title: Rickettsial vaccines with emphasis on epidemic typhus. Initial report of an old vaccine trial.
mesh_terms: D000328:Adult; D000818:Animals; D000907:Antibodies, Bacterial / Q000032:analysis; D049673:History, 20th Century; D006801:Humans; D051379:Mice; D051381:Rats; D012283:Rickettsia prowazekii / Q000276:immunology*; D012290:Rickettsial Vaccines / Q000266:history / Q000276:immunology; D014437:Typhus, Endemic Flea-Borne / Q000517:prevention & control; D014438:Typhus, Epidemic Louse-Borne / Q000517:prevention & control*; D014612:Vaccines / Q000266:history / Q000276:immunology; D014613:Vaccines, Attenuated
chemical_list: D000907:Antibodies, Bacterial; D012290:Rickettsial Vaccines; D014612:Vaccines; D014613:Vaccines, Attenuated