Shigellosis (Shigella species)

Clinical criteria
Any person with at least one of the following four:
- Diarrhoea
- Fever
- Vomiting
- Abdominal pain

Laboratory criteria
For a confirmed case:
- Isolation of Shigella spp. from a clinical specimen

For a probable case:
- Detection of Shigella spp. nucleic acid in a clinical specimen in the absence of subsequent culture confirmation

Epidemiological criteria
At least one of the following two:
- Human to human transmission
- Exposure to a common source

Case classification
A. Possible case
NA
B. Probable case
Any person meeting the clinical criteria and with an epidemiological link
OR
Any person meeting the clinical criteria and laboratory criteria for a probable case
C. Confirmed case
Any person meeting the clinical and the laboratory criteria for a confirmed case 

Current as of: 22 January 2019 

Historic Case Definitions