Bharat Biotech has signed an agreement with Brazil for supply of 20 million doses of Covaxin. Hyderabad: Bharat Biotech which faced a red flag from Brazil's health regulator for supply of COVID-19 vaccine Covaxin to that country over the issues of Good Manufacturing Practices in its plant, has filed a new request to the Brazilian authorities for certification. According to the National Health Surveillance Agency of Brazil Anvisa, Bharat Biotech made the request on May 25 and a day before the Ministry of Health of the South American country filed a new application for authorisation to import 20 million doses of the Covaxin.