Incidence of tuberculosis in a community of Senegalese immigrants in Northern Italy
OBJECTIVE: To measure the incidence of tuberculosis in a retrospective cohort of Senegalese immigrants in a closed community.
DESIGN: During 1991, 721 of 794 (91%) community residents were actively screened using the tuberculin skin test and chest X-ray. In 1995 the out-patient clinical charts and the tuberculosis notification registers were reviewed to determine tuberculosis incidence.
RESULTS AND CONCLUSION: A total of 328 subjects (45.4% of those screened) was retrospectively followed for a cumulative period of 10147 months. Ten cases of active tuberculosis were detected. The annual incidence rate for tuberculosis was 11.8/1000, compared to 15.1/100000 in the general population. Tuberculosis incidence was similar in subjects with a positive (12.3/1000), compared to a negative baseline tuberculin test (12.5/1000). Tuberculosis incidence is very high, and recent infections might account for a substantial proportion of cases among immigrants living in closed communities.
Document Type: Regular Paper
Publication date: 1999-01-01
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