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Disease overviewEurope and Asia

What is tick-borne encephalitis?

Tick-borne encephalitis is a viral infection found in parts of Europe and Asia; some infections progress to inflammation of the brain or surrounding membranes.

Reviewed by VuxLore® Knowledge Team For Travellers and residents

Short answer

Tick-borne encephalitis is a viral infection found in parts of Europe and Asia; some infections progress to inflammation of the brain or surrounding membranes.

At a glance

Risk is highly local and seasonal, and vaccination may be recommended for some residents or travellers with likely exposure.

Key takeaways

• Check destination-specific risk maps.

• Discuss vaccination before travel.

• Neurological symptoms need urgent care.

Risk varies within countries

The virus is mainly transmitted by infected Ixodes ticks, with rare food-borne outbreaks linked to unpasteurised dairy products in some regions. Many infections are asymptomatic.

Plan before exposure

Consult official travel-health advice early enough to complete any recommended vaccine course. Tick prevention remains necessary because the vaccine does not prevent other tick-borne diseases.

Sources and further reading