Actually it has a bit to do with anal. The action tends to cause micro tears which causes minor amounts of bleeding. This almost guarantees an environment where AIDS can transfer.
Same things happens with all other forms of sex though, just not as often.
The community certainly helped it spread and get a foothold though. Sort of a perfect storm. I imagine that it would have had similar results if it had gotten a foothold in swinger society first.
Edit: Plus there obviously wasn't much protection (of any form) being used. No real reason for it until AIDS was already a firestorm.
Same things happens with all other forms of sex though, just not as often.
The community certainly helped it spread and get a foothold though. Sort of a perfect storm. I imagine that it would have had similar results if it had gotten a foothold in swinger society first.
Edit: Plus there obviously wasn't much protection (of any form) being used. No real reason for it until AIDS was already a firestorm.
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