Covid Epi Weekly: Best of Times, Worst of Times

The third US surge is fading fast but variants, some ominous, are spreading fast. Vaccination is picking up steam but we're failing to address equity and pandemic fatigue is high. We must hang on until most of us are vaccinated. 1/
The fundamental question is whether we’ll have a 4th surge. If we do it will cost lives and also increase the risk of more dangerous variants spreading widely. But first good news: dramatically fast decline in cases and positivity. Steeper decline than in either prior surge. 2/
The thing about masks, not traveling, and minimizing time sharing indoor air with people not in our household? It works. It’s war against the virus. Any time we let down our defenses, it attacks. When we let down our guard (and masks), we are complicit with our viral enemy. 3/
But is this the calm before the variant storm? Spikes in cases in other countries with variants are scary. Variants doubling in a bit over a week in the US. First case found in a prison. No time for complacency – masks and distancing stop even the more transmissible strains. 4/ Modeling article showing that more transmissible variant cou
As CDC put it in their weekly summary which debuted today: “Better, but not good enough”. Sign up for their weekly newsletter at: bit.ly/30Fj11C. Hope they add test positivity next week. See @NYTimes graphic below: Way better than December, way worse than September. 5/
And there are warning signs, including in NYC, where test positivity is not decreasing (below from @NYChealthy). In the battle against Covid, a stalemate favors the virus. The next few weeks crucial: If we don’t maintain discipline, viral variants can cause explosive spread. 6/
But what is even more ominous is preliminary data from Novovax trial in South Africa. Previous infection did not protect against reinfection with variant strain: rates of COVID-19 among placebo group 7 days post-dose 1:
Seronegative: 3.9% (58/1494)
Seropositive: 3.9% (26/674)
7/
People born with severe immune deficiencies can harbor (and spread) the polio virus for years, and there has been work to identify and work on treating and curing these people. Evolution/recombination in immunosuppressed people is one theory for the rapid variant changes. 8/
Picking up vax pace, now 1.6 million doses/day. Pfizer & Moderna are promising to basically double deliveries in next few weeks. Hope they keep that promise. We must do MUCH better on equity. Black/Latinx have 2-3x risk of death and ½ likelihood of vaccination. Not acceptable. 9/
The math is harsh. 70M doses sent to states. 364M doses needed for groups 1A,B + those w/ underlying conditions in 1C. And that would leave out people age 50-64 who are high risk, including those not aware of their underlying conditions. Two more months of scarcity, at least. 10/
Nursing home vax likely to drive deaths there down by mid-March, and this will also reduce overall case fatality ratio significantly. Israel’s data is encouraging. Comparison between population age 0-59 years old (orange line) and 60+ (blue line). bit.ly/3qd2VpY 11/
Good new CDC guidance on schools. Mask. Distance. Test if possible. Vaccinate as soon as possible. Teachers are and should be priority for vax; we wish we had enough for everyone now, but we don’t. Schools, esp, K-8, should open with safety measures. bit.ly/3qiKfoL 12/ Guidance on safer reopening of schools released by @ResolveT
Today I published an article in the @WSJ (open access) on how to prevent the next pandemic. @ResolveTSL has worked with partners on this for the past 4 years. It’s now or never; a teachable moment like no other in our lifetimes.
I suggest a global target: 7-1-7. Every country, every community should be able to find an outbreak in 7 days, investigate and report in 1, and respond effectively in 7. Success will take money, technical skill, collaboration, persistence. Our children’s safety depends on it. 14/
Six steps to meet 7-1-7 target
-Agree on target
-Build country capacity with collaboration among lower-income countries
-Improve global institutions with WHO as anchor and key role for Global Fund
-Get money–at least $5-10B/yr additional for countries
-Collaborate
-Act now
15/
Hang in there. The pandemic won’t go on forever. By the fall, we'll be in a much better situation. Mask up and limit time indoors with people not in your household. Vaccines are coming and we're learning more every day about Covid and how to prevent and treat it. 16/
No winter lasts forever; no spring skips its turn.
Hal Borland

17/
When day comes we step out of the shade,
aflame and unafraid,
the new dawn blooms as we free it.
For there is always light,
if only we're brave enough to see it.
If only we're brave enough to be it.

Amanda Gorman, US National Youth Poet Laureate

18/End of thread

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More from @DrTomFrieden

6 Feb
Covid Epi Weekly: Don’t Ease Up on the Brakes!

Variants are coming—but so are vaccines. Let’s double down on protection protocols (masks, distance), scale up equitable vaccine delivery, spur innovation in vaccination and control measures. We can avoid another, steeper curve.1/ Graph courtesy Tony Fauci
First, encouraging news. Cases, hospitalizations and percent positivity plummeting in all ages, all parts of the country, and deaths have begun to decline. Now the bad news: infections are still VERY high, as high as the peak of prior surges. Can’t ease up on the brakes now! 2/
Most likely explanation for the rapid rise and rapid fall: travel accelerates viral spread exponentially. We’re recovering from the huge amount of ill-advised travel and indoor contact over the holidays. And, far too many are not recovering. More than 20,000 died last week. 3/
Read 24 tweets
30 Jan
Covid Epi Weekly January 29: To Arms, to Arms!

Let’s focus:
Get doses out of freezers and into arms ASAP
Denominators: What % of nursing home residents and staff have been vaccinated?
Improve equity. Reach Black, Latinx, Native American, and all underserved groups now.

1/thread
First, let’s get clear about the epidemiology. Better does NOT mean good!! In this case, it means less terrible. The peak of hospitalizations in the prior two surges was 60,000 and we’re at 100,000. So our decreased number is higher than any prior peak. 2/
Thanks @NYTimes for working with @ResolveTSL to provide information on risk in every community. I’m horrified to see communities opening because things are “better” when risk is still very very high, as is the risk of new, more infectious variants. 3/ nyti.ms/2MglGKu
Read 22 tweets
27 Jan
LAUNCHED TODAY: Our team at @ResolveTSL worked with @NYTimes on an interactive risk alert tracker so you can see detailed information on risk in your community—and guidance on how to stay safe. 1/
We check the weather before we leave our homes. Now there's a new way to check how much Covid is "raining" in all 3,000+ U.S. counties. 2/
Although state and county health departments share Covid data, there are often big differences in what gets reported and how. 3/
Read 9 tweets
23 Jan
Covid Epi Weekly Jan 22: Racing Against Mutants!

The post-holiday flood cresting but cases, hospitalizations and deaths remain astronomically high. Viral mutants increasingly concerning. Vaccination is our best tool but only one of several we must use more and better. 1/17
Although the wave is cresting, last week cases (3x), hospitalizations (2x), and deaths were still far higher than at any point before the current surge. National positivity decreased from 15% to 12%. A flood with receding waters is still a flood. bit.ly/39WQ9VF 2/
Reported cases don’t necessarily reflect community risk. E.g., NYS has higher rate than Tennessee, but Tennessee tests at 3x lower rate, with much higher percent positivity. Tennessee likely diagnosing smaller proportion of its COVID-19 cases than New York. Risk is higher. 3/
Read 17 tweets
16 Jan
Covid Epi Weekly: Could Covid Kill 1 Million Americans?

New strains are a shot across the bow. A message from the virus: We outnumber you. We’re more persistent. We change and adapt.

It’s up to us: Fight smarter. Collaborate. Protect ourselves and each other better. 1/thread
First, the numbers. Cases, hospitalizations, deaths continue to increase; expect continuing increases. The scale of cases is mind-boggling. More than 1.6 MILLION diagnosed last week - maybe a million total infections a day. bit.ly/2XLsamQ 2/
May be the beginning of a plateau of hospitalizations; too soon to be sure. If we could scale up infusion of monoclonal antibodies for people at risk for hospitalization but not yet very ill, we could reduce this number and the stress on health workers and health systems. 3/
Read 24 tweets
14 Jan
People who have been vaccinated may think they no longer need to wear a mask or distance from others. Not true.
First, even highly effective vaccines aren’t 100% effective.
Second, we don’t yet know if the vaccine protects against infection or only against illness. In other words, a vaccinated person might still be able to spread the virus, even if they don’t feel sick.
Read 6 tweets

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