In Part Two, Mickey Urdea is picking up where he left off with the discovery of Non-A, Non-B Hepatitis, moving forward to the work that was done for developing accurate RNA tests for Hepatitis C, what genotypes and subtypes were uncovered, how the universally agreed-upon nomenclature and labeling of those subtypes were solidified by him and his team at Chiron, and how surprisingly important genotyping became for appropriate treatment of HCV infection.