Comparison of real-time, quantitative PCR with molecular beacons to nested PCR and culture methods for detection of Mycobacterium avium subsp. paratuberculosis in bovine fecal samples

Y. Fang, W. H. Wu, J. L. Pepper, J. L. Larsen, S. A.E. Marras, E. A. Nelson, W. B. Epperson, J. Christopher-Hennings

Research output: Contribution to journalArticlepeer-review

93 Scopus citations

Abstract

An automated PCR with fluorescent probes (molecular beacons) detected Mycobacterium avium subsp. paratuberculosis in bovine feces. When the PCR was compared with culture in testing 41 fecal samples, kappa scores of 0.94 to 0.96, a sensitivity of 93 to 96%, and a specificity of 92% were obtained. Results were quantitated by using a standard curve derived from a plasmid containing IS900. A minimum quantity of 1.7 × 10-4 pg of DNA, correlating to 1 to 8 CFU, was detected.

Original languageEnglish (US)
Pages (from-to)287-291
Number of pages5
JournalJournal of clinical microbiology
Volume40
Issue number1
DOIs
StatePublished - 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Microbiology (medical)

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