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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
Outbreaks of Zika are occurring in many countries and territories. Zika infection during pregnancy can cause a serious birth defect of the brain called microcephaly, and is linked to other problems in fetuses and infants infected with Zika before birth. CDC is also investigating the link between Zika and Guillain-Barré syndrome. CDC has posted travel notices and is working with partners around the world to better understand and control Zika.

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.

pregnant woman with her hands on her stomachReady: Prepare. Plan. Stay Informed. Social Media at CDC Emergency