In Hepatitis C Protocols, Johnson Y.-N. Lau and his expert collaborators present cutting-edge techniques for study of the hepatitis C virus infection and its disease, hepatitis C, which afflict an estimated 170 million people worldwide. The methods range from the detection of anti-HCV in serum and HCV in liver tissue, to HCV genotyping and the detection and quantification of HCV in serum. In addition to these key protocols, the authoritative contributors also describe methods on immunological test systems, induding the identification of important antigenic epitopes, antibodies, and recombinant antigens. Molecular and immunological techniques to study this virus and its infection, as well as animal models and recombinant virus technology commonly used to express hepatitis C viral proteins, are also described.