<span style="color: #222222;">As per the ICMR directives, the Mumbai civic body would soon be conducting a sero-survey in three wards of the metropolis to know the extent of the spread of coronavirus in Mumbai. The survey will be conducted in association with the NITI Aayog, Tata Institute of Fundamental Research (TIFR), and some other institutions.</span><br />'' <span style="color: #222222;"> </span><br />'' <span style="color: #222222;">During the survey 10,000 random blood samples will be tested. Mumbai civic body said that the study will provide information about exposure to infection and progression of the disease in the population, which will be critical to make informed public health policy decisions.</span><br />'' <span style="color: #222222;"> </span><br />'' <span style="color: #222222;">AIR correspondent reports that the new survey to be undertaken by the Mumbai civic body in the wake of rising number of coronavirus cases will be conducted in the age group above 12 years, and a total of 10,000 blood samples will be collected. These samples will be randomly collected from both slum and non-slum areas in M- West, F North and R North wards. The blood samples will be sent to Kasturba Molecular Diagnostics lab and Translational Health Science and Technology Institute, Faridabad for detecting Immunoglobulin G antibodies.</span><br />'' <span style="color: #222222;"> </span><br />'' <span style="color: #222222;">The detection of antibodies is considered as a sign of exposure to COVID-19 infection.</span><br />'' <span style="color: #222222;"> </span><br />'' <span style="color: #222222;">Meanwhile, the Mumbai police commissioner Param Bir Singh who visited suburbs in north Mumbai said that buildings in congested areas and slums in the region will be sealed considering the rise in COVID-19 cases in the last 15 days. He attributed the spread of coronavirus infection to the high population density in the area.</span><br />''