What strikes me about the sex statistics you cite, Kate, is that they really upturn the stereotype that promiscuity is primarily responsible for the spread of HIV/AIDS in the developing world. Indeed, in Zimbabwe, for example, women's access to prenatal care is a stronger determinant of a population group's HIV infection rate than the prevalence of prostitution. Educating women and giving them comprehensive reproductive health care is one of the very best ways to fight AIDS. --Dana Goldstein