Covaxin output cycle may hit Centre’s deadline Updated: Updated: Each batch takes 4 months, says Covaxin manufacturer Bharat Biotech. Share Article AAA A staff nurse displays vials COVAXIN at the vaccination centre in District Hospital King Koti, Hyderabad on May 28, 2021. | Photo Credit: NAGARA GOPAL Each batch takes 4 months, says Covaxin manufacturer Bharat Biotech. Amid claims by the Centre that “all Indians” would be vaccinated by the year end, Bharat Biotech, the manufacturer of Covaxin, has disclosed that it takes 120 days — or about four months — for a manufactured batch of vaccines to be released for supply. “Thus, production batches of Covaxin that were initiated during March this year will be ready for supply only during the month of June,” the company said in a statement on Friday.