#Seropositive

The story of Manaus is worrisome1. Manaus, Amazonas, Brazil had an overwhelming initial surge (44% seropositive, likely 76% infected)2. Cases now surging again3. Mutant variants found spreading4. Variants like the
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I’m convinced that seroprevalence studies greatly underestimate the true level of immunity of a given population to COVID. Take Sweden: point is not whether they did the right thing. I
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I'm seeing this making the rounds this morning. I have issues with it, specifically two of the claims.1. It's never been shown whether re-positive patients are contagious or not. (It
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New serology from Iquitos, Peru (~426k) has now been published. The serology covers two periods - a baseline study in July (2 months after the peak of the 1st wave
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The Great Covid-19 Reset View the full video here:https://youtu.be/dlr5Hsd_NkI  In late 2017, the EcoHealth Alliance, in conjunction with the NIAID and the Wuhan Virology Lab, published a paper titled, "Serological
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Worrisome discovery—Among placebo group for Novavax’s vaccine in South Africa: people with prior #COVID19 infections appeared just as likely to get sick as people without prior infections—means past infection wasn’t
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1. The pre-print (not yet peer reviewed) of recent results from our national, community-based CHASING COVID Cohort study of SARS-CoV-2 is out (http://bit.ly/3arAvmB ). We looked potential risk factors for SARS-CoV-2
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People can't stop talking about schools and #COVID19 Here's a thread on school transmission studies!Summary:- If prevalence high in the community, it will be high in schools and some will
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Covid Epi Weekly: Best of Times, Worst of TimesThe third US surge is fading fast but variants, some ominous, are spreading fast. Vaccination is picking up steam but we're failing
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REINFECTION WARNING from the WHO. “We are now getting reports of people getting reinfected with a new variant—from (#B1351)—suggesting people who’ve had prior infection could get infected again.” says
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Our latest #COVID19 preprint “Clinical Sensitivity and Interpretation of PCR and Serological COVID-19 Diagnostics for Patients Presenting to the Hospital”A thread on the interpretation framework we @MGHpathology are using to
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Okay, I'm seeing a lot of "the end is nigh"-type posts as well as a lot of people misunderstanding this story, so let's talk about "pandemic potential" for #influenza viruseshttps://www.bbc.com/news/health-532187
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Day 2 of the NIH #LongCovid conference.First up w Dr. Carlos del Rio on social determinants of health, race, and ethnicity in #LongCovid-the pandemic has exacerbated health inequalities-this is not
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New thread on #AllisonPearson! Continuing from the old thread linked belowhttps://twitter.com/Gurdur/status/1346027240887300096 2/n Just an idle note on the irony: now that Brexit has happened, UK citizens may not be able
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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
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1/ Covid (@UCSF) Chronicles, Day 322Today, an update on local situation. Then my take on a few issues of the day. There’s some great news, some good news, & some
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