RE: Study - sorry - that was the sibling message that mentioned a recent study.
Ignorance was also not directed at you specifically - but rather the general objecting populace at large - sorry man.
Of course, if HIV is primarily an STD and you're riding cycles with seatage of modern design, I suspect you get safer and safer every mile. (Honest I'm not getting back on one of those things until they bring back the banana seat).