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Covaxin shows 78% efficacy against Covid

We already reported that World Health Organisation (WHO) has approved Bharat Biotech’s Covaxin for emergency use. Now, one of the world’s top medical journals, Lancet has published that the made-in-India vaccine is 77.8 per cent effective against symptomatic Covid. The vaccine demonstrated these results in the phase 3 data.

The efficacy data showed 70.8 per cent protection against all variants of the SARS-CoV-2 virus. As per the phase 3 data, the homemade vaccine was found to be 65.2% effective against the Delta variant, 93.4% effective against severe symptomatic Coronavirus and 63.6% effective against asymptomatic Covid.

“We estimated vaccine efficacy of 77·8% against symptomatic Covid-19 disease and, importantly, based on the limited data available, a higher efficacy against severe Covid-19 of 93·4%,” the manufacturer of the vaccine reported.

The domestic vaccine’s phase 3 clinical trials were carried out in 25 hospitals between November 2020 and May 2021, involving 24,419 participants aged 18-97 years.

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