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Mountain tick fever; Mountain fever; American mountain fever
Colorado tick fever is an acute viral infection spread by the bite of the Dermacentor andersoni wood tick.
This disease is usually seen between March and September. Most cases occur in April, May, and June.
Risk factors are recent outdoor activity and recent tick bite.
Colorado tick fever is seen most often in Colorado. Up to 15% of campers have been exposed to the virus that causes the disease. The disease is much less common in the rest of the United States.
Naides SJ. Arthropod-borne viruses causing fever and rash syndromes. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007: chap 405.
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