US’s @CDCgov said new mask guidance was informed by outbreak this month on Cape Cod, where vaccinated people infected with the #CovidDelta variant appeared to carry as much virus as those in unvaccinated cases https://bit.ly/2V09WjP
— MasterFeeds (@MasterFeed) Jul 31, 2021
From @MasterFeed
July 31, 2021 at 09:55AM
via MasterFeeds
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