| Literature DB >> 30636533 |
Simone Scherrer1,2, Patricia Landolt1,2, Ute Friedel1,2, Roger Stephan1,2.
Abstract
The most commonly used tools for tuberculosis testing in cattle, the tuberculin skin test and the interferon-γ release assay, detect immune reactivity to various antigens of Mycobacterium bovis, including ESAT-6 and CFP-10. However, some non-tuberculous mycobacteria (NTM) can also harbor the cfp-10 and/or esat-6 genes, which can lead to false-positive results. We tested 77 NTM isolates belonging to 22 different species from lymph nodes of healthy slaughtered cattle for the occurrence of cfp-10 and esat-6. Most isolates did not harbor cfp-10 and esat-6. However, M. gordonae, 'M. lymphaticum', M. kansasii, and M. persicum were cfp-10 positive. The esat-6 gene was found in M. kansasii and M. persicum. Protein expression of cfp-10 and esat-6 could be detected for M. kansasii and M. persicum. An effective tuberculosis control program based on interferon-γ release assays and tuberculin skin testing is dependent on further monitoring and characterization of NTM in a cattle population.Entities:
Keywords: Bovine tuberculosis diagnosis interference; lymph nodes; non-tuberculous mycobacteria
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Year: 2019 PMID： 30636533 PMCID： PMC6838824 DOI： 10.1177/1040638718824074
Source DB: PubMed Journal: J Vet Diagn Invest ISSN： 1040-6387 Impact factor: 1.279