Vaccine against COVID-19 only helps prevent severe illness: AIIMS Director Dr Randeep Guleria Dr Guleria said that anti-bodies which are produced because of the vaccine will not allow the virus to further replicate. Share Via Email | A+A A- By ANI NEW DELHI: AIIMS Delhi Director Dr Randeep Guleria on Wednesday said that COVID-19 vaccine prevents people from getting severe illness though it may not prevent their getting infection. Addressing issues related to COVID-19 along with Dr Devi Shetty, Chairman, Narayana Health and Dr Naresh Trehan, Chairman, Medanta through video conferencing, Dr Guleria said that anti-bodies which are produced because of the vaccine will not allow the virus to further replicate and it will not allow the disease to become more severe and therefore lives will be saved.