[KongchangAI]
Unverified95% confidenceFactTime unknown

保护力通常维持约6-8个月且每年流行株可能变异,需每年重新接种当季更新毒株的疫苗,不能一次接种长期免疫

1
Sources
95%
Confidence
Long-term
Relevance
-
First Seen

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