Innate Defense Mechanisms: Development of Self-Recognition Systems in Natural Killer Cells; P.V. Sivakumar, et al. Activating and Inhibitory NK Cell Receptors; L.L. Lanier. Regulation of Immune Responses by Inhibitory Receptors; E.O. Long. Effector Choice: Interleukin-4 Receptor Signaling Mechanisms and Their Biological Significance; K. Nelms, et al. Development of CD4 + Effector T Cells and Susceptibility to Infectious Diseases; R.M. Locksley, et al. Regulation of Host Resistance to Intracellular Pathogens: Interleukin-4 Production in Response to Infection with Intracellular Bacteria; H. Collins, et al. Cytotoxic T Lymphocytes in Resistance to Tuberculosis; R.J. Mazzaccaro, et al. Immunopathogenesis of HIV-1 Infection: HIV Entry and Tropism: When One Receptor is Not Enough; E.A. Berger. Immune Control of HIV-1 Replication; B.D. Walker, et al. New Approaches to Vaccine Development: Non-Structural Determinants of Immunogenecity and the B Cell Co-Receptors, CD19, CD21, and CD22; D.T. Fearon. DNA Vaccines: Mechanisms for Generation of Immune Responses; M.A. Liu, et al. 12 Additional Chapters. Index.