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  • Title: [Tuberculosis in Bergen 1996].
    Author: Nordtvedt S, Gulsvik A, Hexeberg A, Hofstad T, Caugant DA.
    Journal: Tidsskr Nor Laegeforen; 1999 Jan 10; 119(1):30-3. PubMed ID: 10025201.
    Abstract:
    In 1996, 30 patients with tuberculosis were reported from Haukeland University Hospital to the Norwegian Tuberculosis Registry. Culturing proved 63% with mycobacterium tuberculosis (M. tuberculosis). 13 of the patients, eight adults and five children, all natives, were identified as close relatives or friends (cluster). M. tuberculosis with identical restriction fragment length polymorphism pattern (RFLP) were found in all the adults, indicating that they carried the same bacteria strain. We have compared the clinical findings, bacteriology and treatment among the adults in the cluster with other patients with pulmonary tuberculosis identified the same year at the Department of Thoracic Medicine at Haukeland University Hospital. The patients in the cluster were young adults without any previous chest X-ray changes. The other natives with tuberculosis were older, two showing chest X-ray changes indicating former tuberculosis. No difference was seen in sex, BCG status, tuberculin sensitivity, symptoms, physical findings or chest X-ray between the two groups. In the cluster, four patients proved sputum smear positive, as compared to four in the other group. Spread of infection and new cases of M. tuberculosis with identical RFLP were found only in the cluster. Since RFLP analyses of M. tuberculosis started in Norway in 1993, this cluster in Bergen is the largest cluster observed with identical RFLP pattern.
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