辉瑞疫苗对Omricon有效率在5至12岁的儿童身上仅有12%
https://www.cnbc.com/amp/2022/02/28/pfizer-covid-vaccine-was-just-12percent-effective-against-omicron-in-kids-5-to-11-study-finds.html
ShowMeThePath_1 22-03-01
ShowMeThePath_1 22-03-01