Active Investigations of Multistate Foodborne Outbreaks

What to know

  • CDC typically coordinates between 17 and 36 investigations of foodborne illnesses involving multiple states each week. The table below shows the number of active CDC investigations for Campylobacter, Shiga toxin-producing E. coli, Listeria monocytogenes, and Salmonella. It also includes links to any current CDC outbreak notices.
An illustration of what Salmonella looks like under a microscope.

Active multistate outbreaks

Last Updated June 12, 2024 (updated every Wednesday)

Germ Number of Active Multistate Investigations Current CDC Investigation Notices or Food Safety Alerts
Active Investigations of Possible Multistate Foodborne Outbreaks
Campylobacter 0
  • No active notices or alerts
E. coli 1
Listeria 3
  • No active notices or alerts
Salmonella 13

What CDC and partners do to respond

CDC works closely with our federal regulatory partners, FDA and USDA-FSIS, on foodborne outbreak investigations. For more information about how they work to identify and remove contaminated food from the market, visit their websites:


Foodborne outbreaks are sometimes caused by other germs. For more information about these outbreaks, visit these websites: