Published in Medical Letter on the CDC and FDA, April 2nd, 2006
According to a study from Switzerland, "Switzerland is a country with a significant proportion of tuberculosis (TB) among immigrants. To assess the factors associated with positive tuberculin skin tests (TST) among children, they were examined during a health check-up or during TB contact tracing, notably the influence of BCG-vaccination (Bacille Calmette-Guerin) and history of TB contact. Age, sex, history of TB contact, BCG vaccination status, country of origin, and birth outside Switzerland...
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