Colorado Tick Fever: Epidemiology

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The page below is a sample from the LabCE course Tickborne Diseases. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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Colorado Tick Fever: Epidemiology

The vector of Colorado tick fever is Dermacentor andersoni, the Rocky Mountain wood tick found in small mammals. The virus is an RNA virus of the genus Coltivirus. This intraerythrocytic arbovirus is located in the Western United States at altitudes of 4,000 to 10,500 feet. Fifty-nine cases were reported between 2010-2019, but only nine states require reporting. Reporting is voluntary in other states.
34. “CTF Statistics & Maps.” Centers for Disease Control and Prevention, 17 Mar. 2021, https://www.cdc.gov/coloradotickfever/statistics.html.
35. “CTF Transmission.” Centers for Disease Control and Prevention, 26 Feb. 2021, https://www.cdc.gov/coloradotickfever/transmission.html.

Colorado tick fever distribution and reported cases, 2010-2019 (34).
Ecology of Colorado Tick Fever virus (35).