Bharat Biotech\'s CMD Krishna Ella lashed out at the critics and AIIMS Director for calling COVAXIN a \'backup\'. He said that there is no back-up in the world. He added that COVAXIN was a vaccine and not a back-up. He also said that the vaccine should not be politicised

source https://news.abplive.com/videos/news/india-bharat-biotech-chief-lashes-out-at-aiims-director-says-covaxin-a-vaccine-not-backup-1429283