World Covid Vaccine Made by Chinese Company Sinovac Is Said to Be Effective January 7, 2021January 8, 2021Sui-Lee Wee and Ernesto LondoñoComments Off on Covid Vaccine Made by Chinese Company Sinovac Is Said to Be Effective Sinovac Biotech has sold more than 300 million doses to the developing world, filling a gap left by Western countries.
