Decontamination methods for samples preserved in cetylpyridinium chloride and cultured on thin-layer agar.
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JournalThe International Journal of Tuberculosis and Lung Disease : the official journal of the International Union against Tuberculosis and Lung Disease
AbstractLong transportation times of samples to culture laboratories can lead to higher contamination rates and significant loss of viability, resulting in lower culture positivity rates. Thin-layer agar (TLA) is a sensitive culture method for the isolation of Mycobacterium tuberculosis that has been optimised with N-acetyl-L-cysteine-sodium hydroxide (NALC-NaOH) decontaminated samples. The combination of the TLA culture method and other decontamination procedures has not been extensively validated.
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