How to improve footfalls in vaccine drive Bharat Biotech, the manufacturer of Covaxin, has, on its part, been getting people to sign on a consent form in which it has promised compensation in case of serious side effects. Share Via Email | A+A A- Staff nurses queuing up to receive the vaccine shot at Capital Hospital. (Photo | EPS) The race for a Covid vaccine may have ended, but the finishing line is still a blur due to the new confusion over vial preference. A day before the state kicked off the vaccination drive, inoculating 2,684 healthcare workers on the inaugural day, the Tamil Nadu Government Doctors’ Association (TNGDA), comprising 20,000 healthcare professionals, had nudged doctors to opt for the Covishield jab, saying Covaxin is still awaiting results of its Phase 3 trials.