Sinovac drug 78% effective in Brazil trial; experts say more details needed
January 08, 2021
January 09, 2021 5:00 AM
SAO PAULO • A coronavirus vaccine developed by China's Sinovac Biotech was 78 per cent effective in a late-stage Brazilian trial, with no severe Covid-19 cases, researchers said, although a lack of data details stirred calls for more transparency.
SAO PAULO • A coronavirus vaccine developed by China's Sinovac Biotech was 78 per cent effective in a late-stage Brazilian trial, with no severe Covid-19 cases, researchers said, although a lack of data details stirred calls for more transparency.