Taiwan also very tight monitoring, etc., plus very high mitigation by populace.* Possible genetic predisposition and far fewer co-morbidities.
*Effectiveness of mitigation may be breaking down somewhat with Omicron, as in other Asian countries. Too soon to tell on fatalities, but, lower viral exposure levels in general may help a lot (infected, but less infected = less chance of serious case.)
Egypt hot and dry, young.
Israeli populace mitigates much better than we do. Plus is highly vaccinated, which still helps some, and helped a LOT during Delta.
Aussies much more locked down and compliant.
I do not rule out benefits of early / preventive treatments.
Etc.
Superficial similarities in policy may in fact not reflect at all the actual situation on the ground and behavior / characteristics of the population. Even at it’s height, mitigation by people in stores, etc., in the US, was iffy. Hideous, incompetent educational effort by CDC, most media, etc.
I grabbed only a handful of countries that suggested to me they should be much more vulnerable than they have proven to be. I could keep grabbing.
But overall it’s too obvious a question. CDC has to have staff obsessing over the question. And NHS in England.
I dismiss mitigation on Taiwan. Population density would overwhelm nearly anything that might be done.
Asia has overall been very lightly touched by the virus from day 1. Japan deaths/million are tiny. That’s another density issue. I don’t care if everyone is in a mask, when you have police pushing people to pack them into trains, you are going to get infections . . . but it just hasn’t happened.