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Chinese Covid-19 Vaccine Efficacy Concerns Grow
Posted
April 14, 2021
Views
6,062
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47
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19
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1.09%
April 14, 2021
6,062
47
19
1.09%
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1:44Now PlayingConcern is mounting that China’s Covid-19 vaccines are less effective at quelling the disease, raising questions about nations from Brazil to Hungary that are depending on the shots and the country’s own mammoth inoculation drive.
While vaccines developed by Pfizer Inc., Moderna Inc. and even Russia’s Sputnik shot have delivered protection rates of more than 90%, Chinese candidates have generally reported much lower efficacy results. Research released Sunday showed the rate for Sinovac Biotech Ltd.’s vaccine -- deployed in Indonesia and Brazil -- was just above 50%, barely meeting the minimum protection required for Covid vaccines by leading global drug regulators. Other Chinese shots have reported efficacy rates from 66% to 79%.
The concerns put a question mark over a vast swathe of the global vaccine rollout, particularly in the developing world, with richer countries’ domination of supplies of the highly effective mRNA vaccines seeing nations like Turkey and Indonesia turn instead to China’s shots.
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