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Infectious disease outbreaks currently being reported on by CDC. Listings include those outbreaks for which content is currently published on the CDC website.

U.S.-Based Outbreaks

International Outbreaks

Outbreaks Affecting International Travelers

Please see the Travelers' Health site for a complete list.

Understanding Outbreaks

In the last two years, CDC has sent scientists and doctors out more than 750 times to respond to health threats. Learn more below.


Further Sources for Content about Specific Outbreaks

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  • Page last reviewed: January 30, 2017
  • Page last updated: January 23, 2017
  • Content source: