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Understanding contagious ovine digital dermatitis
  1. Jennifer Duncan,
  2. Dai Grove-White and
  3. Joe Angell


Contagious ovine digital dermatitis (CODD) is an emerging disease of sheep that was first reported in the UK in 1997. Since then it has become widespread in the national flock with an estimated 50 per cent of sheep farms affected. There have been several unconfirmed reports of the disease occurring in other parts of the world. Clinically, it presents as an initial proliferative or ulcerative lesion at the coronary band, progressing to separation and eventual avulsion of the hoof capsule. The disease causes severe lameness in sheep and can be difficult to manage. Until recently, there was only a small evidence base for vets and farmers to use in the control of CODD. This article summarises significant recent advances in the understanding of CODD and provides treatment and prevention strategies.

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