Structured interviews with 75 intravenous drug abusers (IVDAs) in Stockholm showed that, despite their having had several contacts with various medical institutions or prisons, none had been offered vaccination against hepatitis B virus (HBV) infection as recommended by the National Board of Health and Welfare. We conclude that, as failure to offer HBV vaccination to IVDAs contributes to be continued spread of HBV infection in this category, at admission all IVDAs should undergo serological HBV-testing and vaccination be offered to HBV-negatives.