NEW DELHI: Delhi’s sero-prevalence study has found that 23.48 per cent of the people have been affected by Covid-19 in the city, which has several pockets of dense population, the Union Health Ministry said on Tuesday.
The study, which was conducted from June 27 to July 10 by the National Center for Disease Control (NCDC) in collaboration with the Delhi government, also indicated that a large number of infected persons remain asymptomatic, it said.
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A sero-survey involves testing of blood serum of individuals to check for the prevalence of antibodies against an infection.
“The results of the sero-prevalence study show that on an average, across Delhi, the prevalence of IgG antibodies is 23.48 per cent. The stu