Book excerpt: In Immunotherapy for Infectious Disease, Jeffrey M. Jacobson, MD, and a panel of leading researchers review the state-of-the-art for treating various infections-particularly HIV-by manipulating the immune system's response rather than by chemical drugs. The contributors synthesize the principles of immune defense on the molecular level (monoclonal antibodies, vaccines, methods of antigen presentation, and cytokines and cytokine antagonists), as well as on the cellular and clinical levels levels as a protection against infection. The review of the current state of anti-HIV immunotherapy covers HIV-specific passive and active immunization strategies, gene therapy, and host cell-targeted approaches for treating HIV infection and restoring immune function.