Current Outbreaks

What to know

  • Most foodborne outbreaks that spread across multiple states are caused by Campylobacter, E. coli, Listeria, and Salmonella.
  • CDC typically coordinates between 17 and 36 investigations of foodborne illnesses involving multiple states each week.
  • Some of these investigations result in outbreak notices, which are posted online.
illustration of cheese, raw chicken and veggies with a microscope showing germs

Investigations

The table below shows the number of active CDC multistate investigations for Campylobacter, Shiga toxin-producing E. coli, Listeria monocytogenes, and Salmonella each week.

Active investigations by germ

  • Campylobacter: 0
  • E. coli: 0
  • Listeria: 6
  • Salmonella: 18

Outbreak notices

Multistate foodborne investigations led by CDC sometimes result in outbreak notices. These notices let people know actions they can take to stay healthy.

The table below shows selected multistate foodborne outbreak notices CDC has issued since 2006. For information on all foodborne outbreaks reported to CDC since 1998, use the .

Reminder

Not all foodborne outbreaks investigated by CDC result in online outbreak notices.

Active Investigations of Possible Multistate Foodborne Outbreaks

Additional information

Roles in a response

CDC works closely with our federal regulatory partners, FDA and USDA-FSIS, on foodborne outbreak investigations.

Additional foodborne germs

Foodborne outbreaks are sometimes caused by other germs. Information on active outbreaks caused by these germs can be found on their websites.

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Content Source:
National Center for Emerging and Zoonotic Infectious Diseases (NCEZID)