How Long Does COVID Immunity Last After a Booster Shot?
https://www.aarp.org/health/conditions-treatments/info-2022/booster-shot-immunity.html
Feb 24, 2022 · Research collected during the omicron wave and published by the Centers for Disease Control and Prevention (CDC) found that about two months after a Pfizer-BioNTech or Moderna booster shot, the vaccine’s effectiveness against hospitalization was around 90 percent. Four months out, it was about 80 percent, which top infectious disease expert Anthony Fauci, …
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