Analysis of HCV DAA resistance mutations in HIV and HTLV-1 superinfection cases - Analysis of HCV DAA resistance mutations in HIV and HTLV-1 superinfection cases

HCV RNA was extracted using the remaining serum, and DAA drug resistance mutations were analyzed using direct sequencing. DAA drug resistance mutations were observed in 2 out of 6 HIV co-infected cases and in 5 out of 22 HTLV-1 co-infected cases, but the frequency of these mutations was similar to that in HCV monoinfected cases.