SAN FRANCISCO -- Moderna announced people may need a second booster to increase protection. But is a fourth shot the right approach? ABC7 News reporter Luz Pena from San Francisco spoke to multiple ...
RUNNEMEDE, New Jersey (WPVI) -- This week, Pfizer asked the FDA for authorization of a second COVID-19 booster shot for senior citizens to fight waning immunity. On Thursday, Moderna asked for that ...
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