Colorado Tick Fever Symptoms, Causes and Treatment Information

What is Colorado Tick Fever? (Definition)

(Symptoms, Causes & Treatment)

According to the Centers for Disease Control, Colorado tick fever (CTF) virus is spread to people through bites of infected ticks. People who live in or visit areas in the western United States or western Canada which are 4,000‒10,000 feet above sea level may be at risk of becoming infected. Most cases of CTF occur during spring and summer months when ticks are most active.

Common signs and symptoms of Colorado tick fever include fever, chills, headache, body aches, and feeling tired. There are no medications to treat or vaccines to prevent CTF.

The best way to prevent CTF is to reduce your risk of tick bites.

  • Use insect repellent
  • Wear long sleeves and pants
  • Avoid wooded and bushy areas with high grass
  • Perform thorough tick checks after spending time outdoors

See below for updated news and information regarding Colorado Tick Fever including new medical research, treatment options and advancements. 

Latest Colorado Tick Fever Research – Treatment News, Discoveries and Findings

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Clinical Trials – Investigational Therapies

For information on current clinical trials, visit This is a searchable registry and results database of federally and privately supported clinical trials taking place in the U.S and abroad. provides information about a trial’s purpose, who may participate, locations, and phone numbers. This information should be used in conjunction with advice from health care professionals.

For information about clinical trials being conducted at the National Institutes of Health (NIH) Clinical Center in Bethesda, MD, contact the NIH Patient Recruitment Office:

Toll Free: (800) 411-1222
TTY: (866) 411-1010

For information about clinical trials conducted in Europe, visit:

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