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Chikungunya virus is transmitted to people by two species of mosquitoes, Aedes aegypti and Aedes albopictus (also known as invasive Aedes). Both species are found in Los Angeles County. 

People infected with chikungunya virus typically develop fever and joint pain. Other symptoms can include muscle aches, headaches, joint swelling or rash. This virus is not spread person to person. There is no vaccine and no specific treatment for infection.

The best way to protect yourself and your family from chikungunya is to prevent being bitten by mosquitoes by using insect repellent, wearing long sleeves and pants, using air conditioning or window/door screens to keep mosquitoes outside, and reducing mosquito breeding ground such as standing water.

Since invasive Aedes are found in much of Los Angeles County, a local outbreak of chikungunya is possible.  A local outbreak would most likely occur if an infected traveler transmits the virus to a local mosquito. To prevent this, residents must help reduce the population of mosquitoes and take precautions to prevent mosquito bites, especially when traveling to or from areas where chikungunya is found.

If traveling, check CDC travel warnings to see if mosquito-borne diseases are present near your destination. Follow CDC travel recommendations.  

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This digitally-colorized transmission electron microscopic (TEM) image depicts numerous Chikungunya virus particles, which are composed of a central dense core that is surrounded by a viral envelope. Each virion is approximately 50nm in diameter. CDC/ Cynthia Goldsmith, James A. Comer, and Barbara Johnson