Researchers found the presence of Covid antibodies among 35 % people in three upzilas of Jashore district, suggesting that these people either contracted the virus or came in close contact with infected patients. The Genome Centre of Jashore University of Science and Technology (JUST) revealed the study findings on Saturday, after examining the samples of 400 people from six areas in Jhikorgachcha, Chougachcha and Sadar upazilas. Read: Covid vaccination reduces chances of hospitalization, mortality: IEDCR study The study was conducted through rapid antibody tests after collecting blood samples of the people. According to the research, natural antibodies were found among 38% members of those families where there were Covid-19 patients, and they were found tested positive through RT PCR. Besides, antibodies were detected among 24% people who lived near the houses of Covid positive patients. The people who have got vaccinated were not included in the research. According to the research report, it has been proved that the number of asymptomatic Covid carriers is higher and they are roaming around freely. Read: CVASU study confirms Delta has taken over as dominant strain