ARCHIVED - Brucellosis

Nationally notifiable since 1928

1.0 National Notification

Only confirmed cases of disease should be notified.

2.0 Type of Surveillance

Routine case-by-case notification to the federal level

3.0 Case Classification

3.1 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

3.2 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)

4.0 Laboratory Comments

5.0 Clinical Evidence

Clinical illness characterized by acute or insidious onset of fever, night sweats, undue fatigue, anorexia, weight loss, headache and arthralgia.

6.0 ICD Code(s)

6.1 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

6.2 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

7.0 Type of International Reporting

8.0 Comments

Probable case definitions are provided as guidelines to assist with case finding and public health management, and are not for national notification purposes.

9.0 References

Date of Last Revision/Review:

May 2008