Definition of chikungunya
: a febrile disease that resembles dengue, occurs especially in parts of Africa, India, and southeastern Asia, and is caused by a togavirus (species Chikungunya virus of the genus Alphavirus) transmitted especially by aedes mosquitoes
Chikungunya is rarely fatal but can cause severe fevers, headaches, fatigue, nausea, and muscle and joint pains.— Martin Enserink
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Merriam-Webster unabridged
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Time Traveler for chikungunya
The first known use of chikungunya was in 1954
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