Updated Jan 16, 2021 | 17:23 IST The Resident Doctors' Association (RDA) of the Ram Manohar Lohia Hospital rejected Covaxin and requested the medical superintendent to vaccinate them with Oxford COVID-19 vaccine Covishield. Oxford COVID-19 vaccine Covishield  Key Highlights 'Covaxin manufactured by Bharat Biotech is being preferred in our hospital over Covishield manufactured by Serum Institute' 'The residents are a bit apprehensive about the lack of complete trial in case of Covaxin' 'We request you to vaccinate us with Covishield which has completed all stages of trial before its roll-out' New Delhi: Rejecting Covaxin due to ‘lack of complete trial’, resident doctors of Ram Manohar Lohia Hospital requested the medical superintendent to vaccinate them with Oxford COVID-19 vaccine Covishield.