Powassan encephalitis Contents Presentation Diagnosis Prognosis References External links Navigation menu10.1016/j.cll.2015.07.00626593260"Cumulative human disease cases reported to CDC ArboNET for 2015""Powassan virus: isolation of virus from a fatal case of encephalitis"183084913652010"Antigenic relationship between Powassan and Russian spring-summer encephalitis viruses"19377791380811210.1089/vbz.2008.002218959500A84.8eeexpanding ite
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Viral encephalitisTick-borne diseasesNervous system disease stubs
Powassan virusflavivirusdeer tick virusarbovirustick bitesco-infectionLyme diseasehumansspeciesgeographicUnited Stateszoonosisanimal diseaserodentsantigenicallyFar Eastern tick-borne encephalitis virusesSymptoms
Powassan encephalitis
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| Powassan encephalitis | |
|---|---|
| Specialty | Infectious disease  |
Powassan encephalitis, caused by the Powassan virus (POWV), a flavivirus also known as the deer tick virus, is a form of arbovirus infection that results from tick bites. It can occur as a co-infection with Lyme disease since both are transmitted to humans by the same species of tick.[1] There has been a surge in the number of cases and geographic range in the last decade. In the United States, cases have been recorded in the northeast.[2] The disease was first isolated from the brain of a boy who died of encephalitis in Powassan, Ontario, in 1958.[3] The disease is a zoonosis, an animal disease, usually found in rodents and ticks, with spillover transmission to humans. The virus is antigenically related to the Far Eastern tick-borne encephalitis viruses.[4]
Contents
1 Presentation
2 Diagnosis
3 Prognosis
4 References
5 External links
Presentation
Symptoms manifest within 7–10 days and include fever, headache, partial paralysis, confusion, nausea and even coma.
Diagnosis
Prognosis
There is currently no established treatment.[5]
Half of all cases results in permanent neurological damage and 10-15% result in death.
References
^ Caulfield, AJ; Pritt, BS (December 2015). "Lyme Disease Coinfections in the United States". Clinics in laboratory medicine. 35 (4): 827–46. doi:10.1016/j.cll.2015.07.006. PMID 26593260..mw-parser-output cite.citationfont-style:inherit.mw-parser-output .citation qquotes:"""""""'""'".mw-parser-output .citation .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-ws-icon abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center.mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-maintdisplay:none;color:#33aa33;margin-left:0.3em.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em
^ "Cumulative human disease cases reported to CDC ArboNET for 2015". United States Geological Survey.
^ McLEAN, DM; DONOHUE, WL (1 May 1959). "Powassan virus: isolation of virus from a fatal case of encephalitis". Canadian Medical Association Journal. 80 (9): 708–11. PMC 1830849. PMID 13652010.
^ CASALS, J (13 February 1960). "Antigenic relationship between Powassan and Russian spring-summer encephalitis viruses". Canadian Medical Association Journal. 82: 355–8. PMC 1937779. PMID 13808112.
^ Hinten SR, Beckett GA, Gensheimer KF, et al. (December 2008). "Increased recognition of Powassan encephalitis in the United States, 1999-2005". Vector Borne Zoonotic Dis. 8 (6): 733–40. doi:10.1089/vbz.2008.0022. PMID 18959500.
External links
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Categories:
- Viral encephalitis
- Tick-borne diseases
- Nervous system disease stubs
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