新冠疫苗加强针
booster doses of COVID-19 vaccine

浙江、河南以及广东地区的卫生健康部门先后发布信息表示，将从本月起启动新冠疫苗加强针的接种。
Guangdong, Zhejiang and Henan provinces will start administering booster doses of vaccine to residents this month to strengthen their immunity to COVID-19 as sporadic outbreaks are reported in some parts of China. Those targeted for a third dose are people aged 18 to 59 who received two doses of inactivated coronavirus vaccine at least six months ago, authorities said.