/jp/ - Otaku Culture

Condom culture haven't really penetrated into Asia yet, but after reading up on the subject out of curiosity it got me thinking. Why is AIDS prevalence in so low in Korea and Japan?
Condom use in both countries is very low and there is a multitude of examples of how the populace resist against it, like brothels and prostitutes with an enforced condom use struggling to find clients. Why isn't AIDS more widespread in Korea and Japan while the rest of Southeast Asia is festering in it? Can the statistics be skewed like we think they are in the case of rapes? The better quality of life definitely plays a factor, but I can't really see how it could be a deciding one.

Pic related, a japanese prostitute.