People need not take an antibody test after the vaccination since it is only one measure of immunity, V K Paul, member-health, Niti Aayog said. In the medium to long term, it is a “cell-mediated” immune response of the vaccine that is more critical and requires sophisticated systems of testing, he added.
Paul was responding to the concerns of people who have not shown antibody presence after taking two doses of the vaccine. He said trials were on to find whether a booster dose of Covaxin is needed after the first two doses. “As and when we find that a booster