India has confirmed the first DNA vaccine against coronavirus
India's drug regulator has approved the world's first DNA vaccine against Covid-19 for emergency use.
The three-dose ZyCoV-D vaccine prevented symptomatic disease in 66% of those vaccinated, according to an interim study quoted by the vaccine maker Cadila Healthcare.
The firm plans to make up to 120 million doses of India's second home-grown vaccine every year.
Previous DNA vaccines have worked well in animals but not humans.
India has so far given more than 570 million doses of three previously approved vaccines - Covishield, Covaxin and Sputnik V.
About 13% of adults have been fully vaccinated and 47% have received at least one shot since the beginning of the drive in January.
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