tick-borne encephalitis
Findings
No curated finding names tick-borne encephalitis yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Definition
Tick-borne encephalitis is caused by an arbovirus of the Flaviviridae family (tick-borne encephalitis virus, TBEV), transmitted principally by the bite of the Ixodes ricinus tick. The symptomology is biphasic, with the initial phase being associated with a flu-like illness and the second phase (occurring in less than 10% of patients) with symptoms of meningitis or, more rarely, meningoencephalitis.
Definition from the Mondo Disease Ontology (MONDO:0017572), read 2026-09-29. CC BY 4.0.
Features
65 features
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, annotations 2026-09-02.
- CSF pleocytosisHPOHP:0012229
- Very frequent (80% to 99% of cases)
- Abnormal circulating cytokine concentrationHPOHP:0011112
- Frequent (30% to 79% of cases)
- AnorexiaHPOHP:0002039
- Frequent (30% to 79% of cases)
- ArthralgiaHPOHP:0002829
- Frequent (30% to 79% of cases)
- Decreased total leukocyte countHPOHP:0001882
- Frequent (30% to 79% of cases)
- FatigueHPOHP:0012378
- Frequent (30% to 79% of cases)
- HeadacheHPO · Mondo
Show the remaining 53
- Abnormal glossopharyngeal nerve morphologyHPOHP:3000047
- Occasional (5% to 29% of cases)
- Abnormality of the vestibular nerveHPOHP:0011392
- Occasional (5% to 29% of cases)
- Atypical behaviorHPOHP:0000708
- Occasional (5% to 29% of cases)
- Back painHPOHP:0003418
- Occasional (5% to 29% of cases)
- Cognitive impairmentHPOHP:0100543
- Occasional (5% to 29% of cases)
- Decreased vigilanceHPOHP:0032044
- Occasional (5% to 29% of cases)
Where it sits
Other names
2 names
Resolves to: tick-borne encephalitis
- Also called
- TBETick-borne viral encephalitis