Scientists at AIDS meeting urge HIV prevention for long-term couples in Africa - SAN FRANCISCO - HIV continues to spread among couples in long-term relationships in sub-Saharan Africa because health authorities focus instead on the risks posed by casual sexual encounters, especially in young people. As a result, few HIV-prevention strategies have been devised for this overlooked population. Those are among the conclusions reached by scientists presenting research at the 17t... [AIDSPORTAL.org]