Drop in Brazilian coronavirus cases prompts herd immunity questions
An unexpectedly positive turn for Brazilian cities once plagued with the coronavirus pandemic is raising questions once more about herd immunity.
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Tuesday, August 25, 2020
FOX NEWS: Drop in Brazilian coronavirus cases prompts herd immunity questions
Drop in Brazilian coronavirus cases prompts herd immunity questions
An unexpectedly positive turn for Brazilian cities once plagued with the coronavirus pandemic is raising questions once more about herd immunity.
via https://ift.tt/2Et1K2Z
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