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China's Sinovac Vaccine Inadequate Against Omicron Variant, Study Finds
Posted
December 15, 2021
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0:49Now PlayingThe vaccine made by Sinovac Biotech Ltd., one of the most widely used in the world, doesn’t provide sufficient antibodies in two doses to neutralize the omicron variant and boosters will likely be needed to improve protection, initial lab findings showed.
While the first two studies to be released on the Chinese shot and omicron diverged on how much the vaccine’s immune response is degraded, they both indicated the standard two-dose course would not be enough, raising uncertainty over a shot relied on by millions of people in China and the developing world to protect against Covid-19.
Among a group of 25 people vaccinated with two Coronavac doses, none showed sufficient antibodies in their blood serum to neutralize the omicron variant, said a statement from a team of researchers at the University of Hong Kong released late Tuesday night.
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