What Are the Different Hepatitis C Genotypes?

Choo et al. In the United States confirmed Hepatitis C virus (HCV) for the first time and reported in 1991 that a full sequence analysis was performed on a HCV strain. According to the differences in the nucleotide sequences of the virus strains, experts from various countries have classified HCV into more than a dozen different genotypes, but the classification and nomenclature of genotypes has not yet been completely unified.