Are minors in the 5-17 age group more vulnerable to COVID-19 than previously thought? That is what the second sero survey in Delhi which tested for antibodies in a sample size of 15,000 seems to have found. Not just that, it has found that senior citizens showed a lower infection rate than the minors. Equal percentages of samples were taken from the youngest and eldest lot for the survey. 25 percent samples were taken from 8-17 age group and 25 percent samples from the above 50 age group.