Tick-borne encephalitis (TBE) is a viral infection that affects the central nervous system, primarily transmitted through the bite of infected ticks. It is most common in certain regions of Europe and Asia, particularly in forested areas where ticks thrive. Symptoms can range from mild flu-like signs to severe neurological issues, including confusion and seizures. Preventive measures include vaccination in high-risk areas and avoiding tick bites by wearing protective clothing and using insect repellent. Early diagnosis and treatment are crucial for managing the disease and reducing the risk of long-term complications.