Survival of contagious ovine digital dermatitis (CODD)-associated treponemes on disposable gloves after handling CODD-Affected feet

Angell, J. W. and Clegg, S. R. and Grove-White, D. H. and Blowey, R. W. and Carter, S. D. and Duncan, J. S. and Evans, N. J. (2017) Survival of contagious ovine digital dermatitis (CODD)-associated treponemes on disposable gloves after handling CODD-Affected feet. Veterinary Record, 181 (4). p. 89. ISSN 0042-4900

Full content URL: https://doi.org/10.1136/vr.104228

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Abstract

Both contagious ovine digital dermatitis (CODD) and bovine digital dermatitis (BDD) are causes of infectious lameness in sheep and cattle, respectively, and are strongly associated with the presence of specific treponemes, with three different cultivable phylogroups commonly isolated: Treponema medium, Treponema phagedenis and Treponema pedis. The aim of this study was to investigate the potential to transmit CODD-Associated Treponema species via gloves used when handling visibly clinically affected animals. The feet of sheep with and without CODD were handled as part of routine examination with gloved hands. The gloves were then swabbed to detect the presence of treponemes immediately after handling. Detection methods included culture and isolation techniques together with DNA detection by PCR. In addition, the duration of survival in air was determined as well as the efficacy of common disinfectants to remove treponemes from gloves. In this study, we demonstrate that CODD-Associated treponemes can survive on gloves used to handle the feet of CODD-Affected sheep but may be removed effectively using common disinfectants. These data provide evidence of a potential route of transmission and identify a practical method to reduce this risk.

Additional Information:cited By 1
Keywords:enrofloxacin, rifampicin, Article, bacterial survival, bacterial transmission, bacterial viability, bacterium culture, case control study, controlled study, digital dermatitis, DNA determination, DNA extraction, DNA isolation, fetal calf serum, Fisher exact test, foot disease, glove, microscopy, nonhuman, polymerase chain reaction, risk reduction, sheep, Treponema, Treponema medium, Treponema pedis, Treponema phagedenis
Subjects:D Veterinary Sciences, Agriculture and related subjects > D420 Livestock
D Veterinary Sciences, Agriculture and related subjects > D330 Veterinary Public Health
D Veterinary Sciences, Agriculture and related subjects > D711 Agricultural Microbiology
Divisions:College of Science > School of Life Sciences
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ID Code:29854
Deposited On:06 Dec 2017 11:54

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