Foreign background and older age of children were associated with infection in Swedish tuberculosis contacts

摘要: AIM We present our results using interferon-gamma release assays in any child <18 years or tuberculin skin tests Bacille Calmette-Guerin unvaccinated children for tuberculosis contact investigation Stockholm, Sweden. METHODS During 2000-2019, we investigated 892 with a median age of seven years. explored associations between TB infection and characteristics such as closeness to contact, age, sex, BCG status foreign origin. RESULTS The overall rates were 10.2% (n = 91) disease 1.1% (n = 10). In addition infectiousness index case background, male sex increasing independently associated infection. foreign-born children, the 18.7% 3.9%, respectively. 18/46 (39%) infected baseline negative test supported diagnosis recent CONCLUSION Foreign older significant proportion previous made likely.