Novel molecular transport medium used in combination with Xpert MTB/RIF ultra provides rapid detection of Mycobacterium bovis in African buffaloes

Abstract Mycobacterium bovis is the causative agent of bovine tuberculosis (bTB) in wildlife. Confirmation of M. bovis infection relies on mycobacterial culture, which is time-consuming. Collection and transportation of infectious material also pose a human health risk. PrimeStore Molecular Transpor...

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Autores principales: Charlene Clarke, Katrin Smith, Samantha J. Goldswain, Christopher Helm, David V. Cooper, Tanya J. Kerr, Léanie Kleynhans, Paul D. van Helden, Robin M. Warren, Michele A. Miller, Wynand J. Goosen
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Publicado: Nature Portfolio 2021
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spelling oai:doaj.org-article:6e278a5b15124511bbb3bddac57174b52021-12-02T14:25:21ZNovel molecular transport medium used in combination with Xpert MTB/RIF ultra provides rapid detection of Mycobacterium bovis in African buffaloes10.1038/s41598-021-86682-52045-2322https://doaj.org/article/6e278a5b15124511bbb3bddac57174b52021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86682-5https://doaj.org/toc/2045-2322Abstract Mycobacterium bovis is the causative agent of bovine tuberculosis (bTB) in wildlife. Confirmation of M. bovis infection relies on mycobacterial culture, which is time-consuming. Collection and transportation of infectious material also pose a human health risk. PrimeStore Molecular Transport Medium (MTM) has been shown to effectively inactivate infectious organisms, making it a safe method for handling infectious samples. This study investigated an in-field sampling technique for rapid, safe detection of M. bovis in buffalo tissues. Potentially infected tissues from bTB test-positive buffaloes were swabbed at post-mortem examination and stored in PrimeStore MTM at ambient temperature until Xpert MTB/RIF Ultra testing was performed. Additionally, tissue samples were frozen and transported before homogenisation for culture and Ultra testing. Oral swabs were collected from M. bovis-unexposed buffaloes as a negative control cohort. Mycobacterium tuberculosis complex (MTBC) DNA was detected by Ultra in 13/16 tissue swabs and 9/16 matched tissue homogenates from culture-confirmed M. bovis-positive buffalo tissues. MTBC DNA was not detected in swabs from M. bovis-unexposed animals, showing the potentially high specificity of Ultra with PrimeStore swabs. PrimeStore MTM sample processing, in combination with the Ultra assay, has the potential to provide a safe, rapid post-mortem screening test for M. bovis in buffaloes.Charlene ClarkeKatrin SmithSamantha J. GoldswainChristopher HelmDavid V. CooperTanya J. KerrLéanie KleynhansPaul D. van HeldenRobin M. WarrenMichele A. MillerWynand J. GoosenNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-6 (2021)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Charlene Clarke
Katrin Smith
Samantha J. Goldswain
Christopher Helm
David V. Cooper
Tanya J. Kerr
Léanie Kleynhans
Paul D. van Helden
Robin M. Warren
Michele A. Miller
Wynand J. Goosen
Novel molecular transport medium used in combination with Xpert MTB/RIF ultra provides rapid detection of Mycobacterium bovis in African buffaloes
description Abstract Mycobacterium bovis is the causative agent of bovine tuberculosis (bTB) in wildlife. Confirmation of M. bovis infection relies on mycobacterial culture, which is time-consuming. Collection and transportation of infectious material also pose a human health risk. PrimeStore Molecular Transport Medium (MTM) has been shown to effectively inactivate infectious organisms, making it a safe method for handling infectious samples. This study investigated an in-field sampling technique for rapid, safe detection of M. bovis in buffalo tissues. Potentially infected tissues from bTB test-positive buffaloes were swabbed at post-mortem examination and stored in PrimeStore MTM at ambient temperature until Xpert MTB/RIF Ultra testing was performed. Additionally, tissue samples were frozen and transported before homogenisation for culture and Ultra testing. Oral swabs were collected from M. bovis-unexposed buffaloes as a negative control cohort. Mycobacterium tuberculosis complex (MTBC) DNA was detected by Ultra in 13/16 tissue swabs and 9/16 matched tissue homogenates from culture-confirmed M. bovis-positive buffalo tissues. MTBC DNA was not detected in swabs from M. bovis-unexposed animals, showing the potentially high specificity of Ultra with PrimeStore swabs. PrimeStore MTM sample processing, in combination with the Ultra assay, has the potential to provide a safe, rapid post-mortem screening test for M. bovis in buffaloes.
format article
author Charlene Clarke
Katrin Smith
Samantha J. Goldswain
Christopher Helm
David V. Cooper
Tanya J. Kerr
Léanie Kleynhans
Paul D. van Helden
Robin M. Warren
Michele A. Miller
Wynand J. Goosen
author_facet Charlene Clarke
Katrin Smith
Samantha J. Goldswain
Christopher Helm
David V. Cooper
Tanya J. Kerr
Léanie Kleynhans
Paul D. van Helden
Robin M. Warren
Michele A. Miller
Wynand J. Goosen
author_sort Charlene Clarke
title Novel molecular transport medium used in combination with Xpert MTB/RIF ultra provides rapid detection of Mycobacterium bovis in African buffaloes
title_short Novel molecular transport medium used in combination with Xpert MTB/RIF ultra provides rapid detection of Mycobacterium bovis in African buffaloes
title_full Novel molecular transport medium used in combination with Xpert MTB/RIF ultra provides rapid detection of Mycobacterium bovis in African buffaloes
title_fullStr Novel molecular transport medium used in combination with Xpert MTB/RIF ultra provides rapid detection of Mycobacterium bovis in African buffaloes
title_full_unstemmed Novel molecular transport medium used in combination with Xpert MTB/RIF ultra provides rapid detection of Mycobacterium bovis in African buffaloes
title_sort novel molecular transport medium used in combination with xpert mtb/rif ultra provides rapid detection of mycobacterium bovis in african buffaloes
publisher Nature Portfolio
publishDate 2021
url https://doaj.org/article/6e278a5b15124511bbb3bddac57174b5
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