Brucellosis: epidemiology and practical problems of control in Nigeria.
D000818:Animals; D002006:Brucellosis / Q000453:epidemiology* / Q000276:immunology / Q000517:prevention & control; D002007:Brucellosis, Bovine / Q000453:epidemiology; D002417:Cattle; D003140:Communicable Disease Control; D006801:Humans; D009549:Nigeria