Two-third of Indians above the age of 6 had SARS-C0V-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. ICMR has conducted the fourth round of national blood serum survey which tests for antibodies, known as a serosurvey, for Covid-19. The aim of the survey was to estimate the sero-prevalence of SARS-C0V-2 antibodies. The survey was conducted in June and July, 2021 across 70 districts of 21 states. These are the same districts where three earlier rounds have been conducted during May-June (2020); August-September (2020); and December-January (2020-2021). Watch the video to know more.