CSTE Position Statement(s)
Clinical DescriptionAn illness of variable severity commonly manifested by diarrhea, abdominal pain, nausea, and sometimes vomiting. Asymptomatic infections may occur, and the organism may cause extraintestinal infections.
Laboratory Criteria For DiagnosisIsolation of Salmonella from a clinical specimen.
ProbableA clinically compatible case that is epidemiologically linked to a confirmed case.
ConfirmedA case that meets the laboratory criteria for diagnosis. When available, O and H antigen serotype characterization should be reported.
For users of the legacy National Notifiable Diseases Surveillance System, laboratory-confirmed isolates are also reported via the Public Health Laboratory Information System (PHLIS), which is managed by the Foodborne and Diarrheal Diseases Branch, Division of Bacterial and Mycotic Diseases, National Center for Infectious Diseases, CDC. The National Electronic Disease Surveillance System (NEDSS) or NEDSS compatible systems will eventually replace PHLIS and NETSS; users of NEDSS or compatible systems which report to CDC should not report via PHLIS.
Both asymptomatic infections and infections at sites other than the gastrointestinal tract, if laboratory confirmed, are considered confirmed cases that should be reported.
The 2005 case definition appearing on this page was re-published in the 2009 CSTE position statement 09-ID-56. Thus, the 2005 and 2010 versions of the case definition are identical.
1. CDC. (1990). Case Definitions for Public Health Surveillance. MMWR, 39(RR-13), 1-43. https://www.cdc.gov/mmwr/preview/mmwrhtml/00025629.htm