Vaxzevria Vaccine is used to prevent coronavirus disease 2019 (COVID-19) in people from 18 years of age. It has been designed to prepare the immune system to identify and combat the coronavirus SARS-CoV-2 causing COVID-19.

The vaccine is made up of a chimpanzee adenovirus (ChAdOx1 - Chimpanzee Adenovirus Oxford 1) that is unable to replicate and that has been modified to contain the genetic information for producing the SARS-CoV-2 spike protein.

The viral vector technology used for this vaccine has already been successfully tested and has been employed in the prevention of other diseases.