Colorado Tick Fever

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Colorado Tick Fever (CTF) is a rare viral disease spread by the bite of an infected Rocky Mountain wood tick found in the western United States and western Canada. There are no vaccines to prevent or medicines to treat CTF. You can reduce your risk of infection by avoiding ticks.

At-A-Glance
Prevention
Symptoms, Diagnosis, & Treatment
Transmission
Statistics & Maps
For Healthcare Providers
Links & References
Transmission electron microscopic (TEM) image of Colorado tick fever virus
Virus
Learn more about CTF virus.
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Prevention
Reduce your risk of getting sick.
Map of the United States
Statistics & Maps
See where cases have occurred.