"IQ" = ??
There's a ton of time lags that complicate this. Infection rates now reflect vaccination rate a couple of weeks ago because of the time that it takes for the vaccine to kick in. Tested-positive rates now reflect infection a week or two ago because of the time for incubation period, symptoms to show up, the person to get tested, and the test results to be reported.
The B.1.617.2 variant is another variable - 50% - 60% more infectious that B.1.1.7. The third wave that we had, was mostly B.1.1.7 (same one that hit the UK hard a few months ago). B.1.617.2 is the one that hit India hard. Apparently (680 News) B.1.617.2 now is around a quarter of new infections, and it's expected to be the dominant one in another month, and the effectiveness of one vaccine dose (most people's situation) is lower for that one. (Still high with two doses.)
It means there is a battle right now between the more-infectious B.1.617.2 increasing as it takes over, and vaccination rates for both first and second doses, and we need both. Having one vaccine dose is still important, but having two is more important than ever.
The UK is concerned about B.1.617.2, even though their vaccination situation is pretty good.
It is very conceivable, that B.1.617.2, or perhaps whatever the next mutation is, is the one that sweeps through and clears out a bunch of the deniers and vaccine-resisters.
Get vaccinated. If you have a second-dose appointment (as I do - August) and the opportunity comes to move it ahead, do that.