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Observium Tick-borne encephalitis

Tick-borne encephalitis Tick-borne encephalitis virus

Tick-borne encephalitis (TBE) is a viral infectious disease involving the central nervous system, transmitted by the bite of several species of infected ticks. The disease most often manifests as meningitis, encephalitis or meningoencephalitis. Myelitis and spinal paralysis also occur. In about one third of cases sequelae, predominantly cognitive dysfunction, persist for a year or more.

2WHO outbreaks
0Cases reported
0Deaths
1Countries affected

Countries with active outbreaks

  • United Kingdom — 2 events

Recent events

  • 2026-05-21T09:56:32+00:00 · United Kingdom — What is tick-borne encephalitis virus and is it found in the UK?
  • 2026-05-21T08:30:04+00:00 · United Kingdom — Tick-borne encephalitis: epidemiology, diagnosis and prevention

Frequently asked questions

What is Tick-borne encephalitis?

Tick-borne encephalitis is an infectious disease caused by Tick-borne encephalitis virus. Tick-borne encephalitis (TBE) is a viral infectious disease involving the central nervous system, transmitted by the bite of several species of infected ticks. The disease most often manifests as meningitis, encephalitis or meningoencephalitis. Myelitis and spinal paralysis also occur. In about one third of cases sequelae, predominantly cognitive dysfunction, persist for a year or more.

How is Tick-borne encephalitis transmitted?

The main transmission routes of Tick-borne encephalitis are: tick-borne (Ixodes), raw dairy.

Where is Tick-borne encephalitis endemic?

Tick-borne encephalitis is endemic in the following regions: Central/Eastern Europe, Russia, China.

What is the case fatality rate of Tick-borne encephalitis?

The typical case fatality rate (CFR) of Tick-borne encephalitis is 1–2%.

How many active Tick-borne encephalitis outbreaks worldwide?

Currently 2 active WHO outbreaks reported, with None cases and None deaths in the surveillance window.

Official sources

Observium aggregates real-time data from authoritative sources: WHO Disease Outbreak News, CDC NNDSS, ECDC, Europe PMC, Italian Ministry of Health, ISS, UKHSA, RIVM, RKI, BAG, ISCIII, NICD, and 20+ national sources plus Google News.

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