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Brazil researchers now say China’s Sinovac vaccine is 50% effective — lower than announced earlier – CNBC
The Butantan Institute had said last week that CoronaVac was 78% effective among volunteers with mild to severe infections, reported the Wall Street Journal.
Covid-19 vaccines developed by China’s Sinovac Biotech are displayed during a press conference in Beijing on Sept. 24, 2020.
The Covid-19 vaccine developed by China’s Sinovac Biotechis just 50.4% effective in a Brazilian trial barely meeting the threshold for regulatory approval and well below the initially reported efficacy rate, according to several media reports.
Brazil is the first to complete late-stage trial of the vaccine CoronaVac. The state-run Butantan Institute has been criticized by…
