The entity is defined as a source-reported aggregate of viral meningitis, encephalitis, or meningoencephalitis, where the applicable source definition boundaries remain series-specific [1]. This classification scope is non-additive and is limited to ontological categorization rather than descriptive disease characterization [1].
Disease overview
Evidence-backed information EN 2/6 applicable sections · ZH 2/6 applicable sections Updated Oct 23, 2026
Viral meningoencephalitis surveillance is a controlled ontology classification denoting a source-reported aggregate of viral meningitis, encephalitis, or meningoencephalitis, with definition boundaries that vary by reporting series [1]. The concept establishes a non-additive classification scope and does not itself supply clinical, epidemiological, exposure, or prevention claims [1].
Read the full clinical and epidemiological profile 3
GlobalID source-data note: Norway's viral central-nervous-system infection category and Sweden's viral meningoencephalitis category are source-reported aggregates whose component etiologies are not separable in the published totals. They are retained for source-faithful analysis and should not be rolled into a single named pathogen.
- 1 GlobalID Disease Ontology. GlobalID ontology concept D240: Viral meningoencephalitis surveillance [Internet]. cited 23 Oct 2026. Available from: https://github.com/xmusphlkg/globalID2/blob/development/configs/disease_ontology.json
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Country surveillance trends
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Coverage
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Surveillance pattern
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