Astra Zeneca vaccine effectiveness gets a new boost from the late stage trial results for US, Chile and Peru that has 32,000 volunteers. The study shows Astra Zeneca vaccine 100% effective to prevent hospitalization and deaths, and 79% effective to prevent symptomatic illness. The vaccine is also known as the Oxford vaccine because it was developed at labs in Oxford University, England.
The vaccine is now preparing for US FDA regulatory approval. Its worldwide use will give new hope to the world's population because it is being given at cost and can be stored in ordinary refrigerators for long periods. Conditions that give it wide access in poor countries. It is also manufactured in India by The Serum Institute, one of the largest vaccine manufacturing labs in the world, which would make it possible to make the billions of doses needed.