Epizootiology of enzootic leptospirosis in a cattle herd.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D006386:Hemagglutination Tests; D007087:Illinois; D066298:In Vitro Techniques; D007922:Leptospirosis / Q000662:veterinary*