Colorado Tick Fever is a viral illness transmitted by the bite of infected wood ticks, primarily the Dermacentor andersoni species. Symptoms typically include fever, headache, muscle aches, and fatigue, which can last for several days. Most people recover fully without complications. The disease is most common in the western United States, particularly in Colorado, during the spring and summer months when ticks are active. There is no specific treatment for Colorado Tick Fever, but supportive care, such as rest and hydration, can help alleviate symptoms. Preventive measures include using insect repellent and wearing protective clothing.