Here a link to CDC data:
http://www.cdc.gov/hiv/topics/survei...ivaidsexposure
In men:
Looks like in 2008, the heterosexual vs homosexual split was 20% vs 80%
and the accumulated cases up to 2008 had a split of 12% vs 88%
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In men and women:
Looks like 39% vs 61% in 2008 and 27% vs 73% in accumulated cases up to 2008.
The 50/50 split most people talk about is a worldwide number. The US is trending that way, but isn't there yet.
So JG is not completely illogical. Also, as mentioned above, the late 80's and early 90's were a time of absolute AIDS hysteria.
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I the Army, we did train in sticking each other with needles during combat lifesaver training. And, since everybody has their blood type on their dog tags, we did train for the possibility of doing a battlefield blood transfusion...warm body to warm body. So, HIV is a concern. I only remember getting tested once (and then we were often encouraged to donate during civilian blood drives, and I think they tested that too). When a soldier deploys to a combat zone, he or she would be tested...so the likelyhood of getting HIV is low Now...but when we were first discovering HIV in the 80's, there wasn't testing, and alot of people did get HIV from transfusions.
I anticipate that the report, due to come out at the end of this year, will say get rid of DADT...but it will recommend that the military do more frequent HIV testing, since they do have their own mini blood supply....and statistically it would be more at risk.