China Zhifei's COVID-19 vaccine shot largely retains effect against Delta variant: Lab study

BEIJING: A COVID-19 vaccine developed by a unit of China's Chongqing Zhifei Biological Products largely retained its neutralising effect against the Delta variant but there was a slight reduction, Chinese researchers found in a laboratory study.

Scientists and regulators are watching closely to see whether the Delta variant, which is significantly more contagious than the original variant of the coronavirus, will render available vaccines and treatments insufficient.Tested against particles mimicking the real Delta variant, serum samples from people vaccinated with Zhifei's three-dose regimen showed a 1.

However, researchers cautioned that data from clinical trials or real-world use were still necessary to determine how well the shot can prevent people from getting sick by the variants.AdvertisementThe study, where samples from 28 people were collected and tested, also found that samples from those who received their third dose at longer intervals between the second shot showed a greater activity against variants.

More than 100 million doses of Zhifei's vaccine, dubbed ZF2001 and approved for emergency use in China and Uzbekistan, have been administered, the paper said. Authors of the paper include researchers from Institute of Microbiology at Chinese Academy of Sciences, which is jointly developing the vaccine with Zhifei's unit, and other Chinese institutions.

数据呢

If u feel yr life is worthless and too long. Pls proceed

CCP? Wheee everything is political and face saving. Trustworthy?

Is this inactivated? And how come Sputnik & CanSino Biologics uses the same viral vector as Janseen (J&J) but didnt heard of serious adverse effects

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