The result of the fourth Sero survey- conducted by the government - is out and roughly two-thirds of all Indians above six years of age, which means around 67.6 per cent of the population, have antibodies against the coronavirus. But 40 crores are still at risk of infection. The survey was conducted with 36,227 people across 70 districts in 21 states in June-July in population above the age of six. How should we look at this data?
