The cure rate for chronic hepatitis C has reached 90 percent using current DAA treatment protocols. Every patient is excited when they are told that the hepatitis C virus is undetectable in their blood. Then, it takes a long time for the patient to believe that he or she is truly cured. The medical term for a successful hepatitis C treatment is SVR a sustained viral response that is maintained for 24 weeks after treatment is completed is SVR24, and more recently, SVR12 has been used in many studies in the literature to indicate a successful treatment. According to hepatologist Eliuk Yoshida and his team. The answer is yes for most of the patients, according to a study by hepatologist Eliok Yoshida and his team. There was no difference between SVR12 and SVR24 in patients treated with the sofosbuvir combination, even though interferon was used in the combination, the study reported. To analyze the data from the study using sofosbuvir, the researchers looked at response rates for genotypes 1 through 6, with a total of 327 patients with genotypes 1, 4, 5, and 6, 294 with genotype 2, and 250 with genotype 3. (Study results: Before talking about the results, two statements are explained: 1. relapse, 2. lower limit of detection quantitative LLOQ) Study results: 777 of 779 patients who obtained SVR12 obtained SVR24, 2 of whom did not obtain SVR24 were all type 3 patients (no cirrhosis, treated) If type 3 is not considered, 100% of patients who obtained SVR12 What about SVR4, which is not as reliable as SVR12? Most relapses occurred within 4 weeks (66 relapses, or 77?6% of relapses), and 17 relapses between 4 and 12 weeks, or 20% of relapses.