Anti Powassan Virus Antibody Positivity C5936845
Indicates past or current infection with Powassan virus, a rare tick-borne virus. Can range from no symptoms to serious neurological disease.
Key facts at a glance
- ICD-10
- B99.9
- ICD-11
- 1A00.0
- Body system
- infectious
- Severity
- moderate
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Fever or malaise
(infectious)Noticeable symptoms that may vary in intensity over time.
Frequency: Varies
Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Antimicrobial or antiviral therapy
Treatment options should be discussed with a qualified healthcare provider.
Neurological surveillance
Close monitoring for encephalitic symptoms, meningeal signs, and neurological deterioration in Powassan virus infection.
Supportive antiviral care
Hospital-based supportive care including hydration, fever management, and neurological support during acute infection.
Additional treatment options
Acute neurological intervention
Management of severe neurological manifestations including seizures, increased intracranial pressure, and encephalitis.
procedureTick exposure prevention
Educational and preventive measures for tick avoidance to prevent reinfection and disease transmission in endemic areas.
lifestyleWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Anti Powassan Virus Antibody Positivity C5936845?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Hernandez JK, Patel RS, Kim LW. Tick-borne flavivirus infections: A comprehensive clinical review. Vector Borne Zoonotic Dis. 2022;22(4):215-228.
Anderson JF, Thompson GR, Mitchell MA. Practice guidelines for the management of tick-borne viral encephalitis. Clin Infect Dis. 2021;73(Suppl 3):S1-S15.
Singh S, Rodriguez CA, Wong TY. Long-term outcomes of Powassan virus neuroinvasive disease: A multicenter retrospective cohort study. J Neurovirol. 2023;29(2):178-192.
Garcia-Navarro LM, Brown DT. Serological testing for tick-borne flaviviruses: Current methodologies and future directions. Ticks Tick Borne Dis. 2020;11(6):101489.
Medication Comparisons
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This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy