These are tests to determine if you have been exposed to other viruses that can cause or worsen liver disease. Vaccines for hepatitis A and B are recommended for all unvaccinated patients with hepatitis C. A positive test result for hepatitis A and B may indicate you were previously exposed or vaccinated and the results should be interpreted by your provider.

A positive test result for HIV indicates exposure to the HIV virus and requires referral to an infectious disease specialist. HIV is treatable and should be treated before HCV treatment can be provided. Hepatitis C treatments are as effective in patients with HIV as they are in patients without HIV.