Colorado Tick Fever (CTF)

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CTF is a rare viral disease spread by infected Rocky Mountain wood ticks in the western United States and western Canada.

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Frequently Asked Questions
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Prevention
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Symptoms & Treatment
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Transmission
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For Healthcare Providers
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Publications
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Transmission
Ticks infected by small rodents spread CTF…
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Tick Information
Learn about Rocky Mountain wood tick…
Approximate geographic distribution of Dermacentor andersoni ticks and counties of residence for laboratory-confirmed Colorado tick fever virus disease cases, United States, 2002–2012 - Cases are concentrated in the Western United States
Statistics & Maps
See where cases have occurred…
Page last reviewed: December 3, 2018
Content source: Centers for Disease Control and Prevention, National Center for Emerging and Zoonotic Infectious Diseases (NCEZID), Division of Vector-Borne Diseases (DVBD)