India had estimated 6.4 million COVID-19 infections by early May: National serosurvey

The much-awaited findings of the first national serosurvey conducted by the ICMR, published in the Indian Journal of Medical Research, indicate that 0.73 per cent adults in India were exposed to SARS-CoV-2 amounting to a total of 6.4 million infections by early May. The survey was conducted from May 11 to June 4 and covered 28,000 individuals whose blood samples were tested for IgG antibodies using COVID Kavach ELISA kit. Also, seropositivity was the highest in the age group of 18-45 years (43.3 per cent), followed by those between 46-60 years (39.5 per cent) and it was the lowest among those aged above 60 (17.2 per cent).

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