Covishield has been found more effective than Covaxin in producing antibodies against coronavirus in the body in a recent preliminary study conducted by coronavirus vaccine- induced antibody titre (COVAT). The research involved 552 health workers including 325 men and 227 women. Of these, 456 people had received Covishield and 96 had received the first dose of Covaxin. About 79% of these people were found to be sero-positive. The study showed that 86.8% antibodies were produced in those who got Covishield jab while 43.8% antibodies were produced in those who received Covaxin dose. According to the conclusion of this research, both the vaccines are working well against the virus.