Oh yikes. If that’s the case—the sampling was incentivized with a COVID test—we have an answer to the Manaus, Brazil tragedy and puzzle.https://twitter.com/WesPegden/status/1349924706586124294 …
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Does that mean the >70% attack rate for Manaus is probably wrong? Always wondered what the natural attack rate would be without NPIs and at what point herd immunity is achieved.
it doesn't matter. Herd immunity doesn't exist, because the virus mutate at similar speedy that influenza. People who live there think 75% is close to the real number. I don't doubt it neither, because how the city is build and how people live in it
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