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

Journal of clinical microbiology ·Vol. 31 ·No. 9 ·1993-09-00 ·Pages 2533-4

Morris AJ, Reller LB

Abstract

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.

MeSH Terms

Cord Factors/biosynthesis Culture Media Humans Mycobacterium tuberculosis/growth & development,isolation & purification,metabolism

Chemicals

Cord Factors Culture Media

Authors & Affiliations

2 authors, click to expand affiliations / ORCID

Morris A J

Department of Clinical Microbiology, Duke University Medical Center, Durham, North Carolina 27710.

Reller L B

References (4)

4 references, click to expand

Evaluation of the BACTEC radiometric method for recovery of mycobacteria and drug susceptibility testing of Mycobacterium tuberculosis from acid-fast smear-positive specimens.
J Clin Microbiol. 1983 Sep;18(3):689-96 PMID: 6195181
Cord formation in BACTEC 7H12 medium for rapid, presumptive identification of Mycobacterium tuberculosis complex.
J Clin Microbiol. 1990 Jun;28(6):1451-3 PMID: 2116448
Identification of mycobacteria from culture by using the Gen-Probe Rapid Diagnostic System for Mycobacterium avium complex and Mycobacterium tuberculosis complex.
J Clin Microbiol. 1988 Oct;26(10):2120-3 PMID: 3141459
Evaluation of the p-nitro-alpha-acetylamino-beta-hydroxypropiophenone differential test for identification of Mycobacterium tuberculosis complex.
J Clin Microbiol. 1985 Apr;21(4):634-5 PMID: 3921563

Article Info

Journal

Journal of clinical microbiology

Abbr.

J Clin Microbiol

ISSN

0095-1137

DOI

10.1128/jcm.31.9.2533-2534.1993

Published

1993-09-00

Pages

2533-4

Language

English

Region

United States

NLM ID

7505564

PMCID

PMC265804

Subset

External Links

PubMed source DOI: 10.1128/jcm.31.9.2533-2534.1993 PMC Full Text View journal details

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

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