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

Hui Z. Tu, Chiao Shan Chen, Tsi S. Huang, Wen Kuei Huang, Yao Shen Chen, Yung Ching Liu, Yusen Eason Lin

Research output: Contribution to journalArticle

4 Citations (Scopus)


A point-of-use 0.2-μm 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%).

Original languageEnglish
Pages (from-to)6296-6298
Number of pages3
JournalApplied and Environmental Microbiology
Issue number19
Publication statusPublished - Oct 2007
Externally publishedYes


ASJC Scopus subject areas

  • Biotechnology
  • Environmental Science(all)
  • Microbiology

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