According to the World Health Organization, HIV is the number one killer of women age 15-49. Heart disease kills older women, especially in rich countries, but of the 30.8 million HIV-positive adults in 2007, 15.5 million were women.
A staggering 26.1 percent of the population in Swaziland are infected with HIV — and half of women age 25-29 there are HIV positive.
Women are especially vulnerable to HIV, WHO says, because of biology and gender inequality. WHO Director General Dr. Margaret Chan said, "It's time to pay girls and women back, to make sure that they get the care and support they need to enjoy a fundamental human right at every moment of their lives, that is their right to health."