22 outubro 2020
CDC rewrites definition for coronavirus 'close contact'
CDC rewrites definition for coronavirus 'close contact': Under the old definition, “close contact” was defined as being within
6ft of an infected person over a solid block of 15 minutes or more. That
has now been amended to cover a cumulative 15 minutes or more over a
24-hour period.
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The Tricky Math of COVID-19 Herd Immunity : Herd immunity differs from place to place, and many factors influence how it’s calculated.
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StayAway Covid: após 38 mil casos, foram gerados apenas 730 códigos de infectados : Entre dois milhões de downloads e mais de 38 mil doe...
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A flood of coronavirus apps are tracking us. Now it’s time to keep track of them. So far we have documented 25 individual, significant auto...