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Free Content Evaluation of thin-layer agar 7H11 for the isolation of Mycobacterium tuberculosis complex [Short communication]

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We evaluated the thin-layer agar (TLA) method for the recovery of Mycobacterium tuberculosis complex and compared the results with the BACTEC Mycobacteria Growth Indicator Tube (MGIT) 960 system. A total of 53 mycobacterial isolates were isolated on both media. The recovery rates of mycobacteria on TLA and BACTEC MGIT 960 system were respectively 90.6% and 96.2%. Mean time to detection of mycobacteria on TLA was 12.5 compared to 11.2 days on BACTEC MGIT 960. TLA is a simple technique and can be used as an alternative to the Löwenstein-Jensen medium and BACTEC MGIT 960 for the isolation of mycobacteria in resource-poor settings.
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Keywords: BACTEC; Mycobacterium tuberculosis complex; culture; tuberculosis

Document Type: Short Communication

Affiliations: 1: Department of Microbiology, Armed Forces Institute of Pathology, Rawalpindi, Pakistan 2: Institute of Tropical Medicine, Mycobacteriology Unit, Antwerp, Belgium

Publication date: 2010-10-01

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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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