HIV rate falling?

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Research published in Science shows how there has been an almost 50 percent decline in HIV prevalence in some groups, which the researchers attribute to people delaying when they first have sex and having fewer casual partners.
They found HIV prevalence fell most steeply at young ages, with a drop in prevalence of 49 percent for women aged between 15 and 24, and a 23 percent drop in men aged 17 to 29.
In 2003 Zimbabwe was estimated to have 1.8 million people infected with HIV/AIDS out of a population of 12 million.
Dr Simon Gregson, from Imperial College London, who led the research, said: "Although we can't say for certain, fear of HIV and AIDS may have influenced this change in behaviour, with Zimbabwe's well educated population, good communications, and health service infrastructure, all combining to create this effect."