Potential transmission routes of Dichelobacter nodosus.

Locher, Iwan; Giger, Ladina; Frosth, Sara; Kuhnert, Peter; Steiner, Adrian (2018). Potential transmission routes of Dichelobacter nodosus. Veterinary microbiology, 218, pp. 20-24. Elsevier 10.1016/j.vetmic.2018.03.024

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Footrot caused by Dichelobacter nodosus is a highly contagious bacterial disease affecting the claw of sheep and the main cause of lameness in these animals. It is not only an economic burden but also a serious animal welfare issue. More information about the transmission of D. nodosus is needed for effective footrot control programs. We therefore determined the prevalence of D. nodosus in sheep presented at shows and markets where commingling of animals occurs. Furthermore, possible transmission vectors during foot trimming were investigated and trimming knife decontamination protocols evaluated. Sheep at six markets and four shows were sampled and tested for the presence of D. nodosus by real-time PCR. Different vectors, such as trimming knives were tested by real-time PCR and for viable D. nodosus by culture. The prevalence of virulent D. nodosus in sheep presented at shows and markets ranged from 1.7% to 100%. Regions with an ongoing control program showed significantly lower prevalence. After trimming, positive real-time PCR and culture results were obtained from the knives, the hands of the claw trimmers as well as removed claw horn material whereas boots were only positive by real-time PCR. In conclusion, markets and shows pose a risk for transmission of D. nodosus. The risk of transmission is particularly high during claw trimming and recommended measures to limit this risk include wiping the knife with a disinfection towel, wearing and changing gloves after every sheep, as well as proper disposal of trimmed and infectious horn.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Clinic for Ruminants
05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Institute of Veterinary Bacteriology

UniBE Contributor:

Locher, Iwan; Kuhnert, Peter and Steiner, Adrian

Subjects:

600 Technology > 630 Agriculture
600 Technology > 610 Medicine & health

ISSN:

0378-1135

Publisher:

Elsevier

Language:

English

Submitter:

Nathalie Viviane Zollinger

Date Deposited:

30 May 2018 14:50

Last Modified:

24 Oct 2019 13:39

Publisher DOI:

10.1016/j.vetmic.2018.03.024

PubMed ID:

29685216

Uncontrolled Keywords:

Claw trimming Culture Lameness Ovine footrot Real-time PCR

BORIS DOI:

10.7892/boris.116891

URI:

https://boris.unibe.ch/id/eprint/116891

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