There are not yet any ascertained results concerning the prognosis of the non-A/non-B hepatitis not depending on transfusion. In an identical source of infection meanwhile several working teams in the GDR by means of long-term observations for three years control groups of women able to propagate who were incubated by a hepatitis C-virus (of the non-A/non-B group of the hepatotropic viruses), so that first evidence on posthepatitic sequelae after hepatitis C is possible. Of 115 women who were treated with anti-D-globulin contaminated with C virus 57 women fell ill (= 49.5%). Of them 39 patients (3 68.4%) were cured after 3 years, 7 patients (6 12.3%) showed the signs of a residual hepatitis, 10 patients (3 17.5%) showed a chronically persisting and 1 patient (= 1.75%) a chronically active hepatitis. The results presented are compared to those of other working teams of our country.