About these resources
When two or more people get the same illness from the same source, the event is called an outbreak. The list on this page includes multistate outbreak investigations involving Campylobacter and some notable single-state outbreaks.
For a fuller listing of outbreaks reported to CDC, please use the Bacteria, Enterics, Ameba, and Mycotics (BEAM) Dashboard.
Public health officials investigate outbreaks to control them, so more people do not get sick, and to learn how to prevent similar outbreaks from happening in the future.
Selected Outbreak Investigations
Information about Campylobacter outbreaks
Frequency
Campylobacter outbreaks are not commonly reported, but the frequency has generally been increasing since 1998.
Causes
Raw milk, poultry, and drinking water have been the most commonly identified sources of Campylobacter outbreaks.
Detection
Outbreaks are identified when reported cases increase in a specific location or time period. State, local, and territorial public health departments have the primary responsibility for identifying and investigating Campylobacter outbreaks.
Reporting
Outbreaks are reported to CDC by state health departments through the National Outbreak Reporting System (NORS).
BEAM Dashboard
Get info on outbreaks reported to CDC.