Q fever--an enigma.
D000818:Animals; D000835:Animals, Wild; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology; D006041:Goats; D011200:Poultry; D011201:Poultry Diseases / Q000453:epidemiology; D011778:Q Fever / Q000175:diagnosis / Q000382:microbiology / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology; D006113:United Kingdom