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 Chikungunya virus

Chikungunya (Makonde for "that which bends up") is an infection caused by the Chikungunya virus. It causes an illness with an acute febrile phase lasting two to five days, followed by a longer period of joint pains in the extremities; this pain may persist for years in some cases.


The disease is transmitted similarly to dengue fever to humans by virus-carrying Aedes mosquitoes. Specifically, two species of mosquitoes, A. albopictus and A. aegypti are extrinsic hosts (vectors) of Chikungunya virus. The strain of chikungunya spreading to the US from the Caribbean is most easily spread by A. aegypti. Concern exists that this strain of chikungunya could mutate to make the A. albopictus vector more efficient. If this mutation were to occur, chikungunya would be more of a public health concern to the US. The A. albopictus or Asian tiger mosquito is more widespread in the US and is more aggressive than the A. aegypti. It is known that monkeys, apes, and rodents act as a reservoir for the virus. Having rodents as a viral reservoir for chikungunya differs from that of dengue which has only humans and nonhuman primates as hosts.


The best means of prevention is overall mosquito control and the avoidance of bites by any infected mosquitoes. No specific treatment is known, but medications can be used to reduce symptoms. Rest and fluids may also be useful.

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updated Thu. January 25, 2024

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The World Health Organization (WHO) has warned that the chikungunya outbreak in Kenya could spread further in the country's second largest city, Mombasa. The virus is spread by the same daytime-feeding mosquitoes that transmit dengue fever. The symptoms it causes are fever and joint pain and there ...
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Cases of chikungunya have drastically reduced in the past few weeks, Mombasa Health executive Hazel Koitaba has said. The viral disease, which is predominantly transmitted by a female mosquito, is believed to have attacked thousands of Mombasa residents since December last year. However, a report ...
Chikungunya and dengue fever, two painful and debilitating mosquito-borne diseases that broke out in Mombasa in December have been contained. This is a relief to residents. Early this week, Governor Hassan Joho had been hospitalised in a Mombasa hospital suspected to have contracted chikungunya ...
There is no cure for chikungunya, just like any other viral disease. Patients develop immunity that later fights the virus. Meanwhile, the department of public health is distributing purifiers to prevent waterborne diseases. County public health officer Samuel King'ori said the purifiers include chlorine tablets.
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But aedes, the bearer of dengue and chikungunya, may grow by leaps and bounds as untimely rains have swept the city in the last two days, they said. Photos taken by bdnews24.com show how drains and ditches in Hatirjheel have turned into hubs for mosquitoes to breed. The mosquito menace even ...
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