Widell A, Hansson B G, Moestrup T, Serléus Z, Mathiesen L R, Johnsson T
Scand J Infect Dis. 1982;14(4):253-9. doi: 10.3109/inf.1982.14.issue-4.02.
985 episodes of hepatitis representing 98% of all acute hepatitis episodes found in a Swedish city during a 10-year period were analyzed for anti-hepatitis A IgM antibodies and hepatitis B surface antigen. Hepatitis A was diagnosed in 311 episodes (32%), hepatitis B in 494 (50%), simultaneous acute hepatitis A and B in 12 (1.2%), and 168 episodes (17%) were classified as hepatitis non-A, non-B. The majority of the hepatitis A cases were drug addicts (58%), and all were concentrated in 3 outbreaks of 1-2 years duration. 16% of all hepatitis A cases were probably imported. Hepatitis B cases decreased significantly (p less than 0.001) between the first and second half of the study period. 47% were drug addicts. Hepatitis non-A, non-B was also dominated by drug addicts (61%). Approximately 20% of the cases in all 3 types of hepatitis had no identifiable source.
对瑞典一个城市在10年期间发现的985例肝炎病例（占所有急性肝炎病例的98%）进行了抗甲型肝炎IgM抗体和乙型肝炎表面抗原分析。甲型肝炎确诊311例（32%），乙型肝炎确诊494例（50%），同时患急性甲型和乙型肝炎12例（1.2%），168例（17%）被归类为非甲非乙型肝炎。大多数甲型肝炎病例是吸毒者（58%），且全部集中在3次持续1至2年的疫情中。所有甲型肝炎病例中16%可能是输入性的。在研究期的前半期和后半期之间，乙型肝炎病例显著减少（p<0.001）。47%是吸毒者。非甲非乙型肝炎也以吸毒者为主（61%）。所有3种肝炎类型中约20%的病例没有可识别的感染源。
