Wednesday, April 1, 2020

Just 100,000-240,000 deaths? Is this an April Fool's joke?


  
“There’s tremendous hope as we look forward and see light at the end of the tunnel.”
Donald Trump, March 24, 2020

Trump said this yesterday, but I just realized he said it a week ago as well. His use of these words shows we’re really in trouble. For those of you who weren’t politically engaged during the Vietnam War, this phrase has a very special resonance (and it’s amazing that none of Trump’s advisers, or Trump himself, remembered this): In 1967, at the height of the Vietnam War, when we were losing troops at the rate of hundreds a week in some weeks, Gen. William Westmoreland (the general in charge of the whole Vietnam fiasco during the years when we built up to 500,000 troops on the ground) said exactly this to the American people. This was just one of a string of rosy projections and misstated facts on the part of Lyndon Johnson and his administration.

Of course, by 1967 there was a huge movement to end the war, and that statement was ridiculed by many – including me, except I was just a high school student at the time. However, general support for the war continued until February 1968, during the big Tet (lunar new year) holiday, when the North Vietnamese army and the Viet Cong launched a devastating insurrection in all cities in South Vietnam and penetrated the US embassy in Saigon. They were ultimately defeated, but after a long fight and thousands of US military losses – and over 100,000 South Vietnamese losses.

But the “victory” by the US and South Vietnamese turned into a defeat on the home front, since the US population realized they had been lied to and there was no light at all, except perhaps at the end of a much longer and bloodier tunnel than they had ever thought to be likely. From then on, the only question was when the US would pull out of Vietnam.

And unfortunately, it looks like this phrase is once again being used to mask a much bleaker picture than the public one. Yesterday, Trump and Dr. Fauci outlined a study from University of Washington that said the coronavirus may kill 100,000 to 240,000 people. And this is assuming there will be massive social distancing; the number could be 2.2 million if that doesn’t happen. Nationwide distancing will be put in place next week (and be completely successful), and this will result in new infections turning down around April 15.

Are these realistic numbers? Absolutely, given the assumptions. But I want to point out some observations I made when I updated my spreadsheet of projections this morning with yesterday’s numbers (and for a discussion of my methodology, see yesterday’s post):

  1. The social distancing in place now – mainly due to some state governors taking the initiative to lock down their states, not due to the Federal voluntary guidelines, which the report itself doesn’t deem very effective – has had a real effect so far. The 3-day growth rate in total reported cases has fallen from 74% two weeks ago (when most of the statewide lockdowns were put in place) to 32% yesterday. The latter is the number I used for today’s projections of cases (and total epidemic deaths) going forward.
  2. However, for the last three days, the growth rate hasn’t changed. Does this indicate that we’re not going to get much more improvement from the limited distancing that’s in place now (limited because a lot of states aren’t doing it)? I don’t know, but I’m not going to assume any more improvement until the 3-day growth rate continues to go down.
  3. If we implement a total national lockdown today (with ending non-essential interstate travel) and it’s 100% successful, we’ll have 100,000 deaths over the course of the epidemic.
  4. There’s no way total new infections will turn down on April 15, but at least the rate of change will start falling again if we lock down next week, from the 32% 3-day rate that was recorded yesterday.
  5. If we wait until April 10 to do this, that number is 242,000. And interestingly enough, that’s basically the assumption of the UW study – that total social distancing will be in effect by the end of next week. So the 240,000 maximum deaths in the UW study is my minimum number, assuming that a total lockdown is put in place next week.
  6. If we wait until April 19, total deaths goes over 500,000. If we wait until April 30, it goes to 1.7 million. Remember: exponential growth.
  7. I’m also projecting actual deaths, not just total deaths over the course of the epidemic. The latter number if based on the number of cases, whereas the former is just a projection of the current growth rate of reported deaths (as of today, that is 82% every three days). That number will be 100,000 by April 15. So the idea that we could still have 100,000 deaths over the course of the pandemic is pure fantasy.
But here’s the problem: The assumption that there will be a total lockdown next week is going to require Trump to do something that he has so far been very reluctant to do: Order all states to lock down, whether or not they want to do it, and cut off all non-essential interstate travel by any means. Of course, cutting off air travel is fairly easy, but ground is very hard. Moreover, I’m assuming the lockdown and transportation shutdown will be 100% successful, which they clearly won’t be, for many reasons.

This isn’t to say Trump won’t change his mind if persuaded, but that job will fall to Dr. Fauci and Dr. Susan Birx. Dr. Birx doesn’t even try very hard to change Trump’s mind, as exemplified by her assertion last Thursday that there’s no shortage of ventilators; so she will be no help in this. If Dr. Fauci can’t convince Trump to do the right thing, probably nobody else will (although there’s one other person who might be able to. I’ll discuss him tomorrow).

Unfortunately, Dr. Fauci is clearly not suited for this particular task, for two reasons. The first has to do with the lack of testing capacity starting in early February, when other countries – at least in Asia – were already testing many of their people. Dr. Fauci isn’t directly responsible for the lack of testing – the CDC and FDA are – but, assuming he was making internal efforts to get the problem fixed, his efforts were distinctively unsuccessful. He finally admitted to Congress in late February that testing was kinda sort a problem. If we had gotten testing going when other countries did (perhaps because Dr. Fauci would have made a big public statement about this), we would probably be looking at in the hundreds or low thousands of deaths now, rather than hundreds of thousands or millions.

Two days ago, Dr. Fauci convinced Trump to extend his national guidelines through the end of April. Isn’t this a partial success? It may have some small effect on the growth rate of new cases, but it doesn’t change anything. We need a total nationwide lockdown with widely available testing, for three reasons:

  1. The economy will never fully restart unless a) all people with the virus have been quarantined and b) new infections have been reduced to zero. Otherwise, anyone who goes into an office or factory is risking getting infected from the person next to them, who doesn’t even know they are infected.
  2. A total lockdown is the only way to count total cases. Not having adequate testing available in early February means that the virus is probably everywhere now, and still rapidly growing – epidemiologists have said there are between five and ten times real coronavirus cases in the US today as in the official count (meaning there are between one and two million total cases today). Testing is still very spotty, and it will never catch up with the actual spread of the virus unless we have a total lockdown. This means that the only way to find out who is infected is to lock everybody down – and it really needs to be by individuals as much as possible, not family groups (since they will just end up infecting each other). At the end of the lockdown period, we will be fairly sure that anyone who isn’t already sick is disease-free.
  3. Yet even after the lockdown, there needs to be massive testing available. Think about restarting a company. Won’t you want all your employees to be tested before they go back to work? And if there might be any untested cases out there (which is almost certain, no matter how close-to-total the lockdown is), wouldn’t you want your workers to be re-tested every week at least? And if your company doesn’t want to do this, would you continue to work for them?
If we don’t get a total lockdown with testing widely available, every time we lift the lockdown, even partially, growth will spring back exponentially. The fact that growth has been drastically reduced for a short time means nothing – within a month we’ll be back where we are today. Remember, at the beginning of March, there were 100 infections reported nationwide; on April 1, there are 200,000. This means we’ll never defeat the virus – and it will remain a major drag on the economy – without a total lockdown.

This is why Trump’s extension of his guidelines for a month means very little (and the UW report itself implies that). Unfortunately, by getting Trump to make this grudging concession, Dr. Fauci has pretty well precluded coming back in a day or two and saying “You know what? I need you to do much more. I need you to impose a total lockdown.”

Nevertheless, he has to do it. Dr. Fauci, there’s still time this afternoon. Please demand that Trump see you and give him this message: We need a total lockdown. Today if possible, but tomorrow at the latest.

And if you aren’t going to do that, you should resign. By making the public believe that the administration is listening to a real expert, you’re just perpetuating the “light at the end of the tunnel” lie.

Yesterday’s numbers (from Worldometers, as of about 7 PM EDT March 31)
Total US confirmed cases: 188,647
Increase in cases since previous day: 24,212 (vs. 21,689 increase yesterday)
Percent increase in cases since yesterday: 15% (vs. 15% yesterday)
Percent increase in cases since 3 days previous: 32% (vs. 33% yesterday)

Total US deaths as of yesterday: 4,059
Increase in deaths since previous day: 884 (vs. 686 yesterday)
Percent increase in deaths since previous day: 28% (vs. 28% yesterday)
“Set in stone” US deaths over course of pandemic:  91,699 (based on 4% case mortality rate)
*This number assumes a) Total cases grow by 32% into the future (= yesterday’s 3-day growth rate in cases); b) New cases drop to zero on April 29, because of the lockdown; and c) case mortality rate = 4%. To consider a 6% mortality rate, multiply each projection by 1.5. For 8%, double it. For comparison, Italy’s case mortality rate is currently 11.75%.

Projected as of April 8 (7 days from today):
Total expected* cases: 335,830
Total deaths set in stone** over course of pandemic: 201,499
*Expected cases assumes a) Total cases grow by 33% into the future (= yesterday’s 3-day growth rate in cases); b) we wait until April 8 to impose a total lockdown; c) New cases drop to zero on May 5, because of the lockdown
** Deaths set in stone = expected cases X case mortality rate of 4%. To consider a 6% mortality rate, multiply the figure by 1.5. For 8%, double it. For comparison, Italy’s case mortality rate is currently 11%.
Projected*** number of actual deaths on 4/7 alone: 1,700
*** Projected deaths = previous day’s death number, grown by the 3-day percentage growth rate. Note this is calculated completely differently from the deaths set in stone.

Projected as of April 15 (14 days from today):
Total expected* cases: 755,996
Total deaths set in stone** over course of pandemic: 367,479
*Expected cases assumes a) Total cases grow by 32% into the future (= yesterday’s 3-day growth rate in cases); b) we wait until April 15 to impose a total lockdown; c) New cases drop to zero on May 13, because of the lockdown.
** Deaths set in stone = expected cases X case mortality rate of 4%. To consider a 6% mortality rate, multiply the figure by 1.5. For 8%, double it. For comparison, Italy’s case mortality rate is currently 11%.

Reported case mortality rate so far in the pandemic in the US:
Total Recoveries in US as of yesterday (3/29): 5,211
Total Deaths as of yesterday: 2,489
Deaths so far as percentage of closed cases (=deaths + recoveries): 38%
Projected*** number of deaths on 4/15 alone: 17,653 (equal to about five times total deaths on 9/11. And this is the reported deaths in a single day)
*** Projected deaths = previous day’s death number, grown by the 3-day percentage growth rate.

Date on which 100,000 deaths will be set in stone: April 1
Date on which 200,000 deaths will be set in stone: April 8
Date on which 500,000 deaths will be set in stone: April 19
Date on which 1 million deaths will be set in stone: April 26
“Set in stone” means that on that date, a total lockdown will be put in place. It will be 100% effective (0 new cases) 28 days later.




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