Severe fever thrombocytopenia syndrome proceeding east

Severe fever thrombocytopenia syndrome (SFTS) is a tick-borne viral hemorrhagic fever prevalent throughout Asia. In 2024, our hospital in eastern Shizuoka reported three consecutive cases of SFTS, the first such cluster identified in this region. Since April 2013, the confirmed area of infection has expanded from Kyushu to Shizuoka, which currently marks the easternmost limit. As global warming progresses, the spread of SFTS is projected to increase.