Tag: booster shot

Fourth COVID-19 vaccine dose authorised for Americans over 50

March 31, 2022

The Head of the US Food and Drug Administration (FDA)’s Center for Biologics Evaluation and Research, Peter Marks, has encouraged getting a second booster dose of either the Pfizer-BioNTech or Moderna COVID-19 vaccine for increased protection for high-risk persons. The FDA has already approved a second booster shot or fourth mRNA vaccine dose for American […]

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