title: Evidence supporting a physiological role for endogenous C-type virus in the immune system.
mesh_terms: D000818:Animals; D000914:Antibodies, Viral; D000917:Antibody Formation; D007165:Immunosuppression Therapy; D008211:Lymphocyte Cooperation; D008214:Lymphocytes / Q000276:immunology* / Q000382:microbiology; D051379:Mice; D008934:Mitogens / Q000494:pharmacology; D012190:Retroviridae / Q000276:immunology*; D014779:Virus Replication / Q000187:drug effects
chemical_list: D000914:Antibodies, Viral; D008934:Mitogens