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COVID-19 Vaccine Talk, 2nd Dose
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09-18-2021, 08:25 AM
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Knut
Join Date: Oct 2002
Exp:
https://www.cdc.gov/mmwr/volumes/70/wr/mm7038e1.htm
This is probably what places are referencing. Not sure where the 77% comes from.
Knut
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