AstraZeneca/Oxford, once a frontrunner in COVID-19 vaccine race, has work to do to catch up

New peer-reviewed data on a possible COVID-19 vaccine from AstraZeneca and Oxford University suggest it is safe, but questions remain about whether their vaccine can be 90% effective and how well it may help protect those over 55.

from CBC | Health News https://ift.tt/39Ub0uA