National case definition: Hepatitis B

Hepatitis B

Date of last revision/review: May 2008

National notification

The following cases of disease should be notified:

Type of surveillance

Routine case-by-case notification to the federal level

Case classification

Laboratory comments

Occult HBV infection is characterized by a positive HBV DNA and presence of anti-HBc alone or anti-HBc and anti-HBs in the absence of HBsAg.

Further isolate characterization is indicated for epidemiologic public health and control purposes.

Clinical evidence

Acute clinical illness is characterized by a discrete onset of symptoms and jaundice or elevated serum aminotransferase levels. Chronic infections may present with disease flares with similar symptoms and signs.

ICD code(s)

References

Public Health Agency of Canada. Case Definitions for Communicable Diseases under National Surveillance. Canada Communicable Disease Report. 2009; 35S2.

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