As ever, Israel is the canary down the coal-mine.

Waning immunity against infection seems pretty clear there: comparing cases rates between unvaxxed and fully-vaxxed in the spring was comparing night and day. Comparing them three months later was a different story... pic.twitter.com/yeSQMxiQIK

— John Burn-Murdoch (@jburnmurdoch) August 23, 2021