Autochthonous Chikungunya Fever in Traveler Returning to Japan from Cuba

摘要

To the Editor: Chikungunya fever is a febrile illness caused by mosquito-transmitted chikungunya virus (CHIKV; genus Alphavirus, family Togaviridae). Clinical signs and symptoms typically begin with high-grade fever after an incubation period of 2–4 days (1). Other common symptoms include polyarthralgia, which is usually symmetric and involves multiple and distal joints, and skin involvement manifesting as a macular or maculopapular rash (2). Peripheral lymphadenopathy (most often cervical) and conjunctivitis might also occur (3).