Colorado tick fever(redirected from American mountain fever)
Also found in: Medical.
Colorado tick feveror
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 germ is harbored by wild rodents and other animals and is carried by infected ticks that attach themselves to humans.
..... Click the link for more information. 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.
..... Click the link for more information. . 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]
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.