Association of Tuberculin Sensitivity in Dutch Adults with History of Travel to Areas of with a High Incidence of Tuberculosis
International travel may be a source of introduction of tuberculosis into low-incidence countries. We assessed whether, in The Netherlands, sensitivity to tuberculin was associated with a history of travel to countries with a high incidence of tuberculosis. Immunocompetent adults with no history of Bacille Calmette-Guérin vaccination or sensitivity to tuberculin were skin-tested simultaneously with 1-tuberculin unit (TU) purified protein derivative (PPD) of Mycobacterium tuberculosis and 1-TU sensitin of Mycobacterium scrofulaceum . Tuberculin sensitivity was defined as a reaction to PPD of ⩾1... Mehr ...
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Dokumenttyp: | TEXT |
Erscheinungsdatum: | 2001 |
Verlag/Hrsg.: |
Oxford University Press
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Schlagwörter: | Major Articles |
Sprache: | Englisch |
Permalink: | https://search.fid-benelux.de/Record/base-27023510 |
Datenquelle: | BASE; Originalkatalog |
Powered By: | BASE |
Link(s) : | http://cid.oxfordjournals.org/cgi/content/short/33/3/300 |
International travel may be a source of introduction of tuberculosis into low-incidence countries. We assessed whether, in The Netherlands, sensitivity to tuberculin was associated with a history of travel to countries with a high incidence of tuberculosis. Immunocompetent adults with no history of Bacille Calmette-Guérin vaccination or sensitivity to tuberculin were skin-tested simultaneously with 1-tuberculin unit (TU) purified protein derivative (PPD) of Mycobacterium tuberculosis and 1-TU sensitin of Mycobacterium scrofulaceum . Tuberculin sensitivity was defined as a reaction to PPD of ⩾10 mm that was ⩾3 mm larger than the reaction to M. scrofulaceum sensitin. Tuberculin sensitivity was found in 7 (0.7%) of 1014 participants (95% confidence interval [CI], 0.3%–1.4%); it was independently associated with a cumulative history of >3-months' travel to high-incidence areas (odds ratio, 6.0; 95% CI, 1.2–31.2; P = .016) and increased in association with total duration of travel ( P = .02). Travel to high-incidence areas increases the risk of tuberculin sensitivity and, consequently, of latent tuberculous infection. In countries with a low incidence of tuberculosis, cases of infection acquired during travel may account for a substantial proportion of new infections in the resident population.