Covid antibodies drop drastically after 4 months of vaccination

Bhubaneswar – A study of fully vaccinated health workers in India found their antibodies to Covid-19 decreased “dramatically” four months after receiving their first dose.

The results will help the Government of India decide whether to provide a third vaccine when a number of Western countries have already done so.

The fading of the antibodies doesn’t mean people who have been vaccinated have lost their ability to fight disease because the body’s memory cells may still be working to provide significant protection, said the director of the state institute that conducted the study Has.

“After six months we will tell you more precisely if and when a third vaccine is needed,” the Sanghamitra Pati Regional Medical Research Center in Bhubaneswar City told Reuters on Tuesday.

“And we will be pushing for similar studies in different regions for data across India.”

British scientists announced last month that the protection obtained from two doses of the Pfizer / BioNTech and AstraZeneca vaccines wore off within six months.

The Indian study, published on Research Square preprint platform but not yet peer-reviewed, is the first in the country to include its two main vaccines – Covishield (a licensed version of AstraZeneca’s vaccine) and locally developed Covaxin.

Health officials say while examining the growing knowledge of booster doses, the priority is to fully vaccinate India’s 944 million adults.

More than 60 percent of the Indian population received the first dose and 19 percent received the second dose.

India’s Covid-19 cases and deaths have fallen sharply since they peaked at more than 400,000 cases in early May.

India reports a total of 33.29 million cases with 443,213 deaths from Covid-19.