I've heard this. IIRC creating a vaccine against coronaviruses is a new challenge, and it's not like H1N1 where you can plug in a different strain into the well-established flu vaccines.
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Herd immunity will likely kick in sooner.
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Hey Mr MD ever hear of heard immunity?
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We don’t know if getting sick, leads to immunity and if so, for how long.
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Can't rely on herd immunity if we don't have mass serological testing. Also still unclear if immunity is permanent, and what percent of pop must be immune.
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