| HCV | Hepatitis C virus |
| DAA | Direct-acting antiviral |
| HVR | Hypervariable region |
| NS | Nonstructural |
| IFN | Interferon |
| ISDR | IFN-sensitivity-determining region |
| UTR | Untranslated region |
| RBV | Ribavirin |
| SVR | Sustained virologic response |
| FDA | Food and Drug Administration |
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