The objective of the study is to assess the safety and efficacy of Intron A (3 Mio I.E./m2, 3 times per week) and Rebetol (15 mg/kg/day) in children aged 3 to 17, treated in common medical practice at 10 sites in Germany. The primary objective is to determine if there are any new severe adverse events observed with this recently approved dosing regimen. The study will also evaluate the rates of eradication of the HCV virus.