“However, 77% of the population is still vulnerable, which is a significant proportion. Therefore, the containment measures need to continue with the same rigour.
The sero-surveillance was done in Delhi to estimate the prevalence of covid-19 infection among the general community of Delhi," said Singh.“Non-pharmacological interventions, such as physical distancing, use of face masks or cover, hand hygiene, cough etiquette, and avoidance of crowded places, must be followed strictly," Singh said.Survey teams were formed for all the 11 districts of Delhi for the study that was conducted between 27 June and 10 July.