With more than 156 million Americans fully vaccinated, nationwide, approximately 153,000 symptomatic breakthrough cases are estimated to have occurred as of last week, representing approximately 0.098% of those fully vaccinated, according to an unpublished internal Centers for Disease Control and Prevention document obtained by ABC News. These estimates reflect only the adult population and do not include asymptomatic breakthrough infections.
約為千分之一的發病率，應該反應實際情況。
上麵CDC的數據太粗糙，是上報而未核實的數據。沒症狀的都去住院了，太扯了。為了混個免費醫療，胡縐八扯。
