Covid antibodies fall in four months after vaccination: study

a study made to 614 workers from Health completely vaccinated on India found one “significant” drop in their antibodies who fight the covid-19 within the four months after the first injection.

The findings could help the indian government to decide whether to provide booster dose as western countries have done.

The decrease in antibodies does not necessarily imply that immunized people lose their ability to fight the disease, since the body’s memory cells can continue to provide substantial protection, according to the director of a state institute that conducted the study.

After six months, we should be able to tell them more clearly if and when a booster would be needed, “Sanghamitra Pati of the Regional Center for Medical Research, based in the eastern city of Bhubaneswar, said Tuesday.

And we would urge similar studies in different areas to obtain data from all over India, “the official added.

British researchers stated last month that the protection offered by two doses of the Pfizer / BioNTech and AstraZeneca vaccines begins to wear off after six months.

The Indian study, published on the Research Square prepress platform but not yet peer-reviewed, is one of the first conducted in the country with its two main vaccines: Covishield, a licensed version of the AstraZeneca injection, and Covaxin for national development.

Health officials say that while they are studying the evolution of the science on booster doses, the priority is to fully immunize India’s 944 million adults.

More than 60% of them have received at least one dose and 19% already have the two required doses.

Covid-19 cases and deaths in India have dropped dramatically from a peak of more than 400,000 infections in early May.

India has reported 33.29 million cases in total and 443,213 deaths.

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