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Appl Environ Microbiol. 2007 Oct;73(19):6296-8. Epub 2007 Aug 3.

Use of a disposable water filter for prevention of false-positive results due to nontuberculosis mycobacteria in a clinical laboratory performing routine acid-fast staining for tuberculosis.

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1
Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.

Abstract

A point-of-use 0.2-microm filter was evaluated for elimination of nontuberculosis mycobacteria in laboratory water to reduce false-positive acid-fast bacillus staining results. Use of the point-of-use filter can significantly reduce the false-positive rate to 1.2% compared to samples treated with tap water (10.7%) and deionized water (8.7%).

PMID:
17675421
PMCID:
PMC2074995
DOI:
10.1128/AEM.00325-07
[Indexed for MEDLINE]
Free PMC Article
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