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China's Sinovac defends COVID-19 vaccine after disappointing Brazil data


China s Sinovac defends COVID-19 vaccine after disappointing Brazil data
FILE PHOTO: Media tour at Chinese vaccine maker Sinovac Biotech in Beijing
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China s Sinovac Biotech defended the safety and efficacy of its experimental COVID-19 vaccine on Wednesday, after researchers in Brazil released late-stage clinical data showing efficacy that was much lower than initially announced.
The vaccine was just 50.4% effective at preventing symptomatic infections in the Brazilian trial, including data on very mild cases, researchers said on Tuesday.
Last week, they said the vaccine, called CoronaVac, showed 78% efficacy against mild-to-severe cases.
The news prompted Malaysia and Singapore, which have purchase agreements with Sinovac, to say on Wednesday that they would seek more data from the Chinese firm on efficacy rates before they approved and bought supplies. ....

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UPDATE 2-China's Sinovac defends COVID-19 vaccine after disappointing Brazil data


Had reported 78% efficacy in mild-to-severe cases
Chairman says results are good around the world
Malaysia and Singapore seeking more data (Recasts to add details from Sinovac executive, Thailand and Singapore, and background)
KUALA LUMPUR/SINGAPORE, Jan 13 (Reuters) - China’s Sinovac Biotech defended the safety and efficacy of its experimental COVID-19 vaccine on Wednesday, after researchers in Brazil released late-stage clinical data showing efficacy that was much lower than initially announced.
The vaccine was just 50.4% effective at preventing symptomatic infections in the Brazilian trial, including data on “very mild” cases, researchers said on Tuesday.
Last week, they said the vaccine, called CoronaVac, showed 78% efficacy against “mild-to-severe” cases. ....

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Chinese COVID-19 vaccine downgraded from 78 to 50 per cent efficacy

Sinovac Biotech chairman says the results show their vaccine s safety and effectiveness are good around the world ....

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