The number of surveyed patients was 35. All of them (except one who only received a radiation) received a chemotherapy by reason of different kinds of cancer diseases. If necessary, some of them obtained additional therapy forms.

Seven of them underwent a hepatitis B infection once. Two are still suffering from an active hepatitis B infection.

21 patients never suffered from any hepatitis infection. Unfortunately, the hepatitis laboratory values of five patients were not determined. A hepatitis C infection could not be proved in 30 cases