[henearkr]

I hate too the testing policy in Japan.

But this policy alone cannot explain a supposed anomaly in the count of "requiring hospitalization" covid patients. That's because I assume that the persons with covid with a health state that requires hospitalization will always be tested.

What do you think would be a plausible bias? Maybe less aggravating factors among infected Japanese people?

[bamboozled]

I do think it's likely that mostly younger people make up the majority of new cases, that's probably a large part of it.

Then many young people seem to wear masks in public (at work etc) so they just don't easily spread it to elderly? Who knows...