As Israel's Delta variant wave spreads beyond middle class towns with very high vaccine coverage, the protective effect of the vaccine becomes more obvious in the data. Graph via @LittleMoiz 
At the start of the wave, Israel worried that the vaccine didn't seem to be protecting enough against Delta. Now it's apparent that this was just an artifact of the wave beginning in wealthier towns with disproportionately few unvaccinated adults.
This is a good thing for the world, but bad for Israel. It means that the Delta wave, bad as it seemed, was being HEAVILY mitigated by the vaccine. As it spreads to communities with lower vaccination, things are going to get worse.
OK, maybe not good for the world either because it means Delta's pretty bad news all round.
Israel started giving (3rd) vaccine booster doses last week, with 500k over-60s already vaxxed. I wouldn't expect to see any impact of these boosters for a few weeks, though, because we know they take time to induce a complete immune reaction.
Important clarification: this graph is cases per million in each group (vaxxed, unvaxxed), NOT absolute number of cases. At more than 90% of over 60s, the vaccinated is by far the bigger group.
https://twitter.com/ariehkovler/status/1424725296754855936?s=19
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