title: Colorado tick fever in the Rocky Mountain states.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D003120:Colorado; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012373:Rocky Mountain Spotted Fever / Q000453:epidemiology; D013987:Ticks; D014481:United States; D014777:Virus Diseases / Q000453:epidemiology*