Document 0298 DOCN M9590298 TI Nosocomial tuberculosis outbreak in HIV infected patients at St. Vincent's Hospital, Sydney. TB Working Group. DT 9509 AU Couldwell D; Dore G; HIV Medicine Unit, St. Vincent's Hospital, Sydney. SO Annu Conf Australas Soc HIV Med. 1994 Nov 3-6;6:209 (unnumbered abstract). Unique Identifier : AIDSLINE ASHM6/95291801 AB OBJECTIVE: To investigate a possible outbreak of Mycobacterium tuberculosis infection in a HIV outpatient treatment facility. METHODS: Following the diagnosis of active pulmonary tuberculosis in a HIV-infected patient receiving outpatient intravenous therapy for CMV pneumonitis, 94 patients potentially exposed in the treatment room were followed up with 3 monthly screening chest radiographs and where possible, sputum examination. RESULTS: Through the initial screening undertaken no patients who were potentially exposed had radiological evidence of active pulmonary tuberculosis. Amongst those patients who also had sputum examinations, none were positive on microscopy or culture for M. tuberculosis. However, 3 of these patients developed active pulmonary tuberculosis between 8 and 10 weeks following the diagnosis of the index case. No further cases amongst the potentially exposed cohort of patients has been diagnosed after 12 months. M. tuberculosis isolates from the index case and the three other cases were found to be identical strains by DNA typing. CONCLUSION: Despite low prevalence of M. tuberculosis infection amongst HIV-infected patients in Australia, there is a clear risk of transmission in hospital settings. Considering there are a wide range of potential pulmonary pathogens and respiratory disease processes in HIV-infected patients, vigilance is required to detect M. tuberculosis cases at the earliest possible time. DE AIDS-Related Opportunistic Infections/*EPIDEMIOLOGY/TRANSMISSION Cohort Studies *Cross Infection/*EPIDEMIOLOGY/TRANSMISSION *Disease Outbreaks Follow-Up Studies Human Mass Screening New South Wales Risk Factors Tuberculosis, Pulmonary/*EPIDEMIOLOGY/TRANSMISSION MEETING ABSTRACT SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).