Estudi de contactes en una pacient amb tuberculosi pulmonar i bacil·loscòpia de les secrecions respiratòries negativa
Objective. To describe the study of contacts in a patient with pulmonary TBC and negative smears. Methods. On the basis of a TB index case with smear-negative of respiratory secretions the study of contacts was conducted according to the strategy of the concentric circles. The tuberculin test was recommended and the prevalence of TB infection was calculated. Also we described the detection of cases of disease and infection. Results. The prevalence of infection was 36.6% (26/72): in the family 25% (2/8); in the office 60% (3/5) and a lounge of multiple uses 35.6% (21/59). In the second tuberculin skin the prevalence was 11.8% (4/34). The global prevalence of infection was 41.7% (30/72). Also we studied two children 16 months old that they would have presented an exposition to the index case in the office for 1 to 2 hours a week and we detected a new case of tuberculosis. Conclusions. The study reinforces the priority of the study of contacts among children under five years of age. The smear is an indicator of possible transmission, but it does not have an absolute value. It is also necessary to note the symptoms and lesions observed in other tests
Tuberculosis; Contact study; Epidemiology
Castejón-Mariscal-de-Gante I, Alsedà-Graells M, Bach-Foradada P, Vallmanya-Cucurull T, Falguera-Sacrest M, Godoy-Garcia P. Estudi de contactes en una pacient amb tuberculosi pulmonar i bacil·loscòpia de les secrecions respiratòries negativa. Butll Epidemiol Catalunya. 2015;36(01):1-5.
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