Jason L. Salemi, PhD, FACE Profile picture
Dec 30, 2021 14 tweets 15 min read Read on X
Really, don't blink with this damn variant.

A few striking things I noticed, including a comparison of the #delta & #omicron surges in #Florida.

Nearly 47,000 cases reported today, 7-day avg just under 30,000.

Blows our delta peak out of the water by almost 8000/day.

🧵

1/13
We continue to lead the country in the % increase in average daily cases compared to two weeks prior.

#Florida has had a 991% increase

But the absolute increase is astonishing - we are now averaging nearly 27,000 more cases EACH DAY compared to 2 weeks ago.

2/13
Whereas only a few weeks ago, we had the LOWEST 7-day cases per capita in the country (largely due to the catastrophe that was the #delta surge)...

We're now 4th highest in the country over the last 7 days, behind only NYC, DC, and NJ.

3/13
If you have enough cases, you'll end up with more hospitalizations.

2 weeks ago
- ADULTS HOSPITALIZED: 1189
- KIDS HOSPITALIZED: 24

Now
- ADULTS HOSPITALIZED: 3364 (183% increase)
- KIDS HOSPITALIZED: 90 (275% increase)

Fig below shows the increase during December alone.

4/13
I ALWAYS want to give appropriate context.

The blue box is what I showed you on the previous tweet.

Our current # for adults (3364) is 5 times less than the #delta peak (~17,000).

Our current # for kids (90) is 2.5 times less than the #delta peak (229).

5/13
But here's the thing.

I mapped the change in daily cases and adults hosp with confirmed C19 during the beginning of the #delta and #omicron waves.

Cases are much higher during omicron's first 2 weeks, but look at those hospitalizations.

We've continued to say...

6/13
Even if the severity of #omicron - whether intrinsic severity or severity after you factor in that we are less immunologically naive...

If you end up with a huge surge in cases, the sheer # of hosps may be very similar to #delta, or God forbid higher.

7/13
2 more things about this fig.

1) Look at how that red dashed line is trending

2) b/c I pair cases with hosps 5 days later, this DOES NOT INCLUDE hosps for the most recent 5 days of cases (& these are the 5 highest we've had during #omicron)

29480 25655 23790 22669 21108

8/13
Here's the same figure, but for #kids hospitalized with confirmed #COVID19.

Already way more at this stage than during the #delta surge.

Again, even though the hosp-to-case ratio is lower during #omicron,

Tons of cases = a lot of hospitalizations.

@COVKIDProject

9/13
Again, I can't control the caveats to these data.

1) can't know severity of a given hosp
2) don't know primary reason for hosp
3) don't know how much COVID impacts the hosp

It's still gonna be a considerable problem for our absolutely taxed healthcare professionals.

10/13
Still so much in our #mitigation #toolbox

Perhaps contrary to what you may have heard recently, as I stated when interviewed for this local TV story...

A well-fitting & HIGH-QUALITY mask (eg N95, KN95) is a really good idea. Fits perfectly fine.

wesh.com/article/expert…

11/13
Context tweet: at least some data from a large healthcare system in Florida regarding what is being termed "incidental" COVID-19 hospitalizations.

It's not trivial, which would represent some good news.



14/13

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More from @JasonSalemi

Sep 26, 2023
Brief COVID update

When speaking with NPR last week, I said the plateauing of hospitalizations for 3 weeks made me feel like a downturn was coming.

In FL, the data are suggestive of improvements in the # of people being hospitalized w/ COVID.

1/ Image
The state-specific trends in the COVID hospital census since June 1 also suggest we are seeing a recent decrease in FL (dk purple), the US as a whole (black), and a number of states.

Yes, FL still has among the highest rates, but we also have one of the oldest populations.

2/ Image
If we indeed see a prolonged decrease in COVID hospitalization census, many of the largest states, who have been below previous pandemic years, will start their decrease right as they approach (but do not exceed) 2022 rates.

3/ Image
Read 11 tweets
May 29, 2023
Sorry for the delay everyone, a lot going on personally. But I have modified my dashboard to accommodate the CDC reporting changes.

My site focuses on:
1) Hospitalization-based county risk levels
2) Detailed hosp trends
3) Deaths

with links out for wastewater, variants, vax

1/
The "Risk Indicators" page is similar to the older page, but the data upon which indicators are based has changed. There are no longer "risk levels" and "transmission levels", rather levels based exclusively on "confirmed" COVID hospital admission rates over the prior 7 days.

2/ ImageImageImageImage
The "Hospitalizations" page has not changed much. Still starts out with a Florida-centric look and then gives a lot of state- and age-specific census and admission numbers, rates, and rankings.

3/ ImageImageImageImage
Read 14 tweets
Feb 24, 2023
It's been a while since I've done a #COVID update.

These are national weekly @CDCgov "community levels" based primarily on hospitalization rates.

This past week has been the "best" since April of last year with <1% of the population living in a high-level county.

1/ Image
Of course, this comes with the following caveats according to the CDC, with likely underestimation of levels in Hawaii and Mississippi, and overestimation in several counties in Georgia and Arizona.

2/ Image
Transmission levels are likely to be grossly underreported, but as we look at them over time, are showing modest improvement (LEFT).

This is in agreement with the regional wastewater monitoring data, which also shows improvements over the last 6 weeks (RIGHT).

3/ ImageImage
Read 12 tweets
Dec 2, 2022
1/ Updated my #COVID19 dashboard - wanted to do a quick thread on some clearly emerging trends.

covid19florida.mystrikingly.com
2/ Below are adult inpatient hospital census rates for each state since May 1, 2022. Only "confirmed" (as opposed to suspected) COVID hospitalizations are included.

The orange and red coloring suggests recent increases over the past week. Image
3/ But for context, below are the inpatient census stats for adults throughout the pandemic - for most states, we remain well below the worst parts of the pandemic (not that that should be the bar we are trying to avoid). Image
Read 11 tweets
Oct 16, 2022
1/ I've continued to see graphics like the one below served as evidence that COVID vaccines do not work.

Why? Because the NUMBER of COVID-19 deaths among vax people is nearly the same (or even more than) among unvaccinated people.

Quick 11-tweet thread on why this is misleading
2/ I'm going to keep this SIMPLE. This is NOT about infection-acquired immunity vs. vax-acquired immunity. This is just about counts vs. rates.

Assume that vax efficacy is 90% in people 65+.

Monthly COVID mortality rates:
- not vaccinated (20 per 100k)
- vaccinated (2 per 100k)
3/ Assume 3 different vax realities among seniors in the US, and assume pop of 50 million.

Vax rates of 5%, 50%, and 95%.

In the figure, under each scenario, I show the vax vs. non-vax distribution of:
1. the population
2. COVID deaths
Read 12 tweets
Oct 14, 2022
@cmzimmer1803 - a few thoughts

1/ We absolutely should be concerned with the changing proportions of variants that are ESTIMATED to be circulating in recent weeks.

Due to their characteristics and increasing make-up of new cases, the pose a threat.
2/ Clearly, part of our genomic surveillance efforts are to have TIMELY information when more concerning variants are increasing in relative prevalence. In this case, it appears we lost some time (I was wondering why those variants were not yet showing up).
3/ BUT, I don't tend to jump to an accusation of something nefarious.

The beginning of the footnote states that variants circulating <1% are grouped into "other". Image
Read 6 tweets

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