Swine vesicular disease (SVD) is an acute, contagious viral disease of swine caused by swine vesicular disease virus, an Enterovirus.[1] It is characterized by fever and vesicles with subsequent ulcers in the mouth and on the snout, feet, and teats. The pathogen is relatively resistant to heat, and can persist for a long time in salted, dried, and smoked meat products.[2] Swine vesicular disease does not cause economically important disease, but is important due to its similarity to foot-and-mouth disease.[3]
| Swine vesicular disease virus | |
|---|---|
| Virus classification | |
| (unranked): | Virus |
| Realm: | Riboviria |
| Kingdom: | Orthornavirae |
| Phylum: | Pisuviricota |
| Class: | Pisoniviricetes |
| Order: | Picornavirales |
| Family: | Picornaviridae |
| Genus: | Enterovirus |
| Species: | |
| Strain: | Swine vesicular disease virus |
Swine vesicular disease is most commonly brought into a herd by the introduction of a subclinically infected pig.[2] The disease can be transmitted in feed containing infected meat scraps,[4] or by direct contact with infected feces (such as in an improperly cleaned truck).
After an incubation period up to 7 days, the signs associated with swine vesicular disease occur.[5] The first sign is a transient mild fever.[5] Other signs include:
- Vesicles in the mouth and on the snout and feet
- Lameness and an unsteady gait, shivering, and jerking–type leg movements
- Ruptured vesicles can cause ulcers on limbs and feet, and foot pads may be loosened.
Young animals are more severely affected. Recovery often occurs within a week. Mortality is negligible.
Swine vesicular disease has the same clinical signs as foot-and-mouth disease, and can only be diagnosed by laboratory testing.[4]
Swine vesicular disease was first identified in Italy in 1966.[6] In 1971, an outbreak occurred in Hong Kong,[6] and the disease was subsequently found other countries in Europe and Asia.[4]
References[edit]
- ^ "Genus: Enterovirus" (html). International Committee on Taxonomy of Viruses. Retrieved 21 August 2019.
Swine vesicular disease virus is a variant of coxsackievirus B5 and causes a vesicular disease in pigs clinically indistinguishable from foot-and-mouth disease (genus Aphthovirus) and vesicular disease in pigs caused by Seneca Valley virus (genus Senecavirus).
- ^ a b "Technical disease card: Swine vesicular disease" (PDF). World Organisation for Animal Health. 2013. Retrieved 2017-07-16.
- ^ Maclachlan, NJ; Dubovi, EJ, eds. (2010). "Swine vesicular disease virus". Fenner's Veterinary Virology (5th ed.). Academic Press. pp. 489–90. ISBN 9780128011706.
- ^ a b c Murphy, FA; Gibbs, PJ; Horzinek, MC; Studdert, SJ (1999). "Swine vesicular disease". Veterinary virology (3rd ed.). San Diego: Academic Press. p. 523. ISBN 9780080552033.
- ^ a b Quinn, PJ; Markey, BK; Leonard, FC; Hartigan, P; Fanning, S; Fitzpatrick, ES (2011). Veterinary Microbiology and Microbial Disease (2nd ed.). Hoboken: John Wiley & Sons. p. 685. ISBN 9781118251164.
- ^ a b Mahy, Brian W.J. (2009). "Swine vesicular disease virus (SVDV)". The dictionary of virology (4th ed.). Amsterdam: Elsevier/Academic Press. p. 459. ISBN 9780080920368.
https://en.wikipedia.org/wiki/Swine_vesicular_disease
https://en.wikipedia.org/wiki/Swine_vesicular_disease
https://en.wikipedia.org/wiki/Blain_(animal_disease)
https://en.wikipedia.org/wiki/Foot-and-mouth_disease
https://en.wikipedia.org/wiki/Foot-and-mouth_disease_virus
https://en.wikipedia.org/wiki/Hand,_foot,_and_mouth_disease
https://en.wikipedia.org/wiki/Biosafety_level
https://en.wikipedia.org/wiki/Neurotropic_virus
https://en.wikipedia.org/wiki/Respiratory_syncytial_virus
https://en.wikipedia.org/wiki/Select_agent
https://en.wikipedia.org/wiki/Candidate_phyla_radiation
https://en.wikipedia.org/wiki/Bacteroidetes
https://en.wikipedia.org/wiki/Acidobacteria
https://en.wikipedia.org/wiki/Nitrospirae
https://en.wikipedia.org/wiki/Comammox
Above. LeToya - She Ain't Got...
No comments:
Post a Comment