Abstract:
The vast majority of HIV cases occur in sub-Saharan Africa, where nearly 2 million people become infected with HIV/AIDS every year. One quarter of these new HIV infections are among people under 25, and almost all are due to unprotected sex. AIDS is incurable and no successful AIDS vaccine has been developed. Ensuring the adoption of safer sexual behavior among youth is critical to preventing the transmission of this disease. However, there is surprisingly little evidence concerning the relative effectiveness of different programs to reduce risky sexual behavior.
