OBJECTIVE To assess the prevalence of tuberculous infection and disease in recent economic immigrants in Barcelona. SUBJECTS AND METHOD Examination and testing of immigrants. Tuberculin tests (TTs) were given and the presence of scars from tuberculosis vaccinations were noted. Thresholds of 5 and 15 mm were established for positivity in unvaccinated and vaccinated individuals, respectively. ...

OBJECTIVE To investigate the factors influencing the performance and cost-efficacy of periodic rounds of active case finding (ACF) for TB. METHODS A mathematical model of TB dynamics and periodic ACF (PACF) in the HIV era, simplified by assuming constant prevalence of latent TB infection, is analyzed for features that control intervention outcome, measured as cases averted and cases found. Ex...