Serum Institute CEO Adar Poonawalla was administered the first dose of the Covishield coronavirus vaccine on Saturday afternoon, hours after Prime Minister Narendra Modi launched India's nationwide vaccination drive. Mr Poonawalla, whose company is manufacturing the vaccine developed by AstraZeneca and Oxford University - posted a video on Twitter, in which he is sitting on a couch as a man wearing a face mask injects the drug into his arm. He said he was taking the vaccine - which is being reserved for frontline workers and healthcare staff at this stage - to "endorse its safety and efficacy".