北京 — 总共 13 COVID-19 疫苗的类型, 批准有条件上市或紧急使用, 现在可以在中国作为第二剂加强剂, 据国务院机构间 COVID-19 应对工作组的专家称. 在选择第二剂加强剂时首选 Omicron 抗性疫苗, 国务院联防联控机制专家表示 …

北京 – China’s two most widely used COVID-19 vaccines, developed by Sinovac and Sinopharm, were shown to be effective against the Delta variant of the coronavirus, a study based on real-world data in the country showed on Tuesday. The two vaccines were 52% effective against Delta infection and 60% for symptomatic disease, researchers wrote in a peer-reviewed paper. The study …