Pfizer’s chief says follow-up shots will probably be needed to fight Covid.


By BY REMY TUMIN from NYT World https://ift.tt/32h6VLZ
Pfizer’s chief says follow-up shots will probably be needed to fight Covid. Pfizer’s chief says follow-up shots will probably be needed to fight Covid. Reviewed by Khurram Shahzad on April 16, 2021 Rating: 5

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