Bharat Biotech Bharat Biotech has said that the efficacy of its Covid-19 vaccine – Covaxin -  could be determined only fourteen days after a second dose. "Covaxin has been designed to be efficacious. Covaxin clinical trials are based on a two-dose schedule, given 28 days apart. The vaccine efficacy will be determined 14 days post the second dose," said the company in a statement. "Covaxin is a fully indigenously developed Covid vaccine, with the largest phase three clinical trial conducted in India in 26,000 subjects across 25 sites.

The above clarification from the company came hours after Haryana HM Anil Vij, who had been administered one shot of Covaxin about a fortnight ago as part of its clinical trials, said he tested positive for Covid-19.

Covaxin is a two-dose anti-coronavirus vaccine and Haryana Health Minister Anil Vij was given only the first dose, Union Health Ministry clarified on Saturday. The union health ministry said, "The antibodies against the infection build up in a human being only after a specific number of days pass after the second dose of the vaccine is taken. This is a two-dose vaccine. The minister in question has taken only one dose of the vaccine."

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