MoneycontrolCOVID-19 vaccine update | China’s Sinovac Biotech vaccine is just 50% effective, say Brazil researchersJan 13, 2021more_vert
CNNChinese Covid-19 vaccine far less effective than initially claimed in Brazil, sparking concernsJan 14, 2021Tatiana AriasBy Tatiana Ariasmore_vert
The New York TimesDisappointing Chinese Vaccine Results Pose Setback for Developing World (Published 2021)Jun 1, 2021Sui-lee Wee & Ernesto LondonoBy Sui-lee Wee & Ernesto Londonomore_vert