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Brazil data shakes confidence in China's Sinovac coronavirus vaccine

January 13, 2021. Summarized by summa-bot.

Compression ratio: 21.8%. 1 min read.

A Covid-19 vaccine developed by China’s Sinovac Biotech was just 50.38% effective in late-stage trials in Brazil, significantly lower than earlier results showed, according to a statement published by the government of São Paulo Tuesday.

A Covid-19 vaccine developed by China’s Sinovac Biotech was just 50. 38% effective in late-stage trials in Brazil, significantly lower than earlier results showed, according to a statement published by the government of São Paulo Tuesday.

Last week, ANVISA told the Butantan Institute that in order to approve the emergency use of a vaccine, the global efficacy rate had to be disclosed to the public -- information the institute did not receive from Sinovac at the time, according to CNN Brasil sources.

Sigal, Moore, and other scientists who are studying the E484K mutation still have to complete their work in the lab to see if the vaccine is less effective against this new variant.

The US Centers for Disease Control and Prevention said Tuesday it will require a negative Covid-19 test from all air passengers entering the United States -- a move it says may help slow the spread of the coronavirus.

More than 9 million people have received the first shot of their coronavirus vaccine and more than 27 million doses have been distributed, the US Centers for Disease Control and Prevention said Tuesday.

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