classical swine fever

classical swine fever

n.

A highly infectious, often fatal viral disease of swine, characterized by fever, loss of appetite, and diarrhea. It occurs worldwide. Also called hog cholera.

classical, classic

the first recognized form of the item; serving as a standard model or guide. See also classical conditioning, east coast fever.

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classical conditioning

see conditioning.

classical pathway

one of the two pathways of complement activation, initiated by antigen-antibody complexes and involving C1, C2 and C4. It leads to activation of C3 and the terminal pathway. See also alternate complement pathway.

classical swine fever

now the universally accepted name for hog cholera and different from African swine fever (ASF). A highly infectious disease of pigs caused by a pestivirus and characterized in its classical form by high fever, lassitude, purple discoloration of abdominal skin, conjunctivitis and nervous signs including circling, incoordination, tremor and convulsions. Most affected pigs die at 5 to 7 days with a characteristic petechiation under the kidney capsule—turkey egg kidney. There is a second form, characterized by nervous signs and caused by a strain of virus of lower virulence. Other syndromes caused by low virulence strains are reproductive inefficiency and congenital defects including myotonia congenita. Also known as congenital trembles.

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swine

pertaining to or emanating from swine (pigs, hogs). See also porcine.

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African swine fever

see african swine fever.

classical swine fever

see classical swine fever.

swine dysentery

a contagious disease of young pigs caused by Brachyspirahyodysenteriae, characterized by severe porridge-like diarrhea, sometimes dysentery, dehydration and heavy morbidity and mortality rates.

swine erysipelas

see erysipelas.

swine fever

see classical swine fever; African swine fever.

swine influenza

a highly contagious upper respiratory disease of pigs caused by swine influenza virus and a concurrent infection with Haemophilus influenzae. Clinical signs include fever, stiffness, recumbency, labored breathing, sneezing, paroxysmal cough and nasal and ocular discharge. Called also ferkelgrippe.

swine paramyxovirus

see paramyxovirus encephalomyelitis.

swine paratyphoid

see salmonellosis.

swine plague

fibrinous pneumonia caused by Pasteurella multocida. May occur in outbreak form with a number of litters of young pigs being affected within a short time.

swine vesicular disease

is a highly infectious disease of pigs caused by an enterovirus related to human coxsackie B5 virus. It is clinically indistinguishable from foot-and-mouth disease in pigs. Vesicular lesions occur at the coronet, causing severe lameness, and in the mouth and on the snout.

vesicular exanthema of swine

see vesicular exanthema of swine.