Perhaps anal-sex activity is just beginning to be
targeted?...

  http://www.coolnurse.com/anal_sex.htm

  "It's important to remember that HIV can be
  transmitted through anal sex, especially anal
  intercourse. In fact, the risk of HIV transmission
  is greater than it is in vaginal intercourse because
  the lining of the rectum tears more easily than the
  vagina. The resulting skin breaks and bleeding
  increase the possibility of the transmission of
  bodily fluids containing the virus that causes AIDS.
  For those who choose to engage in either vaginal
  or anal penetrative sexual acts, using latex
  condoms is the best way to reducing the likelihood
  of HIV transmission.

  "Condoms are excellent for preventing the
  transmission of sexually transmitted diseases,
  including HIV/AIDS. Condoms MUST be made of
  LATEX to prevent STDs! None of this lambskin stuff
  please!"

However, I did note the scarcity of statistics on this
page as compared with an article it links to titled
"HIV and Women"...

  http://www.coolnurse.com/hiv_women.htm

Martin, you might want to try this website for those
real long hyperlinks...

  http://tinyurl.com/ - quick, easy and free.