Incidence of Hepatitis B Among Injection Drug Users
"In the period 1995–2008, a considerable increase in hepatitis B among drug users nationwide was reported to MSIS. In 2011, 18 of a total of 56 reported cases of acute hepatitis B involved injecting drug users. During the period 1995–2011, the total number of reported cases of acute hepatitis B infection among injecting drug users was 1,969. Hepatitis B vaccination has been offered to injecting drug users free of charge since the mid-1980s."
Norwegian Institute for Alcohol and Drug Research, "The Drug Situation in Norway 2012: annual report to the European Monitoring Centre for Drugs and Drug Addiction (EMCDDA)," (Oslo, Norway: December 2012), p. 33.