"Hepatitis C is the most common blood-borne pathogen in humans and the most common cause of liver failure and reason for liver transplantation in the United States.¹ In a large population-based study, 1.8% (3.9 million) of a large household-based sample was positive for anti-hepatitis C virus antibody.² Of these, 74% (2.7 million) had viremia, an indicator of chronic infection. As many as half of these persons were unaware they were infected.^3,4"