The puzzling thing about the UK is their death counts wrt last winter are lower than the US. In terms of % thereof.
If I had to guess, I’d guess temperatures. US winters much colder. People forced inside to the furnace and contained virus.
US deaths far higher compared to last winter’s spike vs UK’s modest bump. Both countries should be seeing both vax and pre infection immunity dying about now. Astrazeneca had weaker numbers, but they are dying less.
Puzzling.
Maybe reporting criteria (what counts as a COVID death) might account for some of the reported differences between the USA and the UK.
It sure makes a whopping difference in China’s stats.
I would suspect that the populations are similar but perhaps in the U.S., we have more comorbidities.