CoronaVac’s Overall Efficacy in Brazil Measured at 50.4%

Caixin Global | Jan 13, 2021 at 2:13 PM

— Brazil officials said the CoronaVac vaccine developed in partnership with Sinovac Biotech Ltd. was 50.38% effective in preventing coronavirus cases, a number that meets the threshold required by global regulators for approval but that’s well below the 78% figure announced last week.