2 of 3 Indians have Covid-19 antibodies: ICMR serological survey findings explained Posted on Two-third of Indians above the age of 6 had SARS-CoV-2 antibodies, show findings of the fourth nationwide serological survey conducted by the Indian Council of Medical Research (ICMR) in June-July. The survey results also suggest that about 40 crore people or one-third of the country’s population is still vulnerable to the novel coronavirus. The survey was conducted across the country in June and July. Its findings are significant because this is for the first time children aged 6-17 years were included in the national serosurvey. The results of the survey were released by DG, ICMR, Dr Balram Bhargava.