Did the Sturgis rally lead to 250,000 new cases?
This
morning, the Washington Post briefly mentioned a new paper from San Diego State University that
says the ten-day Sturgis, SD motorcycle rally, which attracted about 500,000
people in early August, probably led to 250,000 new cases nationwide, or one
fifth of total new cases reported in the US from August 2 through September 2.
The paper also states that the public health cost of this event will be over
$12 billion.
Of
course, Gov. Kristi Noem staunchly defended allowing the rally to proceed, saying
she wouldn’t dream of violating the principle that everyone is personally
responsible for their own actions. So she needs to live up to her words and
take personal responsibility for that $12 billion, as well as the probably
hundreds of deaths that will result from her decision. I suggest she start
diverting her paycheck to the US Treasury starting tomorrow. She’ll have the whole
bill paid off in 60,000 years, no problem.
The numbers
These numbers are updated
every day, based on reported US Covid-19 deaths the day before (taken from the
Worldometers.info site, where I’ve been getting my numbers all along). No other
variables go into the projected numbers – they are all projections based on
yesterday’s 7-day rate of increase in total Covid-19 deaths, which was 3%.
Note that the “accuracy”
of the projected numbers diminishes greatly after 3-4 weeks. This is because,
up until 3-4 weeks, deaths could in theory be predicted very accurately, if one
knew the real number of cases. In other words, the people who are going to die
in the next 3-4 weeks of Covid-19 are already sick with the disease, even
though they may not know it yet. But this means that the trend in deaths should
be some indicator of the level of infection 3-4 weeks previous.
However, once we get
beyond 3-4 weeks, deaths become more and more dependent on policies and
practices that are put in place – or removed, as is more the case nowadays -
after today (as well as other factors like the widespread availability of an
effective treatment, if not a real “cure”). Yet I still think there’s value in
just trending out the current rate of increase in deaths, since it gives some
indication of what will happen in the near term if there are no significant
intervening changes.
Week
ending
|
Deaths
reported during week/month
|
Avg.
deaths per day during week/month
|
Deaths as
percentage of previous month’s
|
March 7
|
18
|
3
|
|
March 14
|
38
|
5
|
|
March 21
|
244
|
35
|
|
March 28
|
1,928
|
275
|
|
Month of
March
|
4,058
|
131
|
|
April 4
|
6,225
|
889
|
|
April 11
|
12,126
|
1,732
|
|
April 18
|
18,434
|
2,633
|
|
April 25
|
15,251
|
2,179
|
|
Month of
April
|
59,812
|
1,994
|
1,474%
|
May 2
|
13,183
|
1,883
|
|
May 9
|
12,592
|
1,799
|
|
May 16
|
10,073
|
1,439
|
|
May 23
|
8,570
|
1,224
|
|
May 30
|
6,874
|
982
|
|
Month of
May
|
42,327
|
1,365
|
71%
|
June 6
|
6,544
|
935
|
|
June 13
|
5,427
|
775
|
|
June 20
|
4,457
|
637
|
|
June 27
|
6,167
|
881
|
|
Month of
June
|
23,925
|
798
|
57%
|
July 4
|
4,166
|
595
|
|
July 11
|
5,087
|
727
|
|
July 18
|
5,476
|
782
|
|
July 25
|
6,971
|
996
|
|
Month of July
|
26,649
|
860
|
111%
|
August 1
|
8,069
|
1,153
|
|
August 8
|
7,153
|
1,022
|
|
August 15
|
7,556
|
1,079
|
|
August 22
|
7,552
|
1,079
|
|
August 29
|
6,675
|
954
|
|
Month of August
|
30,970
|
999
|
116%
|
September
5
|
5,961
|
852
|
|
September
12
|
5,956
|
851
|
|
September
19
|
6,140
|
877
|
|
September
26
|
6,329
|
904
|
|
Month
of Sept.
|
25,644
|
855
|
83%
|
Total
March – September
|
213,385
|
|
|
Red = projected
numbers
I. Total deaths
Total US deaths as of
yesterday: 193,541
Deaths reported yesterday:
288
Percent increase in total
deaths in the last seven days: 3% (This number is used to project deaths in
the table above; it was 4% two days ago. There is a 7-day cycle in the reported
deaths numbers, caused by lack of reporting over the weekends from closed state
offices. So this is the only reliable indicator of a trend in deaths, not the three-day
percent increase I used to focus on, and certainly not the one-day percent
increase, which mainly reflects where we are in the 7-day cycle).
II. Total reported cases
Total US reported cases: 6,485,837
Increase in reported cases
since previous day: 25,416
Percent increase in reported
cases in the last seven days: 5%
III. Deaths as a percentage of closed cases so far in the US:
Total Recoveries in US as
of yesterday: 3,758,629
Total Deaths as of yesterday:
193,541
Deaths so far as
percentage of closed cases (=deaths + recoveries): 5%
For a discussion of what this number means – and why
it’s so important – see this post. Short
answer: If this percentage declines, that’s good. It’s been steadily declining since
a high of 41% at the end of March. But a good number would be 2%, like South
Korea’s. An OK number would be 4%, like China’s.
IV. 7-day average of
test positive rate for US: 5.4%
For
comparison, the recent peak for this rate was 27% in late July, although the peak
in late March was 75%. This is published by Johns Hopkins (recent rates for New
York state: .8%. For Texas: 11.2%. For Florida: 12.3%. For Arizona: 7.2%).
I
would love to hear any comments or questions you have on this post. Drop me an
email at tom@tomalrich.com
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