I think what's causing the heaviness in sexual transmission is that the hands simply are a much easier spot to detect sores etc. The carrier will know they have

I think what's causing the heaviness in sexual transmission is that the hands simply are a much easier spot to detect sores etc. The carrier will know they have them and people they meet will see them before shaking hands. And the nether skin folds also tend to have more skin conditions due to the lack of natural ventilation. And sex is often practiced in poorly lit environments at moments when people are not super observant..