NEW DELHI, India (AFP) — Indian pharmaceutical firm Bharat Biotech said Wednesday its domestically developed vaccine, criticized for being rolled out before final trials, was found in interim late-stage data to have almost 81 percent efficacy in preventing Covid-19 infection. Questions had been raised by Indian medical experts about the effectiveness of Bharat Biotech’s “Covaxin” after officials authorized it for emergency use in January even though its Phase 3 trials — the last stage before […]