From a government link to the particulars of Astra Zeneca:

1. NAME OF THE MEDICINAL PRODUCT COVID-19 Vaccine AstraZeneca, solution for injection in multidose container COVID-19 Vaccine (ChAdOx1-S [recombinant]) 2. QUALITATIVE AND QUANTITATIVE COMPOSITION One dose (0.5 ml) contains: COVID-19 Vaccine (ChAdOx1-S * recombinant) 5 . 1010 viral particles (vp) *Recombinant, replication-deficient chimpanzee adenovirus vector encoding the SARS-CoV-2 Spike (S) glycoprotein. *Produced in genetically modified human embryonic kidney (HEK) 293 cells. This product contains genetically modified organisms (GMOs).   *

This vaccine is used in UK,  and in India under the name Covishield. It should not be taken by Vaisnavas, vegetarians, Jains, or anti-abortionists, as it contains material taken from abortions.