The COVID-19 vaccine developed by Pfizer and its German partner BioNTech remains 91% effective at protecting against coronavirus for at least six months after the second dose.
from New York Daily News https://ift.tt/3m9xxHI
The COVID-19 vaccine developed by Pfizer and its German partner BioNTech remains 91% effective at protecting against coronavirus for at least six months after the second dose.
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