31 Italian HIV-infected patients with newly diagnosed tuberculosis (TB) were reviewed to verify the effectiveness of the most common antituberculosis drugs. The patients were mostly intravenous drug addicts (90%), and 14 (45%) had recently been in prison. 5 patients (16%) had pulmonary TB, 15 (48%) had both pulmonary and extrapulmonary involvement, and 11 (30%) had extrapulmonary disease alone. 6 patients received the association of HRZ, and a 4-drug association including ethambutol was given to an additional 7 patients. The remaining 18 patients were administered the association of HRE. Response to therapy was good in 13 patients (42%), and lacking or delayed in 18 patients (58%). Treatment failure was partly related to the increased occurrence in our area of Mycobacterium tuberculosis strains resistant to the first-line anti-tuberculosis drugs. These observations, along with the need of a faster response to therapy than that currently obtained for TB in AIDS and in view of epidemiological effects, should prompt the definition of alternative therapeutic and prophylactic regimens.
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