title: Memory T-cell subsets in parasitic infections.
abstract: Parasitic infections remain a major health problem throughout the world and unlike many viral or bacterial diseases, there are no vaccines to help control parasitic diseases. While several important advances have been made that will contribute to the development of parasite vaccines, such as cloning of dominant parasite antigens and a better understanding of the effector T-cell subsets needed for immunity, fundamental questions remain about how to induce long-term immunologic memory in vaccines. Here we examine a few of the experimental models that have been used to elucidate the nature of the memory T cells that are generated during parasitic infections. Although significant hurdles remain in the development of parasite vaccines, studies with both protozoa and gastrointestinal nematodes suggest that long-term immunity induced by vaccination is a realistic goal for control of parasitic infections.
authors.affiliation: Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Room 310 Hill Pavilion, 380 South University Avenue, Philadelphia, Pennslyvania 19104-4539, USA.
authors.forename: Sara
authors.initials: S
authors.lastname: Colpitts
authors.forename: Phillip
authors.initials: P
authors.lastname: Scott
mesh_terms: D000818:Animals; D006801:Humans; D007156:Immunologic Memory / Q000276:immunology*; D010272:Parasitic Diseases / Q000276:immunology* / Q000517:prevention & control; D016176:T-Lymphocyte Subsets / Q000276:immunology*; D014612:Vaccines / Q000276:immunology
chemical_list: D014612:Vaccines