How the Sinopharm vaccine works
In early 2020, the Beijing Institute of Biological Products created an inactivated coronavirus vaccine called BBIBP-CorV. Clinical trials run by the state-owned company Sinopharm showed that it had an efficacy rate of 79 percent. China approved the vaccine and soon began exporting it to other countries. BBIBP-CorV works by teaching the immune system to make antibodies against […]



