» » » Coronavirus | Pfizer studying effects of 3rd vaccine dose

Pfizer said it will offer a third dose to 144 volunteers, drawing from people who participated in the vaccine’s early-stage U.S. testing last year.

https://ift.tt/eA8V8J< February 25, 2021 at 06:22PM> from The Hindu - International https://ift.tt/2NBD1hu

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