II. Epidemiology

  1. Rare Encephalitis cause in Northeastern and North Central States

III. Pathophysiology

  1. Tickborne Illness via Woodchuck Tick or Groundhog Tick (Ixodes cookei, I. marxi or I. Scapularis)

IV. Findings

  1. Presentations range from asymptomatic to severe neurologic Impairment

V. Labs

  1. Antibody to Powassan Virus (serum, CSF)

VI. Differential Diagnosis

VII. Management

  1. No known effective treatment
  2. Supportive care

VIII. Prognosis

  1. Cognitive Impairment in >50% of survivors, and 10-15% mortality

IX. Resources

Images: Related links to external sites (from Bing)

Related Studies

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MSH D004675
SnomedCT 80110006, 416543004
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Dutch Powassan; encefalitis, encefalitis; Powassan, Powassan-encefalitis

Ontology: Powassan virus (C0032859)

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Spanish Virus Powassan, virus Powassan (organismo), virus Powassan
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