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Jeffrey Townsend Profile picture
Jeffrey Townsend
@JeffTownsend
Elihu Professor of Biostatistics—Cancer, Infectious Disease, Ecology and Evolutionary Biology, Fungi, sometimes Running ➗🦀*🐒🍄🏃‍♂️
Jul 11, 2022 • 9 tweets • 5 min read
With COVID-19 surging again, which rapid antigen test to use? @crwells10, @abhiganit, @alison_galvani, others & I compared the temporal efficacy of rapid antigen tests and RT-PCR for COVID-19 quarantine and surveillance.

nature.com/articles/s4385… Many analyses present a single “sensitivity” or do not quantify suppression of individual-level transmission; most address a generalized or single rapid antigen test. So we analyzed 18 RA tests over time for which FDA EUA data was available.

fda.gov/medical-device…
Feb 7, 2022 • 6 tweets • 3 min read
Continuing excellent coverage of the #COVID19 pandemic—and the science of epidemiology—by @FoodieScience and @NPRinskeep.

npr.org/sections/goats… 's comments to @FoodieScience were based on our research estimating the durability of immunity to COVID-19 using comparative phylogenetics.

Oct 4, 2021 • 29 tweets • 15 min read
is pleased to communicate an answer to what has often been called one of the greatest unknown factors regarding #COVID19: the durability of immunity upon natural infection.

thelancet.com/action/showPdf… A @Nature video listed the durability of immunity upon natural infection as one of four questions regarding COVID-19 (1): “This is a big question, and immunologists are working feverishly to determine what immunity to SARS-CoV-2 could look like.”