Calf serum in Covaxin?Patra lashes out at Congress

Does Covaxin, developed by Bharat Biotech in collaboration with the Indian Council of Medical Research, contain serum of the newborn calf? As an RTI document shared by Congress leader has gone viral, BJP spokesperson, Sambit Patra dismissed such facts. While addressing a press conference, Sambit Patra launched a scathing attack on Congress. Watch the video.