北京 — 總共 13 COVID-19 疫苗的類型, 批准有條件上市或緊急使用, 現在可以在中國作為第二劑加強劑, 據國務院機構間 COVID-19 應對工作組的專家稱. 在選擇第二劑加強劑時首選 Omicron 抗性疫苗, 國務院聯防聯控機制專家表示 …

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 …