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Recent Outbreaks and Incidents

For a list of the latest updates, please see the What's New page or visit CDC’s Current Outbreak List.

Scientist in a hazmat suitEbola Outbreak in West Africa (March 2014-present)
Since March 2014, CDC, along with domestic and international governments and partners, have been working to stop an outbreak of Ebola Viral Disease (EVD) in West Africa.

A female Aedes aegypti mosquito in the process of acquiring a blood meal from her human host.Chikungunya in the Americas (June 2014-present)
Local transmission has been identified in 29 countries or territories in the Caribbean, Central America, South America, or North America. The mosquitoes that transmit the virus are found throughout much of the Americas, including parts of the United States.

Photo of mud and debris sliding down a hill.Washington Oso Mudslide (March 2014)
On March 22, 2014, a major mudslide occurred 4 miles (6.4 km) east of Oso, Washington, United States. Learn more about what to do before, during and after a mudslide.

Photo of a lake surrounded by mountains. West Virginia Chemical Release (January 2014)
On January 9, 2014, an estimated 10,000 gallons of an industrial chemical, 4-Methylcyclohexanemethanol (MCHM), spilled into the Elk River just upstream from the Kanawha County municipal water intake in Charleston, West Virginia.

Photo of a winter scene. Polar Vortex (December 2013 - January 2014)
Southward shifts of the North Polar Vortex brought major cold air outbreaks to the Northern Hemisphere. Learn how to protect yourself and others during extreme cold weather.

Ready: Prepare. Plan. Stay Informed.Social Media at CDC Emergency

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