Medicine:Louping ill

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Short description: Animal disease
Louping ill
Other namesOvine encephalomyelitis, infectious encephalomyelitis of sheep, trembling-ill
Nonsuppurative encephalitis in goat affected by louping ill.jpg
Nonsuppurative encephalitis in goat affected by louping ill. A) Cerebellum with necrosis of Purkinje cells. Hematoxylin and eosin (H&E) stain; scale bar = 100 µm. Inset: necrosis of Purkinje cells. H&E stain; scale bar = 20 µm. B) Midbrain. Area of neurophagia (arrow) surrounded by microglial cells. Necrosis of neurons can be also seen. H&E stain; scale bar = 50 µm. C) Lymphoid perivascular cuff in midbrain. H&E stain; scale bar = 50 µm. D) Spinal cord, gray matter. Focal microgliosis (crosses) and neurons undergoing necrosis (arrows). H&E stain; scale bar = 50 µm.
SpecialtyVeterinary medicine

Louping-ill (/ˈlpɪŋɪl/) is an acute viral disease primarily of sheep that is characterized by a biphasic fever, depression, ataxia, muscular incoordination, tremors, posterior paralysis, coma, and death. Louping-ill is a tick-transmitted disease whose occurrence is closely related to the distribution of the primary vector, the sheep tick Ixodes ricinus. It also causes disease in red grouse, and can affect humans. The name 'louping-ill' is derived from an old Scottish word describing the effect of the disease in sheep whereby they 'loup' or spring into the air.[1]

Cause

Louping ill virus
Virus classification e
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Kitrinoviricota
Class: Flasuviricetes
Order: Amarillovirales
Family: Flaviviridae
Genus: Flavivirus
Species:
Louping ill virus

Louping ill is caused by RNA virus called Louping ill virus. Louping ill virus belongs to genus Flavivirus,[2] family Flaviviridae.

There are four subtypes: British, Irish, Spanish and Turkish.[citation needed]

Prevention

According to a ProMED article,[3] disease in sheep has been controlled in the UK by a vaccine (ATCvet code: QI04AA01), originally developed by Scotland's Moredun Research Institute by Prof John Russell Greig.[4] In 2009, however, a shortage of vaccine combined with an increase in the number of ticks found in sheep pasture areas cause an increased risk of this disease.[citation needed]

References

External links

Classification

Wikidata ☰ {{{from}}} entry