UK researchers say efficacy of Pfizer, AstraZeneca weakens in 90 days but both 'still doing really well' against strain.
from Al Jazeera – Breaking News, World News and Video from Al Jazeera https://ift.tt/3D2qI2E
Thursday, August 19, 2021
Home »
Aljazeera News
» COVID vaccine efficacy wanes, but jabs offer protection: Study
0 comments:
Post a Comment