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Lin mark this message contains personal perspective
originally written by Lin
流感疫苗之保護力因年齡或身體狀況不同而異,平均約可達30-80%,對健康的成年人有70-90%的保護效果。對老年人則可減少50-60%的嚴重性及併發症,並可減少80%之死亡率。
此外,疫苗保護效果亦需視當年疫苗株與實際流行的病毒株型別是否相符,一般保護力會隨病毒型別差異加大而降低。

Opinion Sources

https://www.cdc.gov.tw/Category/QAPage/RJ6gxWhhbZIqMrTMBlWPlQ

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