Hepatitis A, Acute 2019 Case Definition - cdc.gov

Confirmed. A case that meets the clinical criteria and is IgM anti-HAV positive §, OR; A case that has hepatitis A virus RNA detected by NAAT (such as PCR or genotyping), OR A case that meets the clinical criteria and occurs in a person who had contact (e.g., household or sexual) with a laboratory-confirmed hepatitis A case 15-50 days prior to onset of symptoms.…