Sinovac booster shot reverses drop in antibody activities against Delta study

BEIJING (Reuters) – A booster dose of Sinovac Biotech’s COVID-19 Vaccine Reversed A decline in antibody activities against the Delta variant, a study found, causing some concerns over the longer-term immune response to the highly contagious strain of the virus.

The study comes amid concerns over the efficacy of the Chinese vaccine against Delta, which has become the dominant variant worldwide and is causing a wave in new infections even in the most vaccinated countries.

Multiple countries die have trusted heavily on the Sinovac vaccine has begun met giving booster shots developed by western manufacturers to people fully vaccinated with the Chinese shot.

Neutralizing Antibody Activities against Delta are not detected in monsters taken from vaccine recipients six months after she second dose of Sinovac’s CoronaVac Vaccine, According to Published Study on Sunday for a pear review.

But recipients of booster shots shown over 2.5-fold higher neutralizing potency against Delta approximately four weeks after the third dose, compared met with the level about four weeks after the second shot, Chinese Academy researchers of Sciences, Furan University, Sinovac and other Chinese institutions said: in the newspaper.

They didn’t discuss how specifically changes in antibody activity will affect the efficacy of Sinovac shot in appearance people of getting sick from the variant.

The laboratory study includes monsters from 66 participants, including 38 volunteers who two of received three doses of the vaccine.

The World Health Organization plans to ship about 100 million doses of the Sinovac and Sinopharm COVID-19 shots towards the end of this month, mainly to Africa and Asia, in to be first delivery of Chinese vaccines.

But some countries rejected accepting the vaccines, citing lack of data on their effectiveness against Delta.

About 1.8 billion doses of the Sinovac vaccine was delivered worldwide, including China, at the end of August, according to the company.

(Reporting by Roxanne Liu and Ryan Woo; editing by Miyoung Kim)

Read More: World News

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