但是实际情况表明,在几个注射疫苗地区的研究发现,疫苗对新冠有症状确诊的保护率在95%左右,对无症状感染的保护率大约在80%的水平。
但是实际情况表明,在几个注射疫苗地区的研究发现,疫苗对新冠有症状确诊的保护率在95%左右,对无症状感染的保护率大约在80%的水平。
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