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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.

Aedes MosquitoZika Virus Disease Outbreak in Central and South America, the Caribbean, and Mexico
CDC has issued travel notices for people traveling to certain regions and countries where Zika virus transmission is ongoing. These alerts follow reports in Brazil of microcephaly and other poor pregnancy outcomes in babies of mothers who were infected with Zika virus while pregnant. CDC is working with health authorities in the affected countries and with public health experts across the U.S. Department of Health and Human Services to take additional steps related to Zika virus.

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 virus 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)
Since late 2013 local transmission of chikungunya has been reported in 43 countries and territories throughout the Americas as well as in Florida, Puerto Rico, and the U.S. Virgin Islands. Chikungunya virus disease cases have been reported among U.S. travelers returning from affected areas.

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