China’s Sinovac Covid-19 vaccine proves more than 50 per cent effective in Brazil trials | South China Morning Post

The Covid-19 vaccine developed by China's Sinovac Biotech was found to be more than 50 per cent effective based on analysis of its phase-three trial conducted in São Paulo state, Brazil. The announcement, made by Brazilian trial partner Butantan Institute on December 23, 2020, marks a major step forward for the Chin…

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