If Covaxin fails to meet efficacy mark, Centre has no plan to re-vaccinate those who have taken it already
Experts have criticised the central government and the drug regulator for approving Bharat Biotech's Covaxin for emergency use in haste as the vaccine has not cleared Phase 3 trials yet and hasn't shown efficacy data. India has already begun using Covaxin to inoculate its health workers. However, the government has no backup plan in case the efficacy data, expected in the next month, is less than the 50% benchmark set by the World Health Organisation, according to a report in ThePrint.