Nelson Textbook of Pediatrics 22nd Edition | Chikungunya virus (CHIKV) is an alphavirus transmitted by Aedes aegypti and Aedes albopictus mosquitoes. It causes acute febrile illness with severe, often debilitating polyarthralgia (hands, wrists, ankles), maculopapular rash, and myalgia. Chronic arthralgia may persist for months to years. No specific antiviral therapy; supportive care with NSAIDs/acetaminophen. Prevention: mosquito avoidance.
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