Reliability of cord formation in BACTEC media for presumptive identification of mycobacteria.


Journal Article

We evaluated cord formation in BACTEC media as a criterion for presumptive identification of Mycobacterium tuberculosis complex. Auramine-rhodamine smears from 673 radiometrically positive BACTEC vials were examined. The presence of cording had a sensitivity, a specificity, and positive and negative predictive values of 22.9, 98.5, 82.9, and 80.3%, respectively. Before cord formation is used to report presumptive identification of M. tuberculosis complex, workers should determine the reliability of this finding in their own laboratories.

Full Text

Duke Authors

Cited Authors

  • Morris, AJ; Reller, LB

Published Date

  • September 1, 1993

Published In

Volume / Issue

  • 31 / 9

Start / End Page

  • 2533 - 2534

PubMed ID

  • 8408584

Pubmed Central ID

  • 8408584

International Standard Serial Number (ISSN)

  • 0095-1137


  • eng

Conference Location

  • United States