Tick-Borne Encephalitis

This infection is caused by two closely related viruses (Central European Encephalitis Virus and Russian Spring-Summer Encephalitis) and is transmitted by infected Ixodes ricinus ticks found in forested areas in central, northern, and eastern Europe, including Russia.

All travellers who engage in hiking, camping, or similar outdoor activities in rural wooded regions of endemic areas should take measures to prevent tick bites. Tick-bite prevention measures include applying a DEET-containing repellent to exposed skin and permethrin spray (or solution) to clothing and gear.

Vaccination is recommended for persons involved in recreational activities in forested areas (camping, hiking) or working in forestry occupations. Risk season is from March to November.

Risk of Tick-Borne Encephalitis is present in the following countries:



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