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Living with Tick-borne encephalitis

An infection spread by tick bites that can inflame the brain and nervous system.

Understanding Tick-borne encephalitis

Tick-borne encephalitis is an infection caused by the TBE virus that affects the central nervous system.

It is spread mainly by bites from ticks of the Ixodes genus. It often comes in two phases. The first is a flu-like illness with fever, and the second can involve meningitis (swelling around the brain and spinal cord) or inflammation of the brain or spinal cord. It can happen at any time in life.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Headache
  • Fatigue
  • Nausea and loss of appetite
  • Muscle aches (myalgia)
  • Joint pain (arthralgia)
  • Fever in the first phase

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include brain and nervous system specialists and seizure and epilepsy specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

  4. Connect with expert centers

    Epilepsy Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Seizure and epilepsy specialists (epileptologist)
Expert care
Expert lists: Epilepsy Foundation
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Encephalitis411 and other patient organizations
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
How is tick-borne encephalitis diagnosed?
Which symptoms in the second phase need urgent care?
How can I lower my chance of tick bites?

Quick facts

Symptoms usually startany time in life

It is caused by the TBE virus, which people usually get from the bite of an Ixodes tick.

InfectiousNeurological

Also known as: central european encephalitis; far eastern tbe; russian spring-summer encephalitis; siberian tick-borne encephalitis; taiga encephalitis; tbe

Patient organizations

Source: NIH GARD · Tick-borne encephalitisGARD ID 5216 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Tick-borne encephalitis.

Explore the Tick-borne encephalitis blog

Explore research for Tick-borne encephalitis

Explore actively recruiting Tick-borne encephalitis studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Tick-borne encephalitis with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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