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Hepatitis A, Acute
2000 Case Definition

CSTE Position Statement(s)

  • 09-ID-39

Clinical Description

An acute illness with a) discrete onset of symptoms and b) jaundice or elevated serum aminotransferase levels.

Laboratory Criteria for Diagnosis

Immunoglobulin M (IgM) antibody to hepatitis A virus (anti-HAV) positive

Case Classification


  • A case that meets the clinical case definition and is laboratory confirmed, OR
  • A case that meets the clinical case definition and occurs in a person who has an epidemiologic link with a person who has laboratory-confirmed hepatitis A (i.e., household or sexual contact with an infected person during the 15-50 days before the onset of symptoms)


The 2000 case definition appearing on this page was re-published in the 2009 CSTE position statement 09-ID-39. Thus, the 2000 and 2010 versions of the case definition are identical.