As I mentioned in the post I deleted because it was gross, I was circumcised for medical reasons (not disease on infection, the foreskin was too tight or something). I actually went into surgery for it to be fixed...
So firstly, foreskins can be problematic and secondly, it isn't mutilation or torture to circumcise a newborn baby, they have just crawled out of a vagina and are probably too busy worrying about what happened to their umbilical cord to care very much about their bell ends condition.
Presuming that the results of a biological study hold no weight in the "developed world" because they took place in Africa is
a) really, really stupid
b) uncomfortably bordering on racism
if you live in a place where you can wash your dick every day with gallons of clean drinking water then any health benefits from having an exposed penis are literally bullshit
The spread of AIDS is generally considered to be relatively independent of these vague catch-alls of hygiene and "sexual health," and far more dependent upon the use or absence of protection, which is the widely considered the cause of the African HIV epidemic.