Oxford AstraZeneca

Oxford-AstraZeneca is a COVID-19 vaccine developed through a collaboration between the University of Oxford and pharmaceutical company AstraZeneca. It uses a virus from chimpanzees called a vector, modified to carry genetic instructions for the coronavirus’s spike protein. When injected, it prompts the immune system to recognize and respond to the virus, building protection without causing illness. It’s stored at refrigerator temperatures and is used globally as part of vaccination efforts to reduce COVID-19 infections and severity. The vaccine’s effectiveness varies but has been a key tool in controlling the pandemic.