#herdimmunity

Dr. Abdul El-Sayed explains the measles outbreak in Florida, why we should take it seriously, and what their state’s “surgeon general” advised instead. #measles #cdc #florida

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#英国 #疫苗 #疫情 【迷斯英国】Delta变种的英国故事：Pfizer/辉瑞以及AZ/阿斯利康还有效吗？ 截至七月初，英国已有近70%人口至少接种了第一剂疫苗，接种率遥遥领先。胜利曙光就在眼前时，英国疫情又迅速反弹，但政府仍然坚持从7月19日起英格兰完全解封。为什么英国成为Delta