Eight Genotypes and 84 Subtypes of HCV

The hepatitis C virus (HCV) is classified into 7 genotypes and 67 subtypes. Knowing the HCV genotype and subtype has been really important in determining the optimal treatment regimen. A study presented at The AASLD Liver Meeting 2017 – “Identification of Novel HCV Genotype and Subtypes in Patients Treated with Sofosbuvir Based Regimens” – found 17 novel HCV subtypes and 1 novel HCV genotype, unrelated to each other and to previously described HCV subtype