-The Hindu Vaccination drive likely to throw up erroneous inferences, experts The Indian Council of Medical Research (ICMR) is unlikely to immediately undertake a fourth national serology survey to estimate the extent of exposure to the coronavirus since January. Officials told The Hindu that though discussions were still on, undertaking such a study presented newer logistical challenges and the ongoing vaccination drive could read to erroneous inferences. The ICMR has conducted three national...

-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...