This document discusses the role of behavior change communication (BCC), now called strategic behavioral communication (SBC), in the context of comprehensive HIV/AIDS care. It outlines how SBC can support various elements of care including prevention, counseling and testing, prevention of mother-to-child transmission, antiretroviral therapy, tuberculosis and other opportunistic infection treatment, home-based care, and support for orphans and vulnerable children. The objectives of SBC are to provide information to stimulate behavior change, increase access to services, promote adherence, and reduce stigma across the continuum of HIV prevention, care, and treatment.