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Free Content Analysis of Mycobacterium tuberculosis isolates from treatment failure patients living in East Timor

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SETTING: In the first 2 years of the East Timor National TB Control Programme, 7960 new patients were treated (2RHZE/6HE) and 224 received a retreatment regimen (2SRHZE/1RHZE/4R3H3Z3E3).

OBJECTIVE: To determine the nature and extent of drug-resistant tuberculosis (TB) in treatment failure cases in East Timor.

METHODS: Sputum specimens from retreatment failure cases were processed and inoculated into a BACTEC MGIT960 tube and onto Löwenstein-Jensen media. Isolates were identified by Ziehl-Neelsen staining, hybridisation with nucleic acid probes and biochemical investigations. Susceptibility testing was performed using the radiometric proportion method. Pyrazinamide testing was performed using the Wayne indirect method.

RESULTS: Eighteen patients failed retreatment (0.7% of new cases) and 14 were available for analysis. Mycobacterium tuberculosis was cultured from all specimens, despite considerable transport delays. Nine (64.3%) had multiple drug resistance (MDR-TB) and four (28.6%) had other drug resistance. All MDR-TB isolates were susceptible to amikacin, capreomycin and ethionamide, with most also susceptible to ciprofloxacin and para-aminosalicylic acid (PAS).

CONCLUSIONS: An excellent TB control programme has been established in East Timor. If funds are available, East Timor provides an ideal setting for a small-scale DOTS-Plus programme to treat prevalent cases of MDR-TB, and this study could inform the second-line drug regimen.
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Keywords: East Timor; VNTR; multidrug resistance; treatment failure; tuberculosis

Document Type: Regular Paper

Affiliations: 1: Institute of Medical & Veterinary Science, Adelaide, South Australia, Australia 2: National TB Control Programme, Dili, East Timor; and Caritas Dili, Dili, East Timor

Publication date: 2005-01-01

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  • The International Journal of Tuberculosis and Lung Disease publishes articles on all aspects of lung health, including public health-related issues such as training programmes, cost-benefit analysis, legislation, epidemiology, intervention studies and health systems research. The IJTLD is dedicated to the continuing education of physicians and health personnel and the dissemination of information on tuberculosis and lung health world-wide.

    Certain IJTLD articles are selected for translation into French, Spanish, Chinese or Russian. They are available on the Union website

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