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Impact of bluetongue virus infection on the international movement and trade of ruminants

N. James MacLachlan BVSc, PhD, DACVP1 and Bennie I. Osburn DVM, PhD, DACVP2
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  • 1 Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, CA 95616.
  • | 2 Department of Pathology, Microbiology, and Immunology, School of Veterinary Medicine, University of California, Davis, CA 95616.

Bluetongue is a noncontagious disease of some species of wild and domestic ruminants that develops as a result of insect-transmitted BTV infection.1–7 The pathogenesis of BTV infection of cattle and sheep is similar,4,7 but bluetongue typically affects only sheep, whereas cattle and a variety of other ruminants are amplifying reservoir hosts of the virus that rarely manifest obvious signs of disease. In sheep, bluetongue is characterized by hemorrhage and ulceration of the mucous membranes of the upper portion of the gastrointestinal tract, coronitis, laminitis, and facial edema and is associated with high rates of morbidity and

Contributor Notes

Address correspondence to Dr. MacLachlan.