At least two-third of the population surveyed in 11 states were found to have developed coronavirus antibodies, according to the findings of a sero-survey by the Indian Council of Medical Research (ICMR) done between June 14 and July 6.

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Madhya Pradesh leads the chart with 79% sero-prevalence whileKeralais at the bottom with 44.4%. Sero-prevalence in Assam is 50.3% andMaharashtra58%.

The findings of the fourth round of the national sero-survey, conducted across 70 districts, were shared by the Union Health ministry.

Sero-prevalence the other states surveyed are:Rajasthan(76.2%),Bihar(75.9%), Gujarat (75.3%), Chhattisgarh (74.6%), Uttarakhand (73.1%), UP (71%), AP (70.2%),Karnataka(69.8%), TN (69.2%) andOdisha(68.1%).

The survey was designed to capture the extent of the spread ofCovidinfection at the national level. Therefore, the results do not reflect the heterogeneity of sero-prevalence between districts and even between states