RT @WatchChad: How will we know the vaccine is working? Will the survival rate go from 99.7% to 99.8? 0 atbildes

Deimis M.
(2020-12-19 10:05:32)
@twitter
RT @WatchChad: How will we know the vaccine is working? Will the survival rate go from 99.7% to 99.8?

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