焦點特寫COVID-19疫苗系列專欄:接種疫苗後的保護力可以持續多久?
https://www.cdc.gov.tw/EpidemicTheme/Detail/HN_bvfRk6F9P3-V-G4NJxQ?archiveId=k4nd15up8aeJWFIpzM1Luw
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