Covid-19 vaccine: Covaxin trail to enrol 2000 volunteers each in metros, Pfizer seeks emergency use of vaccine
Hyderabad-based Bharat Biotech International has reportedly said it is planning to enrol about 2,000 participants each in metros for phase-3 trials of its Covid-19 vaccine Covaxin. The trial began earlier this week.
Pfizer has said it is asking US regulators to allow emergency use of its Covid-19 vaccine. The action comes days after Pfizer Inc and its German partner BioNTech announced that its vaccine appears 95 per cent effective at preventing mild to severe Covid-19 disease.