<纽约时报>获得的一份CDC内部文件显示，delta变异病毒比MERS、SARS、埃博拉病毒、普通感冒、季节性流感和天花更具传染性，传染性与水痘差不多。“The C.D.C. is very concerned with the data coming in that Delta is a very serious threat that requires action now,” the official said. _新浪新闻

纪春生在美国

21-07-30 12:56 微博认证：2024微博年度新知博主海外新鲜事博主（美国）微博剪辑视频博主

<纽约时报>获得的一份CDC内部文件显示，delta变异病毒比MERS、SARS、埃博拉病毒、普通感冒、季节性流感和天花更具传染性，传染性与水痘差不多。“The C.D.C. is very concerned with the data coming in that Delta is a very serious threat that requires action now,” the official said.