Cattle Health: Chronic BVD Disease
10/06/2009 02:59PM
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The chronic form of BVD is associated with prolonged BVD virus infections and very poor or absent antibody titer to the BVD virus. The clinical signs associated with the chronic disease are similar but more extensive and severe than the clinical signs associated with the acute BVD disease.
The chronically diseased animals exhibit depression; a lack of appetite; a lingering diarrhea; a yellowish discharge from the eyes and nose; crusted muzzle; erosions of the mouth; bald spots due to loss of hair; and lameness due to inflammation of the hair line, sensitive laminae, and the tissue between the claws of the feet. The chronically infected animals usually appear unthrifty and starving. Death occurs more frequently in chronic BVD infections than in acute BVD infections.
Source: Florida Ag Extension