Sign of vaccine waning in new UK report among earliest vaccinees in ZOE COVID study of 1.2 million participants https://t.co/G5mWgp6Qud @bbchealth @timspector
Protection from infection:
Pfizer 88% -> 74% at 4 months
AZ 77% -> 67% at 3 months pic.twitter.com/B6RCPA4QT8

— Eric Topol (@EricTopol) August 25, 2021