National case definition: Giardiasis
Date of last revision/review: May 2008
Only confirmed cases of disease should be notified.
Type of surveillance
Routine case-by-case notification to the federal level
Laboratory confirmation of infection with or without symptoms from stool, duodenal fluid or small bowel biopsy specimen:
- demonstration of Giardia lamblia
- demonstration of Giardia lambia antigen
Clinical illness in a person who is epidemiologically linked to a confirmed case
Clinical illness is characterized by diarrhea, abdominal cramps, bloating, weight loss, fatigue or malabsorption.
- A07.1 Giardiasis (lambliasis)
- 007.1 Giardiasis
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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