Colorado tick fever: Difference between revisions
No edit summary |
No edit summary |
||
| Line 15: | Line 15: | ||
==Differential diagnosis== | ==Differential diagnosis== | ||
{{Tick borne illnesses DDX}} | |||
==Evaluation== | |||
*Diagnosis based on clinical findings and geography | |||
==Management== | |||
*Supportive care | |||
==See also== | |||
[[Tick borne illnesses]] | |||
==References== | ==References== | ||
<references/> | <references/> | ||
Revision as of 16:06, 9 September 2017
Bakground
- Abbreviation: CTF
- Also called mountain tick fever, American tick fever
- Caused by RNA virus of genus Coltivirus in family Reoviridae
- Principal vector is Rocky Mountain wood tick (Dermacentor andersoni)
- Principal zoonotic reservoirs include deer, marmots, porcupines
- Endemic in western mountainous regions of the U.S. and Canada (e.g. Colorado, Idaho)
- Develops March to September, most cases occur in April, May, June [1]
Clinical features
- Incubation time ranges from 1-14 days
- Onset of illness characterized by fever (may be biphasic), chills, headache, myalgias, malaise, photophobia
- Less commonly sore throat, vomiting, abdominal pain, skin rash (macular or petechial)
- Rarely, patients may develop severe illness that affects central nervous system with symptoms including neck stiffness and confusion [2]
Differential diagnosis
Tick Borne Illnesses
- Babesiosis
- Colorado tick fever
- Ehrlichiosis
- Heartland virus
- Lyme
- Murine typhus
- Rocky mountain spotted fever
- Southern tick-associated rash illness (STARI)
- Tick paralysis
- Tularemia
Evaluation
- Diagnosis based on clinical findings and geography
Management
- Supportive care
See also
References
- ↑ Colorado tick fever. MedlinePlus. https://medlineplus.gov/ency/article/000675.htm. Retrieved 9/9/2017.
- ↑ Colorado tick fever. Center for Disease Control and Prevention. 13 Jan 2015. https://www.cdc.gov/coloradotickfever/symptoms-treatment.html. Retrieved 9/9/2017.