The findings of a study to find why some areas are reporting more COVID-19 cases than others has remained inconclusive, and now the BMC is dependent on the serosurvey to understand the situation and tackle further spread. Seroprevalence studies are conducted to get evidence of past exposure to the virus and to know the spread of the infection in the community.

On May 13, mid-day had published a report on the comparison between the first and the second waves in terms of cases and deaths. Also, some wards were found to have reported a high number of cases during both outbreaks despite having less population. Additional Municipal Commissioner Suresh Kakani had instructed to find the exact reason behind the difference in cases among all 24 wards.