Q fever in the United States; epidemiologic studies of an outbreak among stock handlers and slaughterhouse workers.
D000003:Abattoirs; D001699:Biometry; D004196:Disease Outbreaks; D016021:Epidemiologic Studies; D011778:Q Fever; D012282:Rickettsia Infections / Q000453:epidemiology* / Q000706:statistics & numerical data*; D014481:United States
RICKETTSIAL DISEASES/epidemiology and statistics