???????????????,???????????????????????????????·?????????,???????11???:

?,???????????????(2019-nCoV)????????,???????????????????

?,?????????????????????????????100%?????????;??????????(Delta)?????????,???????

?,??????????????????????,???????????,???????????????????????30%-50%?

?,?????????50%-80%????COVID-19????;????????,?????30%-60%?????,??????????30%-60%????????

?,??????????,???????(??????)???,???????????????????????????????,??????;?????????,??????

?,40%???????????????,??????????,?????

?,??????????????0.1%-0.5%?2020???,??COVID-19???????2%,??????3%?2021?12?,??????????????????0.1%,????????75???????????,???????????????????????

?,????????????????????????,?????????85????????,????:????????????????,?????????????

?,???????????????????????,????????????

?,????????????:??????????????????????????????????????????????,??????????????????,???????????

??,????,????COVID-19???,?????????????????,???????????????????????????