-The Hindu 40 crore people still vulnerable to infection; over 50% of children surveyed found to be seropositive While two-thirds of the general population had SARS-CoV-2 antibodies, a third does not have antibodies, making approximately 40 crore people still vulnerable to infections, Indian Council of Medical Research (ICMR) Director General Balram Bhargava said on Tuesday. Presenting the results of the fourth national COVID serosurvey, Dr. Bhargava said States, districts and areas without antibodies...

-The Hindu Antibody prevalence data derived from serosurveys must be interpreted with caution and correction factors The theory behind population-based serological surveys (seroprevalence surveys or serosurveys) to detect the prevalence of antibodies against  COVID-19 is robust. Their purpose is to measure the proportion of a population already infected, as evidenced by antibody positivity. When applied on a national scale, a random sample of the entire population is tested. Then, the data are...