So it’s one, two, three, what are we fighting for?
Don’t ask me, I don’t give a damn. Next stop is Viet Nam!
And it’s five, six, seven, open them pearly gates.
There ain’t no time to wonder why – Whoopee! – We’re all gonna die!
- Country Joe and the Fish, “Fixin’ to die
rag”
First, the
Numbers
As you may know, I’ve been projecting total Covid-19 cases (which I
project by growing yesterday’s reported case number by yesterday’s 3-day rate
of increase in that number) since close to the beginning of this blog a little
more than four weeks ago (although it literally feels like four months, if not
four years). I have then (and still am, of course) combined that with a
mortality rate estimate to come up with a “set in stone” minimum projection of
total pandemic deaths. This is the minimum total projected deaths over the
course of the pandemic, based on that day’s reported case number and some very
restrictive (and frankly, very unrealistic) assumptions about what will happen
from that day on (you can read these below)
But it’s only been in about the last two weeks that I’ve projected total
reported deaths, by growing yesterday’s reported deaths by the three-day growth
rate of daily reported deaths. Given the well-documented problems with
availability of test kits and especially testing supplies, this means total
deaths is a much more reliable indicator of the course of the coronavirus in
the US than are my projections of total cases and set in stone pandemic deaths.
In the last few days, I’ve started looking at projections by week
(created just by summing new deaths over every week) and by month, and I just
extended them through May. I’ve listed these below. I’m going to do these
regularly from now on. Remember, these are based on nothing more than growing
the reported daily deaths number by the most recent three-day growth rate.
Just look at the numbers in red below, including 1.2 million deaths in May,
meaning about 42,000 deaths every day in May. Now tell me with a
straight face that we ought to give Mr. Trump some more time to figure out how
he can get us out of this mess, especially when his only “remedy” – unlocking the
economy - will only make total deaths much larger.
I heard Country Joe and the Fish perform the “Fixin’ to die rag” in a Philadelphia
park one evening in 1967 (and they also performed it at Woodstock. It was
recorded in the great movie about that gathering). The song is filled with
sarcastic outrage that American families were sending their sons off to be
killed in Vietnam, when Lyndon Johnson and all his generals couldn’t even give
a clear answer about why we were there in the first place.
I am now filled with anger that so many Americans are so complacent
about the absolute disaster that’s about to befall them, and even more the fact
that the team at the top is so totally unwilling to learn from the mistakes
they – and other countries, too - have made, and still won’t admit to simple
facts that are causing enormous problems for us, like the huge supply chain
problems in getting tests and the supplies needed for those tests.
What’s the worst case I see? When somewhere between 40% and 70% of the
population has been infected (and this will happen this summer, long before a
vaccine will be available), herd immunity will kick in. Let’s say it does this
when 50% of the population has been infected. How many deaths does that mean? I’m
using 7% as my case mortality rate estimate, but as the numbers at the very end
of this post show, the most educated guess we can give on this number is 37%,
since that is the actual number so far in the US (Italy’s and France’s numbers
are in this same ballpark. Others like Spain aren’t that far behind).
So how many deaths in this worst case scenario? 160 million times 37%,
or about 59 million. Ironically, that’s a little more than a thousand
times the number of Americans that died in the Vietnam war, of all causes. Back
then, we thought that was a pretty big deal.
Reported
Covid-19 deaths during week ending:
March 7: 16 (2 deaths/day)
March 14: 38 (138% increase, 5 deaths/day)
March 21: 244 (542% increase, 35 deaths/day)
March 28: 1,928 (690% increase, 275 deaths/day)
April 4: 6,225 (23% increase, 889 deaths/day)
April 11: 12,126 (95% increase, 1,732 deaths/day. That is more than the
total deaths on the Titanic, every day)
Projected
Covid-19 deaths during week ending:
April 18: 16,280 (34% increase, 2,326 deaths/day)
April 25: 28,772 (77% increase, 4,110 deaths/day. In other words, 1,100
more deaths than on 9/11, every day)
Total deaths for April: 97,118 (3,237 per
day. In other words, more people will die of Covid-19 in April than died of all
causes in US wars since WWII. Daily deaths will exceed the 9/11 toll).
May 2: 54,797 (90% increase, 7,828
deaths per day)
May 9: 99,131 (80% increase, 14,162
deaths per day)
May 16: 171,039 (73% increase, 24,434
deaths per day)
May 23: 325,751 (90% increase, 46,536
deaths per day)
May 30: 589,299 (81% increase, 84,186 deaths
per day)
Total deaths for May: 1,293,335 (41,720
deaths per day)
Projected deaths for each day equals the previous day’s deaths, grown by
yesterday’s 3-day percentage growth rate in new deaths, which as of today is
27%. The weekly number is the sum of the projected deaths for the 7-day period.
Note that my estimated case mortality rate doesn’t affect these projections at
all.
I. Numbers
based on total cases, actual and projected
Total US confirmed cases: 644,348
Increase in cases since previous day: 30,102 (vs. 27,073 increase yesterday)
Percent increase in cases since yesterday: 5% (vs. 5% yesterday)
Percent increase in cases since 3 days previous: 15% (vs. 15%
yesterday)
“Set in
stone” US deaths over course of pandemic: 166,281
This number
assumes a) Reported cases are a fairly accurate estimate of total cases; b) Total
cases grow by 17% into the future (= yesterday’s 3-day growth rate in cases);
c) We impose a massive lockdown, with prohibition of all non-essential travel, today;
d) New cases drop to zero in 28 days, because of the lockdown, but they
continue to grow at the current projected rate up to the 28th day; e)
testing and contract tracing are widely available by the 28-day mark; and f) the
case mortality rate = 7%.
Date
on which 500,000 total pandemic deaths will be set in stone: May 9
Number
of deaths set in stone on April 30: 334,450
These
numbers assume a) Reported cases are a fairly accurate estimate of total cases;
b) Total cases grow by 15% into the future (= yesterday’s 3-day growth rate in
cases); c) We impose a massive lockdown, with prohibition of all non-essential
travel, on that day; d) New cases drop to zero in 28 days, because of the
lockdown, but they continue to grow at the current projected rate up to the 28th
day; e) testing and contract tracing are widely available by the 28-day mark;
and f) the case mortality rate = 7%.
II. Numbers
based on total deaths, reported and projected
(All of the
numbers below are based on reported deaths, not reported cases. The reported
cases number is the basis for the set in stone deaths numbers above; however,
there’s general agreement that reported cases are some fraction of actual
cases. So the projections below are going to be much more accurate estimates of
deaths than the ones above, at least in the shorter term)
Total US deaths as of yesterday: 28,554
Increase in deaths since previous day: 2,490 (vs. 2,420 yesterday)
Percent increase in deaths since previous day: 10% (vs. 10% yesterday)
Yesterday’s 3-day rate of increase in total deaths: 29% (vs. 27%
reported yesterday)
Date on
which the number of new deaths on that day will probably exceed the toll
of Sept. 11: April 17
III. Reported case mortality rate so far in
the pandemic in the US:
Total Recoveries in US as of yesterday: 48,708
Total Deaths as of yesterday: 28,554
Deaths so far as percentage of closed cases
(=deaths + recoveries): 37% (vs. 40%
yesterday) Let’s
be clear. This means that, of all the coronavirus cases that have been closed
so far in the US, 37% of them have resulted in death (compare that to the 7%
mortality rate I’ve now using to calculate the “set in stone” total pandemic
deaths numbers). Of course, this number will come down as time goes on and more
cases are closed in which the victim recovered. But this number has gone down
and up since Worldometers started publishing the recovery rate on March 26
(when it was 41%), and on about half the days, it’s gone up; there is still no
sign of a downward trend. I’d say it’s more likely my 7% mortality rate will
turn out to be too low after the pandemic’s over and all of the bodies have
been counted, than it will be too high.
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