging 23:46.065 --> 23:49.135 animal energy, as it was called. 23:49.140 --> 23:53.480 Today the only actual therapeutics is antibiotics, 23:53.484 --> 23:57.214 but they don't combat the influenza itself, 23:57.210 --> 24:00.580 but its complication of pneumonia. 24:00.578 --> 24:05.068 Well, against that background, let's look more closely at the 24:05.067 --> 24:08.127 Spanish influenza-- the Spanish Lady, 24:08.134 --> 24:13.464 the Spanish grippe, as it was called--from 1918 to 24:13.462 --> 24:14.162 1920. 24:14.160 --> 24:18.980 Well, first you'll probably wonder, why this Spanish 24:18.984 --> 24:20.314 association? 24:20.308 --> 24:25.438 And the reason has actually nothing to do with Spain itself 24:25.441 --> 24:26.681 and disease. 24:26.680 --> 24:30.950 It was simply that Spain was not a belligerent in the First 24:30.945 --> 24:35.575 World War, and therefore was free of censorship of the media. 24:35.578 --> 24:40.988 Hence a free press reported the medical crisis there 24:40.992 --> 24:42.482 extensively. 24:42.480 --> 24:48.880 A popular theory in circulation these days is that perhaps the 24:48.880 --> 24:53.390 Spanish Lady originated not in Spain at all, 24:53.391 --> 24:55.281 but in Kansas. 24:55.279 --> 24:59.669 In any event, on the morning of--finding the 24:59.666 --> 25:04.526 case zero is a perilous art, but let's say that at least 25:04.534 --> 25:07.884 this much is known-- on the morning of the eleventh 25:07.878 --> 25:11.038 of March, 1918, at Fort Riley, 25:11.039 --> 25:16.709 the cook, Albert Gitchell, reported sick. 25:16.710 --> 25:21.900 By noon, the camp infirmary had some 100 cases, 25:21.895 --> 25:27.865 and these were the earliest known examples of this new 25:27.871 --> 25:29.451 influenza. 25:29.450 --> 25:34.520 There's some background that helps us comprehend the 25:34.515 --> 25:38.185 extraordinary case of 1918 to 1920. 25:38.190 --> 25:41.740 As in the past, mutations occurred, 25:41.737 --> 25:47.887 and in this time produced a new strain that turned out to be 25:47.893 --> 25:53.113 more virulent than any in influenza's history. 25:53.108 --> 25:57.178 Its mode of communication was identical to other flu 25:57.179 --> 26:01.969 pandemics, but its effects on both the individual and society 26:01.965 --> 26:04.275 were radically different. 26:04.278 --> 26:09.028 So, let's talk about this pandemic as coming in four 26:09.034 --> 26:09.784 waves. 26:09.778 --> 26:17.048 The first was in the spring of 1918, and was relatively mild, 26:17.046 --> 26:19.586 in March and April. 26:19.588 --> 26:23.148 It soon passed, and it attracted little 26:23.153 --> 26:24.283 attention. 26:24.278 --> 26:28.118 Wartime press censorship was partly a factor, 26:28.118 --> 26:33.408 but people were simply preoccupied with the war and not 26:33.413 --> 26:38.813 with the presence of a mild outbreak of a well-known and 26:38.807 --> 26:40.667 common disease. 26:40.670 --> 26:48.900 The second wave was the fall of 1918, which was the worldwide 26:48.900 --> 26:50.410 disaster. 26:50.410 --> 26:55.540 It began in August with simultaneous explosions in 26:55.542 --> 27:01.722 places as far apart as Sierra Leone, Boston in this country, 27:01.723 --> 27:05.953 Brest in France; a common feature being that 27:05.952 --> 27:10.302 these were all port cities, and had an important role in 27:10.298 --> 27:13.458 the movements of troops and supplies. 27:13.460 --> 27:17.000 In this case, one could argue that not only 27:17.000 --> 27:20.710 the war itself, but also the coming of peace, 27:20.711 --> 27:24.171 contributed to the spread of the flu. 27:24.170 --> 27:30.100 Armistice Day itself produced huge crowds and gatherings, 27:30.102 --> 27:35.932 which were not propitious for stopping the spread of the 27:35.928 --> 27:37.198 disease. 27:37.200 --> 27:42.880 Then came the spring of 1919, a less, much less, 27:42.882 --> 27:46.512 mercifully less severe wave. 27:46.509 --> 27:50.649 And then finally January, February of 1920, 27:50.652 --> 27:55.682 the fourth wave of the Spanish Lady, which was mild, 27:55.682 --> 27:59.432 and limited in its morbidity even. 27:59.430 --> 28:03.610 Partly, of course, because by then so many people 28:03.605 --> 28:05.515 were already immune. 28:05.519 --> 28:09.669 Well, there are a number of features of the Spanish Lady 28:09.673 --> 28:11.413 that made her unique. 28:11.410 --> 28:17.330 The first was that it possessed an extraordinary mortality and 28:17.334 --> 28:18.504 morbidity. 28:18.500 --> 28:22.770 Comparing it with normal outbreaks of influenza, 28:22.769 --> 28:27.219 it's impossible to generate precise statistics. 28:27.220 --> 28:31.440 But there are speculations that this was perhaps, 28:31.440 --> 28:35.380 in absolute terms, the greatest demographic shock 28:35.384 --> 28:39.414 that humanity had ever experienced from infectious 28:39.411 --> 28:40.481 diseases. 28:40.480 --> 28:46.250 More people died of influenza than of casualties in the First 28:46.246 --> 28:47.396 World War. 28:47.400 --> 28:52.190 Worldwide, some estimates--the estimates vary widely, 28:52.192 --> 28:56.342 so one has to take them with great caution. 28:56.338 --> 29:01.398 But they ranged from 25,000,000 people perishing, 29:01.397 --> 29:07.507 upwards to--the highest estimates are about 100,000,000. 29:07.509 --> 29:13.009 In the United States it's pretty well known that at least 29:13.007 --> 29:18.057 675,000 people perished; more than American casualties 29:18.057 --> 29:23.777 in all twentieth-century wars; ten times the numbers killed in 29:23.784 --> 29:25.464 First World War. 29:25.460 --> 29:30.890 In a normal--if there is such a thing--influenza outbreak, 29:30.894 --> 29:36.524 a case fatality rate might be something like 0.1 percent. 29:36.519 --> 29:39.499 In the case of the Spanish influenza, 29:39.500 --> 29:45.090 the case fatality rate was just above 2.5 percent, 29:45.088 --> 29:50.088 and this yielded a vast total mortality, 29:50.088 --> 29:52.548 because indeed, as it seemed at the time, 29:52.549 --> 29:55.859 almost everyone was infected. 29:55.858 --> 30:00.788 Let's look at a slide of the death rates. 30:00.788 --> 30:06.158 You can see the influenza, the great wave in October, 30:06.163 --> 30:09.163 November, December of 1918. 30:09.160 --> 30:16.860 The black is 1918--rather, sorry, is the average 1911 to 30:16.858 --> 30:20.918 1917, and the grey is 1918. 30:20.920 --> 30:25.830 So, this compares influenza then with what we might call 30:25.832 --> 30:27.532 normal influenza. 30:27.528 --> 30:31.708 You can see the extraordinary new mortality. 30:31.710 --> 30:36.120 Another feature of this influenza was the lack of 30:36.124 --> 30:40.634 understanding of the disease when it broke out. 30:40.630 --> 30:43.810 Indeed, I'd like to quote Victor Vaughan, 30:43.808 --> 30:48.498 who directed public health in the United States Army against 30:48.500 --> 30:50.170 the Spanish Lady. 30:50.170 --> 30:52.940 And he said, and I'm quoting: 30:52.941 --> 30:57.301 "Doctors know no more about the flu than 30:57.297 --> 31:03.927 fourteenth-century Florentines did about the Black Death." 31:03.930 --> 31:09.290 And I think it's important to understand this idea of a sense 31:09.290 --> 31:13.760 of helplessness facing this medical catastrophe. 31:13.759 --> 31:17.669 Some physicians indeed, in 1918, termed what they were 31:17.674 --> 31:20.634 facing "epidemic pneumonia." 31:20.630 --> 31:24.440 And then, as now, there was no effective 31:24.438 --> 31:25.608 treatment. 31:25.609 --> 31:28.519 The symptoms were distinctive. 31:28.519 --> 31:32.189 As you now know from reading Crosby, 31:32.190 --> 31:38.000 this influenza was fulminant, and post-mortem lung 31:37.997 --> 31:44.867 examinations revealed things that were unlike anything that 31:44.869 --> 31:49.729 examining physicians had seen before. 31:49.730 --> 31:55.030 Enormous quantities of bloody fluid, like a froth, 31:55.034 --> 31:57.204 filling the lungs. 31:57.200 --> 32:00.630 Some physicians, on their first encounter, 32:00.627 --> 32:05.057 suspected that this was a kind of pneumonic plague. 32:05.058 --> 32:08.718 Right here in New Haven, in the New Haven Hospital, 32:08.720 --> 32:13.650 pathologists wrote that the devastation caused to the lungs 32:13.651 --> 32:17.651 more than anything else resembled the effects of 32:17.647 --> 32:22.067 poisonous gases used in World War I,-like phosgene or 32:22.068 --> 32:25.738 chlorine, were the comparisons that came 32:25.736 --> 32:26.886 to their mind. 32:26.890 --> 32:30.310 Furthermore, although other organs of the 32:30.307 --> 32:35.107 body could be affected-- the spleen, for example--the 32:35.107 --> 32:40.447 impact of the Spanish Lady on the lungs was so overwhelming 32:40.448 --> 32:44.958 that that alone was often the cause of death, 32:44.960 --> 32:49.720 and pulmonary effects were almost the only ones that people 32:49.719 --> 32:50.539 noticed. 32:50.538 --> 32:56.408 Let me read a passage from Katherine Anne Porter, 32:56.406 --> 33:00.316 the famous writer, Pale Horse, 33:00.317 --> 33:05.817 Pale Rider, where she was herself a victim 33:05.817 --> 33:08.627 of the influenza. 33:08.630 --> 33:11.540 And she writes here in the third person, 33:11.538 --> 33:14.268 but she's describing her own symptoms, 33:14.269 --> 33:17.409 and I think it's worth noting how she felt: 33:17.413 --> 33:21.483 "Silenced, Miranda sank easily through 33:21.482 --> 33:27.072 deeps upon deeps of darkness, until she lay like a stone at 33:27.071 --> 33:32.371 the farthest bottom of life, knowing herself to be blind, 33:32.372 --> 33:35.912 deaf, speechless, no longer aware of the members 33:35.913 --> 33:39.213 of her own body, entirely withdrawn from all 33:39.208 --> 33:42.878 human concerns, yet alive with a peculiar 33:42.884 --> 33:45.034 lucidity and coherence. 33:45.029 --> 33:48.649 All notions of the mind, the reasonable inquiries of 33:48.651 --> 33:51.451 doubt, all ties of blood and desires 33:51.451 --> 33:54.561 of the heart, dissolved and fell away from 33:54.561 --> 33:57.411 her, and there remained only a minute, 33:57.410 --> 34:02.150 fiercely burning particle of being that knew itself alone, 34:02.150 --> 34:06.450 that relied upon nothing beyond itself for its strength, 34:06.450 --> 34:10.370 not susceptible to any appeal or inducement, 34:10.369 --> 34:14.509 being itself composed entirely of one single motive, 34:14.510 --> 34:17.140 the stubborn will to live. 34:17.139 --> 34:22.659 This fiery, motionless particle set itself unaided to resist 34:22.664 --> 34:26.024 destruction, to survive, and to be in its 34:26.023 --> 34:30.413 own madness of being, motiveless and planless, 34:30.414 --> 34:34.014 beyond that one essential end. 34:34.010 --> 34:39.160 She felt, without warning, a vague tremor of apprehension, 34:39.157 --> 34:42.947 some small flick of distrust in her joy. 34:42.949 --> 34:47.279 A thin frost touched the edges of this confident tranquility. 34:47.280 --> 34:49.080 Something, somebody was missing. 34:49.079 --> 34:50.469 She'd lost something. 34:50.469 --> 34:53.199 She had left something valuable in another country. 34:53.199 --> 34:55.369 What could it be? 34:55.369 --> 34:58.409 'There are no trees, no trees here,' she said in 34:58.407 --> 34:58.987 fright. 34:58.989 --> 35:01.359 'I've left something unfinished.' 35:01.360 --> 35:04.680 A thought struggled at the back of her mind, came clearly as a 35:04.684 --> 35:05.724 voice in her ear. 35:05.719 --> 35:06.879 'Where are the dead? 35:06.880 --> 35:08.210 We've forgotten the dead. 35:08.210 --> 35:10.530 The dead, where are they?' 35:10.530 --> 35:14.420 At once, as if a curtain had fallen, the bright landscape 35:14.422 --> 35:14.982 faded. 35:14.980 --> 35:19.430 She was alone in a strange stony place of bitter cold, 35:19.434 --> 35:23.724 picking her way along a steep path of slippery snow, 35:23.722 --> 35:26.752 calling out, 'Oh I must go back. 35:26.750 --> 35:29.250 But in what direction?' 35:29.250 --> 35:32.330 Pain returned, a terrible compelling pain, 35:32.327 --> 35:35.627 running through her veins like heavy fire. 35:35.630 --> 35:39.630 The stench of corruption filled her nostrils. 35:39.630 --> 35:43.430 The sweetish, sickening smell of rotting 35:43.429 --> 35:44.989 flesh and pus. 35:44.989 --> 35:49.119 She opened her eyes and saw pale light through a coarse 35:49.121 --> 35:53.371 white cloth over her face, and she knew that the smell of 35:53.367 --> 35:58.267 death was in her own body, and she struggled to lift her 35:58.273 --> 35:59.523 hand." 35:59.518 --> 36:05.398 There are also pictures of--this is a famous painting of 36:05.400 --> 36:09.250 Edvard Munch, After the Influenza, 36:09.248 --> 36:10.958 in 1919. 36:10.960 --> 36:15.860 Or this is also--in fact, this is called After the 36:15.862 --> 36:18.412 Flu, painted in 1919. 36:18.409 --> 36:21.869 A doctor wrote that his patients died, 36:21.871 --> 36:27.111 struggling to clear their airways of a blood-tinged froth 36:27.112 --> 36:31.232 that gushed from their noses and mouths. 36:31.230 --> 36:35.030 The fluid then filled the respiratory system, 36:35.034 --> 36:40.054 from the trachea to the tiniest alveoli and bronchioles. 36:40.050 --> 36:44.970 And at post-mortem examination the lungs were greatly 36:44.974 --> 36:48.864 distended, and when pressed, even lightly, 36:48.858 --> 36:53.498 oozed with blood-tinged fluid and yellow pus. 36:53.500 --> 36:57.760 The walls of the alveoli collapsed under the pressure, 36:57.760 --> 37:02.910 leaving a formless mass where neither blood nor air could flow 37:02.905 --> 37:05.525 freely, and the patient died of 37:05.527 --> 37:09.547 asphyxia, or the blockage of pulmonary circulation. 37:09.550 --> 37:14.720 Let me show you two pictures of the lungs of a young woman who 37:14.715 --> 37:19.285 died of the Spanish Lady at the New Haven Hospital, 37:19.289 --> 37:24.379 and I think you can see the enormous and terrifying 37:24.376 --> 37:28.546 destruction of the lungs that occurred. 37:28.550 --> 37:33.570 Well, in addition, there were important sequelae. 37:33.570 --> 37:38.840 One feature of the Spanish Lady was the distinctive length of 37:38.835 --> 37:40.235 convalescence. 37:40.239 --> 37:44.239 And also there were neurological aftereffects, 37:44.239 --> 37:48.519 protracted depression, and there is speculation that 37:48.523 --> 37:53.313 throughout the 1920s there was an outbreak of neurological 37:53.311 --> 37:56.901 afflictions, that Oliver Sacks deals with in 37:56.900 --> 37:59.340 his famous book Awakenings. 37:59.340 --> 38:03.730 There's some dispute about whether this was an authentic, 38:03.730 --> 38:07.570 among authentic sequelae of the Spanish influenza, 38:07.572 --> 38:10.162 but it is at least plausible. 38:10.159 --> 38:15.779 Another feature that made this pandemic distinctive was the age 38:15.775 --> 38:18.035 profile of the victims. 38:18.039 --> 38:22.099 We've seen how normally in influenza there's a U-shaped 38:22.097 --> 38:22.697 curve. 38:22.699 --> 38:27.609 It does what seems normal to people, attacking the very young 38:27.614 --> 38:29.094 and the elderly. 38:29.090 --> 38:34.160 The Spanish Lady instead had a preference for adults in the 38:34.157 --> 38:37.037 twenty to forty-year age group. 38:37.039 --> 38:41.439 And so it produced something that seemed highly unnatural, 38:41.442 --> 38:44.842 a W-shaped curve, with a spike in the middle, 38:44.840 --> 38:48.470 afflicting the people in the prime of life. 38:48.469 --> 38:53.869 Victor Vaughan again observed that the Spanish flu imitated 38:53.871 --> 38:57.511 the war itself, and that it killed young 38:57.505 --> 38:58.525 adults. 38:58.530 --> 39:03.290 Like war, he said, this infection kills young, 39:03.289 --> 39:06.039 vigorous, robust adults. 39:06.039 --> 39:08.819 The reasons are still mysterious. 39:08.820 --> 39:12.240 But one could point to a couple of partial factors. 39:12.239 --> 39:17.989 Perhaps the elderly had some immunity left over from the 39:17.985 --> 39:21.325 great pandemic of 1889 to '90. 39:21.329 --> 39:25.329 And it was the young, of course, epidemiologically, 39:25.326 --> 39:29.956 who most directly experienced the war and military service, 39:29.961 --> 39:35.301 in close, crowded conditions; just the young population, 39:35.297 --> 39:36.747 most at risk. 39:36.750 --> 39:41.180 And for those of you who think that working out at the gym 39:41.175 --> 39:44.355 protects you from influenza pandemics, 39:44.360 --> 39:49.720 I would point out that the physically fit also fell ill in 39:49.715 --> 39:51.685 comparable numbers. 39:51.690 --> 39:53.930 John Hellum, the U.S. 39:53.929 --> 39:59.499 pentathlon champion--that is, someone who did the broad jump, 39:59.501 --> 40:02.751 discus, javelin, 200-meters and 1500 40:02.753 --> 40:06.843 meters--died in October 1918 of the flu. 40:06.840 --> 40:10.450 As did Jackie O'Shaughnessy, who was the U.S. 40:10.449 --> 40:13.049 National quarter-mile champion. 40:13.050 --> 40:17.560 So, physical fitness had nothing to do with survival from 40:17.561 --> 40:18.851 the influenza. 40:18.849 --> 40:21.829 Let me show you a graph. 40:21.829 --> 40:27.349 This is the notorious U-shaped curve of the influenza. 40:27.349 --> 40:29.639 And you see the two curves together. 40:29.639 --> 40:35.439 The dotted line is normal influenza, and this solid line, 40:35.443 --> 40:41.143 with the terrible W in the middle, is the mortality from 40:41.143 --> 40:43.323 the Spanish Lady. 40:43.320 --> 40:46.460 Well, meanwhile, what happened with public 40:46.460 --> 40:47.150 health? 40:47.150 --> 40:51.780 And here a major feature is to point out-- 40:51.780 --> 40:55.870 and we should think of this in terms of lessons for 40:55.869 --> 40:59.699 preparedness today-- was the way that the public 40:59.697 --> 41:02.097 health service was overwhelmed. 41:02.099 --> 41:07.259 It was overwhelmed in part because of the extreme rapidity 41:07.255 --> 41:11.235 with which this disease, through its airborne 41:11.235 --> 41:13.855 transmission, was spread; 41:13.860 --> 41:21.230 by the speed of transportation, and the short incubation period 41:21.228 --> 41:23.248 of the disease. 41:23.250 --> 41:27.590 It was also true that there is a percentage--perhaps ten 41:27.592 --> 41:32.252 percent, in the Spanish Lady--of people who are asymptomatic 41:32.253 --> 41:33.283 carriers. 41:33.280 --> 41:39.830 Influenza also was not a reportable disease. 41:39.829 --> 41:44.879 It was maximized also because of the unavoidable and 41:44.876 --> 41:50.416 uncontrollable movement of troops, because of the war. 41:50.420 --> 41:53.560 But in addition, there was a lack--and we might 41:53.556 --> 41:58.006 think about this-- of preparation for just such an 41:58.005 --> 42:01.905 emergency, a shortage of doctors, 42:01.914 --> 42:08.214 nurses, hospital beds and space on hospital wards. 42:08.210 --> 42:13.080 Influenza also has the terrible feature, 42:13.079 --> 42:17.999 unlike cholera for example, that it creates chaos within 42:17.996 --> 42:23.466 the health system itself, by striking down caregivers who 42:23.474 --> 42:27.414 are among those who are most vulnerable. 42:27.409 --> 42:31.379 And then there was the war itself, in which doctors and 42:31.380 --> 42:35.200 nurses were mobilized to deal with the victims of the 42:35.204 --> 42:36.164 conflict. 42:36.159 --> 42:40.009 So, there were drastic shortages of healthcare 42:40.012 --> 42:44.212 personnel available to the civilian population. 42:44.210 --> 42:47.840 Rupert Blue, whom you will remember from the 42:47.840 --> 42:51.620 Barbary Plague, was a director of public health 42:51.623 --> 42:55.773 services during the crisis, and he was forced to lure 42:55.771 --> 42:58.941 doctors and nurses out of retirement, 42:58.940 --> 43:05.240 to help deal with the emergency; to recruit even from old-age 43:05.244 --> 43:06.034 homes. 43:06.030 --> 43:12.390 Well, what were the measures adopted to deal with the crisis? 43:12.389 --> 43:14.969 Anti-flu measures, by this time, 43:14.971 --> 43:20.301 were based on the premise that this was a contagious disease, 43:20.300 --> 43:24.230 and the understanding that influenza was spread somehow 43:24.230 --> 43:25.540 through the air. 43:25.539 --> 43:30.589 A first major goal was to prevent those who were healthy 43:30.590 --> 43:35.460 from inhaling the contaminated air of the infected. 43:35.460 --> 43:38.880 To that end, public gatherings and 43:38.880 --> 43:45.000 assemblies of large numbers of people at close quarters were 43:44.998 --> 43:46.138 banned. 43:46.139 --> 43:50.079 Public institutions were closed: schools, 43:50.081 --> 43:53.531 dancehalls, movie theaters, bars. 43:53.530 --> 43:58.090 Churches in this country were allowed to remain open, 43:58.090 --> 44:02.390 but the number of services was greatly reduced. 44:02.389 --> 44:06.239 In many cities, people seen by the police to be 44:06.239 --> 44:10.509 coughing and sneezing, without covering their faces, 44:10.509 --> 44:12.769 were stopped and fined. 44:12.768 --> 44:16.998 The New York City Department of Health posted some 10,000 44:17.003 --> 44:20.953 placards around the city, bearing a message that was 44:20.954 --> 44:24.974 familiar to the public, because of its similarity to 44:24.967 --> 44:28.977 the urgings of the campaign against tuberculosis. 44:28.980 --> 44:32.390 So, one can see the anti-tuberculosis campaign 44:32.389 --> 44:35.799 preparing people, in a sense, for dealing with 44:35.798 --> 44:36.858 influenza. 44:36.860 --> 44:39.660 And in New York City the placards said: 44:39.659 --> 44:43.049 to prevent the spread of Spanish influenza, 44:43.050 --> 44:48.650 sneeze, cough or expectorate, if you absolutely must, 44:48.650 --> 44:54.110 into your own handkerchief; you're in no danger if everyone 44:54.112 --> 44:56.582 should heed this warning. 44:56.579 --> 45:03.669 Another widespread measure was a practical application also. 45:03.670 --> 45:08.970 One was masking with gauze masks, and some municipalities 45:08.971 --> 45:13.801 required their whole populations to put on masks. 45:13.800 --> 45:18.110 San Francisco did so, and so did San Diego. 45:18.110 --> 45:22.380 Another was disinfection practices, applied in hospital 45:22.380 --> 45:25.070 wards, sickrooms and ambulances. 45:25.070 --> 45:29.450 Trains too were washed down with antiseptic solutions. 45:29.449 --> 45:37.209 You can see a picture of the properly masked police. 45:37.210 --> 45:39.710 I think this is San Francisco. 45:39.710 --> 45:46.370 And here you can see the general masking of the whole 45:46.373 --> 45:48.043 population. 45:48.039 --> 45:53.049 And this was a public notice, a public health poster from 45:53.054 --> 45:58.164 Kingston, New York or--and it says about the measures I've 45:58.157 --> 46:01.427 told you about; theaters, churches, 46:01.425 --> 46:04.225 schools, hospitals, and so forth. 46:04.230 --> 46:09.240 Or you can see here another poster for public health. 46:09.239 --> 46:13.889 State boards of health also isolated the ill through 46:13.887 --> 46:18.987 quarantine, as far as possible, and the military tried to 46:18.990 --> 46:22.090 quarantine its training camps. 46:22.090 --> 46:26.830 On hospital wards, sheets were hung between beds. 46:26.829 --> 46:31.719 Ambulance trains were washed down with antiseptic. 46:31.719 --> 46:36.449 People were urged to avoid nervous and physical exhaustion. 46:36.449 --> 46:39.739 You can see a long legacy of this idea. 46:39.739 --> 46:43.709 You remember Laennec talking about the passions 46:43.706 --> 46:48.316 tristes, the sad passions, and their influence on your 46:48.322 --> 46:49.702 constitution. 46:49.699 --> 46:53.509 So, some of the advice had a really long history that you'll 46:53.505 --> 46:54.275 recognize. 46:54.280 --> 47:00.050 And they also cautioned you to avoid chills. 47:00.050 --> 47:04.340 They urged people to gargle with warm water and salt, 47:04.344 --> 47:07.904 and to spray saline solutions up their nose, 47:07.896 --> 47:09.876 to wear gauze masks. 47:09.880 --> 47:14.620 And legislation was passed to prevent the use of common 47:14.623 --> 47:16.033 drinking cups. 47:16.030 --> 47:20.170 Some people sprayed their nostrils with carbolic acid 47:20.172 --> 47:23.232 spray, and some towns set up fines to 47:23.226 --> 47:27.286 punish people they called-- this was one of the jargons at 47:27.289 --> 47:30.889 the time-- the open-face sneezer. 47:30.889 --> 47:35.579 New York City modified the opening hours of stores and 47:35.577 --> 47:39.467 businesses in order to stagger rush hour, 47:39.469 --> 47:44.549 so that subway trains and trams would not be so crowded and not 47:44.545 --> 47:46.015 be so dangerous. 47:46.018 --> 47:51.238 Congress voted special funds to enable Surgeon General Rupert 47:51.237 --> 47:56.627 Blue to recruit thousands of doctors and hundreds of nurses. 47:56.630 --> 48:01.400 But, as I said, the war effort complicated his 48:01.400 --> 48:06.280 task, and he turned to people who'd retired. 48:06.280 --> 48:12.470 And those were other--I wanted to show you a camp. 48:12.469 --> 48:17.129 The fact that it was wartime made it easy for the government 48:17.128 --> 48:20.838 to induce people to accept rigorous measures. 48:20.840 --> 48:24.070 People by this time had grown used, by 1918, 48:24.074 --> 48:27.014 to invasive and restrictive measures. 48:27.010 --> 48:30.680 They already knew all about the draft, or rationing, 48:30.684 --> 48:32.634 or daylight savings time. 48:32.630 --> 48:37.710 But existing facilities were inadequate to cope with a sudden 48:37.706 --> 48:41.506 surge, and so the general public, one can see, 48:41.512 --> 48:44.392 suffering as a result of that. 48:44.389 --> 48:48.689 I wanted to mention that there were also popular remedies that 48:48.688 --> 48:51.858 people adapted, and especially in rural areas, 48:51.860 --> 48:54.680 recourse to folk remedies and magic. 48:54.679 --> 48:57.509 Onion soup was thought to be a preventative. 48:57.510 --> 49:01.860 People stuffed salt up their nostrils to ward off danger. 49:01.860 --> 49:05.760 They wore garlic around their neck, as they had in Florence in 49:05.764 --> 49:07.624 the time of bubonic plague. 49:07.619 --> 49:11.749 They burned hot charcoals with sulfur or brown sugar, 49:11.751 --> 49:15.251 to give off a reassuring protective aroma; 49:15.250 --> 49:18.290 you can recognize this too from the plague. 49:18.289 --> 49:22.629 There were rumors that the disease perhaps was an act of 49:22.632 --> 49:23.662 bio-terror. 49:23.659 --> 49:27.519 There were thoughts that there were mysterious German agents 49:27.521 --> 49:30.731 who landed on U-boats and started the epidemic. 49:30.730 --> 49:35.890 There were suspicious too that poisonous gases associated with 49:35.887 --> 49:40.367 the war effort had escaped and caused the disaster. 49:40.369 --> 49:45.029 Well, I will run out of time now, and just say that one of 49:45.034 --> 49:50.194 the things to think about then are what are possible lessons? 49:50.190 --> 49:52.790 And I just wanted to leave us to think, 49:52.789 --> 49:58.129 as we deal with our own H1N1, and possibly whatever its 49:58.128 --> 50:02.178 successor is, that clearly in 1918 and '19, 50:02.184 --> 50:07.484 there's a collective memory in the public health service of the 50:07.478 --> 50:12.428 vulnerability of a society of critically ill patients, 50:12.429 --> 50:16.169 turned away from hospitals, that were full to bursting, 50:16.170 --> 50:21.230 with no care available because the system was overwhelmed. 50:21.230 --> 50:26.850 And there's a fear then of what about the effects now of the 50:26.853 --> 50:30.383 impact of organized care medicine, 50:30.380 --> 50:35.350 on a managed care basis, with cost-cutting search for 50:35.347 --> 50:39.627 savings in our system; the commitment to ridding 50:39.628 --> 50:43.208 hospitals of excess capacity and spare beds. 50:43.210 --> 50:48.270 And so this approach raises the question of what would happen in 50:48.269 --> 50:52.929 another time when the system might once again be tested? 50:52.929 --> 50:57.999