CDC Current Outbreak List

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

Recent investigations reported on CDC.gov

Organic Walnuts – E coli Outbreak Announced April 2024
Fresh Basil – Salmonella Outbreak Announced April 2024
Measles Outbreaks 2024 Announced January 2024
Coronavirus Disease 2019 (COVID-19) Announced January 2020

Travel Notices Affecting International Travelers

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

Level 2 - Global Polio April 2024
Level 1 - Global Measles April 2024
Level 1 - Oropouche Fever in South America April 2024
Level 1 - Dengue in Africa and the Middle East April 2024
Level 1 - Dengue in the Americas April 2024
Level 1 - Dengue in Asia and the Pacific Islands April 2024
Level 2 - Chikungunya in Timor-Leste April 2024

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.

Food Safety Recalls

International Outbreaks

Ebola Outbreak History Announced September 2022
Mpox Outbreaks Announced May 2022
Coronavirus Disease 2019 (COVID-19) Announced January 2020

Further Sources for Content about Specific Outbreaks

Multistate Foodborne Outbreaks – Foodborne outbreaks listed by year
Hepatitis A Outbreaks – Hepatitis A outbreak investigations since 2013 where CDC supported or led the investigation.
US Outbreaks Linked to Contact with Animals or Animal Products
Health Alert Network – Health alerts, health advisories, updates, and info service messages. Designed for public health and medical communities.
Recent Outbreaks and Incidents – Events involving the CDC Emergency Operations Center
Morbidity and Mortality Weekly Report – Outbreak investigation reports included among other content. Note that outbreak material includes state health department investigations. Designed for public health and medical communities.