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The unique biphasic fever of colorado tick fever explained

Hiking in the mountains is a classic adventure, but it carries hidden risks like Colorado Tick Fever. Don't let a tiny tick bite lead to a serious illness. Understanding this disease is the first step toward safe outdoor exploration and prevention.

What are the main causes of Colorado Tick Fever?

  • This disease is caused by the Colorado tick fever virus (CTFV), which is transmitted to humans through the bite of an infected tick.
  • The primary carrier is the Rocky Mountain wood tick (Dermacentor andersoni), found at high altitudes in the western United States and Canada.
  • While human-to-human transmission is not possible through casual contact, the virus can be spread through blood transfusions, though this is extremely rare.
A person showing signs of Colorado tick fever symptoms
A person showing signs of Colorado tick fever symptoms

Key symptoms of Colorado Tick Fever to watch for

  • Initial Colorado Tick Fever symptoms include a sudden onset of fever, chills, severe headache, body aches, and significant fatigue.
  • A classic sign is a biphasic fever, where the fever lasts for a few days, subsides, and then returns for a second period.
  • A faint Colorado Tick Fever rash may appear in some cases, but it is less common than in other tick-borne illnesses like Rocky Mountain spotted fever.

How can you prevent Colorado Tick Fever effectively?

  • The best prevention of Colorado Tick Fever involves avoiding tick-infested areas like tall grass and wooded regions, especially from spring to fall.
  • Use an EPA-registered insect repellent containing DEET and treat your clothing and outdoor gear with products containing 0.5% permethrin.
  • After outdoor activities, conduct thorough body checks for ticks on yourself, your children, and pets, and remove any ticks promptly and carefully.

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Microscopic images of Colorado Tick Fever

A clear image of a Rocky Mountain wood tick bite
A clear image of a Rocky Mountain wood tick bite
An overview of treatment for Colorado tick fever
An overview of treatment for Colorado tick fever
A close-up of a Colorado tick fever rash on skin
A close-up of a Colorado tick fever rash on skin
A doctor performing a Colorado tick fever diagnosis
A doctor performing a Colorado tick fever diagnosis
Information on is Colorado tick fever contagious
Information on is Colorado tick fever contagious
Chart showing how long Colorado tick fever lasts
Chart showing how long Colorado tick fever lasts
A hiker takes steps for prevention of Colorado tick fever
A hiker takes steps for prevention of Colorado tick fever

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While there is no specific antiviral treatment for Colorado Tick Fever, most individuals recover with supportive care like rest and fluids. If you suspect a tick bite and develop symptoms, seek a medical diagnosis to ensure proper management.

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