美國的bnt,moderna,多的是，但它們最近delta患者爆增，cdc要求人民要把口罩戴回去，看來別以為打了疫苗就百毒不侵 ，戴口罩雖傳統，但很重要，我們也靠口罩面罩將疫情壓下來

No response has been written yet. It is recommended to maintain a healthy skepticism towards it.