TAIPEI, Taiwan (AP) — Chinese vaccine makers are looking at mixing their jabs and whether a booster shot could help better protect against COVID-19. Sinovac and Sinopharm, the two Chinese manufacturers that combined have exported hundreds of millions of doses all over the world, say they’re are considering combining their vaccines with those from other companies. The company, a subsidiary of state-owned Sinopharm, made two inactivated COVID-19 vaccines and a third in clinical trials. Sequential immunization means mixing different vaccines and it is a strategy that could boost efficacy rates, said Ashley St. John, an immunologist at Duke-NUS Medical School in Singapore. CanSino, another Chinese company that has created an adenovirus-vector vaccine, said they were looking at the effects of a booster shot of their own vaccine six months after the first dose.

Source: Egypt Independent April 28, 2021 08:03 UTC