title: Immune responsiveness of the bovine host to repeated low-level infestations with Dermacentor andersoni.
mesh_terms: D000818:Animals; D000917:Antibody Formation; D000941:Antigens / Q000276:immunology; D002417:Cattle; D003870:Dermacentor / Q000276:immunology; D005260:Female; D007108:Immune Tolerance; D008213:Lymphocyte Activation; D012008:Recurrence; D012469:Salivary Glands / Q000276:immunology; D012867:Skin / Q000276:immunology; D012882:Skin Tests; D013984:Tick Infestations / Q000276:immunology*
chemical_list: D000941:Antigens