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並前往https://www.msn.com/en-us/health/medical/cdc-to-recommend-faster-covid-19-boosters-for-certain-immunocompromised-people/ar-AATuvJu

CDC to recommend faster Covid-19 boosters for certain ... - MSN

People who are moderately or severely immunocompromised have lower vaccine effectiveness, and their vaccine protection wanes over time.

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