Israel also started early with broad vaccinations. Now compare latest waves in USA/GB/Israel:

https://ourworldindata.org/explorers/coronavirus-data-explor...

For fun, add India, which has comparatively low vaccinations, where Delta began:

https://ourworldindata.org/explorers/coronavirus-data-explor...

Do you know about the quality of the data? I would suspect they match the big picture by now.

But while I was looking into that, last at the beginning of the year - the quality was horrible. Even here in developed germany, it was hard to get meaningful numbers from different districts. I mean, there were lots and lots of data flying around, but most of it not solid or directly comparable in my understanding.

And here india looks interesting, if true. That would speak for a sort of herd immunity?

I really don't know what to think about India. I add it only because its so weird how quickly Delta seemed to fizzle out there, and then everyone stopped talking about it. Lots of very strange cases like that in the data.

I think most data is not really comparable across countries, only across time (and even then: discard data early on), because of different levels of data collection. So best only to compare the same country vs its own prev spikes. But this is esp true with India vs smaller countries, you may be able to compare Euro nations to each other more accurately, but would caution against interpreting small differences as meaningful.

The size of the peak cases in countries that have high vaccination rate, vs previous peaks before vaccination.

UK for instance: https://coronavirus.data.gov.uk/details/cases

You are comparing different variants as if they are equal. That makes no sense. If you look at the data so far available it does seem to reduce incidence of infection.

we know the new variants are more contagious than what we had last year, if the vaccines didn't limit growth we should see a steeper curve, I believe.

How do you account for prior immunity as well as the "pool" of people that would show up as a case going down as well?

Both those factors would result in a softer curve without any vaccination.

Has the UK peaked?

> As far as I know, it indeed supresses the virus from circulating, it just doesn't stop it completely.

Nope, it does not. Check your facts again with the Delta variant.