To understand why this is encouraging vaccine news, note that this is a *cluster* (overdispersed pathogen) *among the elderly* (vulnerable population) *who live together* (allows high attack rate). So way worse scenario compared with trials but vaccines *still* highly protective.https://twitter.com/BillHanage/status/1384968364460843016 …
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Now the big question is, how much more fitness can this virus get or it’s almost used up it’s possible ways to mutate.
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