福西昨天说打加强针可能成为全免疫的新标准， 前几天CDC还说没计划一定要求第3针

A third shot (booster) isn’t the end. It’s just the start.https://t.co/n3TjI4wHrd

— Jeff Harris (@TheVotersSay) November 18, 2021

Clockwork. (These were 13 days apart.) pic.twitter.com/7pmCU755Ct

— Ben Williamson (@_WilliamsonBen) November 18, 2021