title: Antigens of Rickettsia prowazeki. I. Activity in complement fixation and mouse protection tests.
mesh_terms: D000818:Animals; D000941:Antigens; D002473:Cell Wall / Q000276:immunology; D002498:Centrifugation; D003168:Complement Fixation Tests; D003593:Cytoplasm / Q000276:immunology; D006358:Hot Temperature; D051379:Mice; D012283:Rickettsia prowazekii / Q000276:immunology*; D014357:Trypsin
chemical_list: D000941:Antigens; D014357:Trypsin