Colorado tick fever


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Colorado tick fever

or

mountain tick fever,

acute disease caused by infection with a double-stranded RNA virus (a Coltvirus) that is transmitted to humans by Rocky Mountain wood ticks (Dermacentor andersoni), which can also transmit Rocky Mountain spotted feverRocky Mountain spotted fever,
infectious disease caused by a rickettsia. The bacterium is harbored by wild rodents and other animals and is carried by infected ticks of several species that attach themselves to humans.
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 and tularemiatularemia
or rabbit fever,
acute, infectious disease caused by Francisella tularensis (Pasteurella tularensis). The greatest incidence is among people who handle infected wild rabbits.
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. The disease, which may be mistaken for a generic viral infection, is endemic to parts of the W United States and Canada, especially mountainous regions. Symptoms include fever accompanied by headache and muscle ache, chills, nausea and vomiting, and a sensitivity to light. Symptoms typically begin three to six days after being bitten by an infected tick, last for about three days and subside, then return in many cases for a few more days. Complications, such as meningitis and encephalitis, are rare and occur mainly in children, but older adults often experience lingering fatigue and malaise for weeks or months. Nonaspirin analgesics and other treatments may be given for the symptoms; there is no vaccine.

Colorado tick fever

[‚kal·ə′rad·ō ′tik ‚fē·vər]
(medicine)
A nonexanthematous acute viral disease of humans occurring in the western United States and transmitted by a bite of the tick Dermacentor andersoni ; characterized by a short course, intermittent fever, leukopenia, and occasionally meningoencephalitis. Also known as mountain tick fever.
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References in periodicals archive ?
Colorado tick fever is caused by a virus in the family Reovirdiae in the genus Coltivirus.
Colorado tick fever (CTF) is a nonfatal, tick-borne viral infection seen in the Rocky Mountains.
Survey for evidence of Colorado tick fever virus outside of the known endemic area in California.
Isolation of Eyach virus (Reoviridae, Colorado tick fever group) from Ixodes ricinus and I.
Eyach virus: relative of the Colorado tick fever virus rediscovered in Baden-Wurttemberg.
The potential for transmission of arboviruses by blood transfusion with particular reference to Colorado tick fever.
Intra-erythrocytic location of Colorado tick fever virus.
The development of Colorado tick fever virus within cells of the haemopoietic system.

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