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Sinopharm vaccine highly efficient against Delta variant: Study

Sri Jayewardenepura University, have found that China's Sinopharm Covid-19 vaccine is highly efficient against the Delta variant which has become the dominant variant across the world.

IANS IANS
New Delhi Published on: July 21, 2021 14:54 IST
Sinopharm vaccine, delta variant
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Sinopharm vaccine highly efficient against Delta variant: Study

Researchers from one of Sri Lanka's leading universities, the Sri Jayewardenepura University, have found that China's Sinopharm Covid-19 vaccine is highly efficient against the Delta variant which has become the dominant variant across the world. "This vaccine was found very effective for the Delta variant as well. The antibody responses to delta variant and neutralizing antibodies were similar to levels seen following natural infection," the University said.

According to the study, 95 per cent of individuals who received two doses of the Sinopharm vaccine have developed antibodies similar to a naturally infected Covid-19 person, the Xinhua news agency reported.

The study showed that two doses of Sinopharm vaccine produced neutralizing antibodies in 81.25 per cent of recipients and that these antibody levels were similar to what would occur after surviving a natural infection of Covid-19, the Xinhua news agency reported.

The research team included Sri Lankan scientists Prof. Neelika Malavige, head of the Immunology and Molecular Medicine Department of the Sri Jayewardenepura University, her colleague Dr. Chandima Jeewandara and Oxford University researchers Prof. Graham Ogg and Prof. Alain Townsend.

Prof. Neelika said that Sinopharm is the most used vaccine being rolled out in Sri Lanka presently due to the availability of stocks in the country.

To date, 4.63 million people in Sri Lanka have received the first dose of Sinopharm Covid-19 vaccine, and 1.29 million others had received the second dose of the vaccine. No single severe side effect case relevant to the vaccine has been reported.

Prof. Malavige said that this study is the first of its kind to be published in the world and experts looked at every possible angle of the immune system from the Sinopharm jab.

The vaccine was also compared to the Alpha and Beta variants of the virus as well as the original virus.

"The conclusion of this report is that when it comes to Delta and other variants, the Sinopharm vaccine induces similar levels of antibody responses as people who have naturally been infected, Which is very good," Prof. Malavige said.

"Between the age groups of 20 to 40, 98 per cent developed antibodies while in the age group of over 60, 93 per cent developed antibodies. This is not surprising as older people respond less to vaccines," the Professor added.

She said this data on the Sinopharm did not turn up to the world before, and such real-world data was important to build up vaccine confidence domestically and internationally.

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