Chronic Liver Disease - Hepatitis A Vaccination

Specific Exclusions: 1. Patients with a previous history of viral hepatitis 2. Patients who report an allergy to Hepatitis A vaccine A. General exclusions: 1. Evidence of metastatic disease or active treatment of malignancy (chemotherapy or radiation therapy) in the last 6 months; 2. Patients who have been in a skilled nursing facility in the last 3 months (this exclusion is included to avoid holding physicians who care for patients during a transitional period, e.g. temporary SNF placement, for their ongoing care; hence, the time limitation of 3 months).