Covaxin Phase 3 Data Shows 77.8% Efficacy, Says Lancet

Covaxin, the coronavirus vaccine developed by the government's medical research agency and Bharat Biotech, was found to have a 77.8 per cent efficacy rate against symptomatic COVID-19 in a long-awaited analysis published in The Lancet. The study also found it to be 65.2 per cent effective against the more dangerous Delta variant of the coronavirus in its preliminary analysis but said further investigations are necessary to confirm it.