Laboratory-based Enteric Disease Surveillance (LEDS) System
CDC collects national Salmonella surveillance data through passive surveillance of laboratory-confirmed human Salmonella isolates in the United States.
Clinical diagnostic laboratories submit Salmonella isolates to state and territorial public health laboratories, where they are confirmed and serotyped.
Unusual or un-typable serotypes are forwarded to CDC for further characterization or confirmation. Results are reported back to state and territorial public health laboratories.
State and territorial public health laboratories send reports electronically to CDC, which are collected in LEDS.
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Other Surveillance Systems
CDC has several other surveillance systems for obtaining information about Salmonella. The systems serve different purposes and provide information on various features of the organism's epidemiology.
Animal Contact Outbreak Surveillance System (ACOSS)*
Foodborne Disease Outbreak Surveillance System (FDOSS)*
Foodborne Disease Active Surveillance Network (FoodNet)
National Antimicrobial Resistance Monitoring System (NARMS)
National Molecular Subtyping Network for Foodborne Disease Surveillance (PulseNet)
National Notifiable Diseases Surveillance System (NNDSS)
Waterborne Disease and Outbreak Surveillance System (WBDOSS)*
*ACOSS, FDOSS, and WBDOSS are part of the National Outbreak Reporting System (NORS).
Data Tools
Search and access information reported to CDC on Salmonella with the following online data tools. Data are displayed on interactive maps, graphs, and charts and available for download.
Bacteria, Enterics, Amoeba, and Mycotics (BEAM) Dashboard includes national surveillance data on Salmonella illnesses and outbreaks reported to multiple surveillance systems.
FoodNet Fast provides data on rates of Salmonella infection and diagnostic testing practices in FoodNet's surveillance area.
NARMS Now shows how antimicrobial resistance has changed since 1999 for Salmonella.