Bluetongue: Clinical signs
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A culicoides biting midge Photo credit: Crown Copyright |
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Nasal discharge, salivation and oedema of the muzzle Photo credit: Crown Copyright |
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Hyperaenia of the oral cavity and oedema of the mucous membranes Photo credit: Crown Copyright |
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Hemorrhage at the base of the pulmonary artery Photo credit: Crown Copyright |
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Blood fed, adult female Culicoides sonorensis (approximately
2 mm in length) Source: Institute for Animal Health |
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Adult Culicoides imicola (approximately 1.5 mm in
length) Source: Institute for Animal Health |
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First clinical signs of bluetongue: rise in temperature, followed
by hyperaemia of oral cavity and mucus membranes leading to oedema
of the lips, tongue and face Source: Institute for Animal Health |
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The feet of sheep with bluetongue are often affected with coronitis
and laminitis causing lameness Source: Institute for Animal Health |
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Blood fed female Culicoides obsoletus (approximately
1.5 mm in length) Source: Institute for Animal Health |
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Hemorrhages on the lips and palate. Source: Mariano Domingo, Dept of Pathology, Autonomous University of Barcelona |
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Hemorrhage of the pulmonary artery Source: Mariano Domingo, Dept of Pathology, Autonomous University of Barcelona |
Information on Crown Copyright and the use of Crown Copyright material is available on Defra website. The Institute for Animal Health can be contacted via their website.
Further information
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Photos of clinical signs
(263 KB) from the Institute of Animal Health Pirbright .
Page last modified: 2 November, 2007 17:00