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Case reports fatal tick-borne encephalitis in a traveler from the US, suggesting increased risk from international travel and climate change.
We report an unvaccinated traveler from the United States who contracted fulminant fatal tick-borne encephalitis while visiting Switzerland. Climate changes and international travel are intensifying tick exposure for unvaccinated persons. The increasing incidence of tick-borne encephalitis across Europe underscores the importance of tick bite prevention and vaccination against tick-borne encephalitis virus.
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Scotti et al. (2025) studied this question.
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