Pfizer CEO：需要打第四針！

來源: 於 2022-03-13 15:10:06 [舊帖] [給我悄悄話] 本文已被閱讀：次

A 4th dose of Covid-19 vaccine will be needed, Pfizer's CEO says, but the
company is working on a shot to handle all variants

 

https://www.cnn.com/2022/03/13/health/pfizer-vaccine-4th-dose/index.html