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ID#:12973
Description:From the “Illustrated Manual for the Recognition and Diagnosis of Certain Animal Diseases”, published in 1982, by the Mexico-United States Commission for the Prevention of Foot and Mouth Disease this image depicts a close intraoral view of a sheep’s mouth revealing the presence of intense congestion and swelling of the animal’s lips and gums (gingivae), as well as sloughing of the oral mucosa on the dental pad, found to be due to a bluetongue (BT) infection. This virus is a Reoviridae family member, and a member of the genus, Orbivirus.
“BT is an infectious, but non-contagious viral disease of ruminants transmitted by insects, and characterized by congestion, edema and hemorrhage in an affected animal. In sheep, symptoms include fever, emaciation, oral lesions, lameness, and a substantial death rate, frequently with the heaviest losses in lambs. Cattle usually have a milder disease with a low mortality rate; sometimes the disease in cattle may be diagnosed only by inoculating sheep with bovine materials. In Africa, BT has been confused with foot-and-mouth disease.”
High Resolution: Click here for hi-resolution image (18.35 MB)
Content Providers(s):CDC/ Dr. Jerry J. Callis, PIADC/Dr. Brian W.J. Mahy, CDC
Creation Date:1982
Photo Credit:
Links:Plum Island Animal Disease Center (PIADC) - United States Department of Agriculture (USDA) – Agricultural Research Service (ARS) – U.S. Department of Homeland Security
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Copyright Restrictions:None - This image is in the public domain and thus free of any copyright restrictions. As a matter of courtesy we request that the content provider be credited and notified in any public or private usage of this image.

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