@forgedcoupon @BillHanage Population age/health, vaccination, and transmission are all major factors. Vaccination takes about 20-30 years off effective age.
@人口年龄/健康、疫苗接种和传播都是主要因素。接种疫苗会使有效年龄降低20-30岁。
@forgedcoupon @BillHanage Population age/health, vaccination, and transmission are all major factors. Vaccination takes about 20-30 years off effective age.
@人口年龄/健康、疫苗接种和传播都是主要因素。接种疫苗会使有效年龄降低20-30岁。