Equine brucellosis in north-west England.
D000372:Agglutination Tests; D000818:Animals; D002006:Brucellosis / Q000453:epidemiology / Q000276:immunology / Q000662:veterinary*; D003168:Complement Fixation Tests; D004739:England; D005260:Female; D006734:Horse Diseases / Q000453:epidemiology* / Q000276:immunology; D006736:Horses; D008297:Male