title: Low dosages of Trichinella spiralis antigen in delayed hypersensitivity.
mesh_terms: D000818:Animals; D000941:Antigens / Q000008:administration & dosage*; D005260:Female; D006168:Guinea Pigs; D006968:Hypersensitivity, Delayed / Q000276:immunology*; D007116:Immunization, Passive; D008198:Lymph Nodes / Q000276:immunology; D008297:Male; D012867:Skin / Q000276:immunology; D012882:Skin Tests; D014234:Trichinella / Q000276:immunology*
chemical_list: D000941:Antigens