Antibody to Hepatitis A (anti-HAV) appears early in the course of illness. Detection of IgM anti-HAV is an excellent test for diagnosis of Acute Hepatitis A. Peak titers of IgM occur during the first week of clinical disease and usually disappear within 3-6 months. Titers of IgG peak after one month of the disease and may persist for years.

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Mark Riegel, MD
Mark Riegel, MD

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