National case definition: Brucellosis
Date of last revision/review: May 2008
National notification
Only confirmed cases of disease should be notified.
Type of surveillance
Routine case-by-case notification to the federal level
Case classification
Confirmed case
Clinical illness with laboratory confirmation of infection:
- Isolation of Brucella sp. from an appropriate clinical specimen
or - A significant (i.e., fourfold or greater) rise in Brucella agglutination titre between acute and convalescent serum specimens obtained 2 or more weeks apart and tested at the same laboratory
Probable case
- Clinical illness in a person who is epidemiologically linked to a confirmed animal case
or - Clinical illness with supportive serology (Brucella agglutination test titre of 1:160 or higher in one or more serum specimens obtained after onset of symptoms)
Clinical evidence
Clinical illness characterized by acute or insidious onset of fever, night sweats, undue fatigue, anorexia, weight loss, headache and arthralgia.
ICD code(s)
ICD-10 code(s)
- A23 Brucellosis (includes fever: Matla, Mediterranean, undulant)
- A23.0 Brucellosis due to Brucella melitensis
- A23.1 Brucellosis due to Brucella abortus
- A23.2 Brucellosis due to Brucella suis
- A23.3 Brucellosis due to Brucella canis
- A23.8 Other brucellosis
- A23.9 Brucellosis, unspecified
ICD 9 code(s)
- 023 Brucellosis, (Includes fever: Malta, Mediterranean, undulant)
- 023.8 Other brucellosis, Infection by more than one organism
- 023.9 Brucellosis, unspecified
Comments
Probable case definitions are provided as guidelines to assist with case finding and public health management, and are not for national notification purposes.
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