Oxford-AstraZeneca vaccine is cheaper than Pfizer's and Moderna's and doesn't require supercold temperature
2020 Nov 24
Now there is a third possible vaccine for fighting the COVID-19 pandemic. Jakub Porzycki/NurPhoto via Getty Images
There is now a third vaccine that prevents COVID-19 infections. It isn't quite as effective as the other two vaccines but it has advantages that may make it the frontrunner.