An acute illness with a discrete onset of any sign or symptom consistent with acute viral hepatitis (e.g., anorexia, abdominal discomfort, nausea, vomiting), and either a) jaundice, or b) serum alanine aminotransferase (ALT) levels >400 IU/L
One or more of the following three criteria:
A case that meets the clinical case definition, is laboratory confirmed, and is not known to have chronic hepatitis C.
The 2007 case definition appearing on this page was re-published in the 2009 CSTE position statement 09-ID-40. Thus, the 2007 and 2010 versions of the case definition are identical.