FIG. 1.

Evolution of HDV load in chronically infected patients treated with IFN. (A) Viral load kinetics suggesting a virological response to PEG-IFN. Patients A and B seemed to respond to the treatment and to negate their viral loads. Patients C and D had detectable viral loads at the end of the treatment, with decreases of >5 log₁₀ copies/ml of serum. (B) Viral load kinetics suggesting no virological response to PEG-IFN. Viral load decreases did not exceed 2.5 log₁₀ copies/ml during the course of the treatment. In the cases of patients E, F, H, and I, the initial viral load was >6 log₁₀ copies/ml.