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Huge drop in COVID antibodies inside 4 months of vaccination, examine finds – ET HealthWorld

A examine of 614 totally vaccinated well being employees in India discovered a “significant” drop of their COVID-fighting antibodies inside 4 months of the primary shot.

The findings may assist the Indian authorities determine whether or not to supply booster doses as some Western international locations have achieved.

Waning antibodies don’t essentially imply that immunised folks lose their means to counter the illness, because the physique’s reminiscence cells should still kick in to supply substantial safety, stated the director of a state-run institute that did the examine.

“After six months, we should be able to tell you more clearly whether and when a booster would be needed,” Sanghamitra Pati of the Regional Medical Analysis Centre, primarily based within the jap metropolis of Bhubaneswar, informed Reuters on Tuesday.

“And we would urge similar studies in different areas for pan-India data.”

British researchers stated final month that safety provided by two doses of the Pfizer/BioNTech and the AstraZeneca vaccines begins to fade inside six months.

The Indian examine, printed within the Analysis Sq. pre-print platform however but to be peer reviewed, is among the first such achieved within the nation involving its primary two vaccines – Covishield, a licensed model of the AstraZeneca shot, and domestically developed Covaxin.

Well being officers say although they’re finding out the evolving science on booster doses, the precedence is to totally immunise India’s 944 million adults. Greater than 60% of them have acquired no less than one dose and 19% the required two doses.

COVID circumstances and deaths in India have come down sharply since a peak of greater than 400,000 infections in early Could. India has reported 33.29 million circumstances in whole and 443,213 deaths.

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