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Typical pattern of HBV and HDV serologies in HDV infection. Coinfection leads to clearance of both viruses in 95% of patients. Superinfection in a patient with preexisting chronic HBV infection most often leads to chronic HDV infection. HBcAb, hepatitis B core antibody; HBsAb, hepatitis B surface antibody; IgG, immunoglobulin G; IgM, immunoglobulin M.
