tl;dr
* crisis level: 270 cases/day (28.8 per 100k)
* that's +73% over 1wk, +138% over 3wks
* it's also back above where Harvard says shutdowns are necessary
* our current 36k total cases will double as early as Jan1
A reminder: Harvard's Global Health Institute says that 25 daily cases per 100k is the "tipping point" where stay-at-home orders become necessary.
We're at 29 per 100k.
We've lost control of the spread.
4/
Here's the health dept's chart of cases/day, btw. You can clearly see that the trendline is headed up.
(NOTE: This graphs the data by specimen collection date, which is not publicly available, but it lags by 6 days. I graph cases by the date they are reported to the public.)
5/
Here is testing, since reopening &since Sept1.
Until a few wks ago, they only reported tests for ppl never tested before. That's the blue line, w/the 7-day avg in red.
Now they are also reporting total tests. I've added that here in the green line, w/the avg in yellow.
6/
It's clear that testing does not explain the spike in cases bc testing can't keep up with case growth.
And the lack of testing means we are missing cases.
To repeat: Our case counts are artificially low bc of low testing.
+49% over 1wk (cases +73%)
+39 over 4wks (vs +108%)
7/
Case positivity has risen from 10.8%+ to 16.2%+ over the past 3wks. The 2nd highest wk on record.
Test positivity hit a wkly low of 5.3%, but has risen over the past 3wks to 7.2%+ today. That's the highest on record.
8/
Covid hospitalizations are way up too.
With cases spiking even more in surrounding rural counties, this is a big concern, as they are already starting to send patients to Memphis hospitals.
I worry that we'll have to open the old CA building before Christmas.
9/
Here's the graph of daily cases again.
Look at that red line (7-day avg) back in June and into July: 116, 183, 196, 316...425.
Now look at it in October: 114, 154, 156, 270...???
We're staring right at another July, but with Thanksgiving, Christmas, and New Year on deck.
10/
With our current growth rate, with total cases growing 0.8% per day, we're looking at 371/day by Thanksgiving.
But growth is increasing.
And at 0.9%, it's 430/day. At 1%, it's 494.
We could see over 500/day by T'giving & 700/day by New Year if we don't slow the growth.
11/
Case 10k, July1 (105 days).
Case 20k, July29 (28 days).
Case 30k, Sept19 (52 days).
Case 40k will come Nov4-7 (46-49 days).
Case 50k will come Nov27-Dec5 (23-28 days).
Case 60k, Dec15-28 (18-23 days).
Case 100k, Feb4-Mar2.
Case 150k, Mar17-Apr22.
12/
After today's 414 new cases today, we're now at 35,901 total cases.
And we'll double that sometime between Jan1 and Jan20.
By New Year, another 350 people will die of covid locally. And 350 more by the end of winter.
That's on top of the 563 already dead.
13/
In his thread on Thanksgiving last night, @ASlavitt said the following:
"We could have stayed away Memorial Day and had a good Independence Day. We didn’t. We could have been careful on the 4th & had a good Labor Day. We didn’t. We could have been careful Labor Day. Nope."
15/
Now we're going to need to skip Thanksgiving, Christmas, and New Year's parties. Unless you gather outdoors.
The more we gather and celebrate holidays, the worse this pandemic gets...and the longer it lasts.
I know we're all tired.
But...
WINTER IS COMING.
16/
And winter, here, is metaphorical and literal.
But the literal is the problem. It's cold. And when it's cold, people gather indoors. And that's a recipe for covid spread.
We know that indoors is about 19 times less safe than outdoors. That's what makes winter so dangerous.
17/
On the first day of summer, we were avg'ing 183 cases/day. The last day of summer, 181.
Now, only one-third of the way into fall, we're already up to 270/day.
It'll get worse than the worst of the summer before winter even begins.
Winter will be bad.
18/
This election is crucial.
Trump has failed. The blood of 225k ppl are on his hands.
And McConnell & Senate Republicans refuse to provide financial relief to cities, to states, to businesses, to families. Blood is on their hands too.
I'm not saying we need to implement a shutdown. But we have to do something.
We should think of things on a continuum, rather than a strict binary of open/closed. We do need to be strategic and turn some things down. But that's different from a full shutdown.
21/20
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tl;dr
* 7-day avg: 118 daily cases, 1139 tests, 10.4%+
* cases down 6% over 1wk, 34% over 2wks
* but tests down 6% and 34% too
* so %+ has been flat for 4wks
* also, lowest testing since April!
* and more deception from the mayor
1/
I want to start with this table that @MayorMemphis included in his update yesterday because there are so many things problematic here.
I'll try to correct it.
And then I'll provide the rest of the data.
2/
So, first of all, the data are not clearly labeled. So the 69 total cases, what is that?
Well, it's the number of cases from Wed, 9/9.
And that raises several questions, the first being, why would they use a single-day count rather than a rolling average?
3/
tl;dr
- daily cases are +3% over 6wks, since July 1
- meanwhile, tests are -15%
- up to 28 daily cases per 100k
- at least 3x more testing needed
- we're getting a master class on how to lie with statistics (don't fall for it)
1/
First, the data...
As you can see, both cases and testing have slowed down. We'll talk about this more, but I think it's pretty clear that the drop in testing is directly responsible for the drop in case growth.
2/
Here are daily cases and daily tests reported.
I got some feedback about my trendlines, rec'ing that I change them from linear to polynomial bc it better shows the trends happening.
tl;dr
- hard to know what's actually happening
- testing is WAY down, lowest in 6wks
- that means we're missing cases
- but cases are WAY down, %pos too
- very cautious optimism
- trip wires are finally out, but they are useless
1/
The headliner this wk is that the health dept quietly dropped its long-awaited "trip wires" doc last night.
I'm going to spend a minute on this - I'm so pissed off right now at how worthless this is - so if you want to just see this wk's data, feel free to skip down.
2/
Okay, so first I want to call attention to the fact that the trip wires weren't announced at a briefing, or even via a press release, but rather showed up quietly on the Health Dept socials at 10:22pm on a Friday night.
tl;dr
- record high 425 cases/day this wk
- record high 17% pos
- cases are growing 76% faster than testing
- let's set a goal to open schools after fall break
- shut it down & start over
- we have 3wks if we want school in Q2
1/
Here are total cases, 4 ways:
- since Phase 1/May 3
- since Phase 2/May 17
- Phase 2 thru June 30
- July 1 - Aug 1
- the thing to notice (this is an important & ancient principle in math) is that the more you zoom in, the more the curve looks like a line
- i'll unpack...
2/
When you zoom out & look at cases since Phase 1 or 2, you can clearly see an upward curve, but it's hard to see precisely what's happening.
When you zoom in, it's clear that the curve bent upwards in late June into early July. That's acceleration.
tl;dr
- cases/day are down this wk
- but lest anyone celebrate, testing is down more
- and that's masking the true number of cases
- so positivity rate is above 15%
- w/o testing, lockdown is the only option
- remember march?
1/
14-Day Growth Rate, Cases vs Tests
- as you can see, the blue is above the red
- that means cases are growing faster than testing
- in fact, cases are growing 70% faster
- this tells us the virus is out of control
2/
Avg Covid Cases/Day Per Wk
- as you can see, we're down this wk
- but we know this data are not accurate bc testing is a problem
- we're -13% from last wk, +9% over wk before, = wk before that
- we're +61% over 4wks ago
- now compare these numbers to testing...