Community Mobilization and HIV/AIDS Prevention among Youth in West Africa: The Guinea Case Study • Fannie Fonseca-Becker, Johns Hopkins University ; Winifride Mwebesa, Johns Hopkins University

Does Knowledge of Risk of Contracting AIDS Change Sexual Behavior? The Case of Mozambican Youth • Ndola Prata, University of California, Berkeley ; Mark Stehr, Drexel University ; Leo Morris, U.S. Centers for Disease Control and Prevention (CDC) ; Elizio Mazive, National Institute of Statistics, Mozambique

Changing Perceptions of Risk of Infection with HIV/AIDS in Rural Malawi • Kirsten Smith, University of Pennsylvania

Perceived Social Support and Condom Use in Urban Cameroon • Basile O. Tambashe, Tulane University ; Gervais Beninguisse, Institut De Formation Et De Recherche Demographiques (IFORD)