In a serological survey of roughly 7,000 people in Mumbai, researchers in their first round of surveys found COVID-19 antibodies present in 57 percent of participants from slums, and 16 percent of participants from non-slum areas. The survey is joint effort by NITI-Aayog, the Municipal Corporation of Greater Mumbai (MCGM) and the Tata Institute of Fundamental Research (TIFR), Mumbai. In the first round of antibody surveys, 6,936 volunteers were chosen from slums and non-slum areas, and their blood tested for the presence of SARS-CoV-2 antibodies. Researchers intend for the study to be representative of the larger population in the city, and reflect how common antibodies against the SARS-CoV-2 virus are in the general population. The survey used a random sampling method to pick out volunteers from three municipal wards in Mumbai: R-North (Dahisar), M-West (GM Link Road to Suman Nagar Junction;...