[On the history of the discovery of the agent of  spotted fever].
D001938:Brazil; D005858:Germany; D049673:History, 20th Century; D007303:Insect Vectors; D008003:Phthiraptera; D014438:Typhus, Epidemic Louse-Borne / Q000266:history*
Zur Entdeckungsgeschichte des Fleckfiebererregers.