title: [Imported diseases].
abstract: In Denmark, about one third of notifiable diseases are imported, but these have had only a limited spread within the Danish community. For example, imported strains of Mycobacterium tuberculosis remain confined to the immigrant population, and the high prevalence of chronic hepatitis B among certain groups of immigrants has not resulted in a general increase in the incidence of hepatitis B. Exceptions are imported cases of hepatitis A in children, which have resulted in outbreaks in the indigenous Danish population, and the import of drug-resistant bacteria, which often pose a serious challenge to hospital hygiene.
authors.affiliation: Statens Serum Institut, Epidemiologisk Afdeling, og Københavns Universitet, København S. krm@ssi.dk
authors.forename: Kåre
authors.initials: K
authors.lastname: Mølbak
authors.forename: Annette Hartvig
authors.initials: AH
authors.lastname: Christiansen
authors.forename: Ib C
authors.initials: IC
authors.lastname: Bygbjerg
mesh_terms: D000328:Adult; D002648:Child; D003140:Communicable Disease Control; D003718:Denmark / Q000453:epidemiology / Q000208:ethnology; D003967:Diarrhea / Q000453:epidemiology / Q000208:ethnology / Q000382:microbiology; D018563:Disease Notification; D004196:Disease Outbreaks / Q000517:prevention & control; D004352:Drug Resistance, Microbial; D004641:Emigration and Immigration; D005759:Gastroenteritis / Q000453:epidemiology / Q000208:ethnology / Q000382:microbiology; D015658:HIV Infections / Q000453:epidemiology / Q000208:ethnology; D006525:Hepatitis, Viral, Human / Q000453:epidemiology / Q000208:ethnology; D006801:Humans; D015994:Incidence; D015995:Prevalence; D014195:Travel; D014376:Tuberculosis / Q000453:epidemiology / Q000208:ethnology