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Americans will know if third booster shot is needed by fall: Fauci
Updated: 2021-04-19 13:35:29 KST
The top infectious disease expert in the U.S., Dr. Anthony Fauci, says Americans will know by autumn whether they'll need a third vaccine shot.
Speaking Sunday to ABC's "This Week," Dr. Fauci said it'll depend on when immunity starts to weaken, which is likely to be determined by summer or fall.
The CEO of Pfizer suggested last week that people will likely need a third booster shot within six to 12 months after being fully vaccinated.
A similar time frame has also been suggested by Moderna and Johnson and Johnson.
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