Rubraquercus(OCGN)-I looked into it, was surprised
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COVAXIN is " an “inactivated” vaccine — a vaccine that uses the dead virus — at its high-containment facility in Hyderabad."
Covaxin phase-3 trials to end today(Feb.5), average efficacy 60-70%
"The phase-3 trials showed that the vaccine has an average efficacy of 60% to 70%. In a few subjects, the efficacy is as high as 85 to 90%. No side-effects were seen,” Dr Naidu said.
https://www.deccanherald.com/national/covaxin...35362.html