title: A new method of artificial production of immunity in mice by footpad injection of a crude larval extract of Trichinella spiralis.
mesh_terms: D000818:Animals; D000941:Antigens; D007110:Immunity, Active; D007114:Immunization; D008297:Male; D051379:Mice; D014234:Trichinella / Q000276:immunology*; D014235:Trichinellosis / Q000276:immunology*; D014612:Vaccines
chemical_list: D000941:Antigens; D014612:Vaccines