Paralysis of Horses Associated with Equine Herpesvirus 1 Infection
Abstract
SUMMARY: Paralysis in association with epizootics of abortion and respiratory disease due to equine herpesvirus 1 infection (equine rhinopneumonitis) has been reported in Europe and the United States. Of 7 pregnant mares inoculated with equine herpesvirus 1, 6 became paralyzed approximately 7 days after inoculation. Clinical signs ranged from mild ataxia followed by recovery, to severe paralysis and enforced recumbency. Five mares were euthanatized or died, and were necropsied. Vascular-oriented inflammation was the principal lesion, and this was especially prominent in the nervous system, where degenerative changes were observed. Virus was not isolated from any of the mares but was isolated from 2 of the fetuses.
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Lack of nutrients and oxygen and elevated levels of inflammatory cytokines cause neurons to degenerate, eventually leading to equine herpes myeloencephalopathy.
“The lack of nutrients and oxygen and the elevated levels of inflammatory cytokines cause neurons to degenerate, eventually leading to equine herpes myeloencephalopathy (EHM) (Jackson and Kendrick, 1971; Wilson, 1997).”
From The Pathogenesis and Immune Evasive Mechanisms of Equine Herpesvirus Type 1 (2021) · cites this paper as Jackson and Kendrick, 1971
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“Equine herpesvirus-1 myeloencephalopathy has an impact on equine welfare and the potential for causing catastrophic losses in the economy of equine-related businesses because of characteristically high morbidity and case fatality rates; refractoriness to prevention by vaccination; and the ability to affect horses of a…”
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- Authors
- Jackson, T., & Kendrick, J. W.
- Affiliations
- University of California, Davis (US)
- Venue
- Journal of the American Veterinary Medical Association
- Published
- 1971-04-15
- Volume
- 158
- Issue
- 8
- Pages
- 1351-1357
- ISSN
- 0003-1488 (ISSN-L)
- OpenAlex
- W2417334744
- Cited by
- 65
- References
- 0
- Citations by year
- 2024: 1 · 2021: 2 · 2020: 1 · 2019: 2 · 2017: 1 · 2016: 1 · 2014: 1 · 2013: 2
- FWCI
- 1.49
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of the American Veterinary Medical Association (publishedVersion)
- PubMed (publishedVersion)
- PubMed
- Topics
- Health Sciences › Medicine › Epidemiology › Herpesvirus Infections and Treatments
- Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Virus Infections Studies
- Health Sciences › Veterinary › Equine › Veterinary Equine Medical Research
- Keywords
- equine herpesvirus 1, equine rhinopneumonitis, paralysis, horses, pregnant mares, abortion (veterinary), ataxia, neurodegeneration, vascular inflammation, fetal infection, epizootic
- MeSH terms
- Abortion, Veterinary, Animals, Central Nervous System Diseases, Female, Fetal Diseases, Herpesviridae, Herpesviridae Infections, Horse Diseases, Horses, Neutralization Tests, Paralysis, Pregnancy, Pregnancy, Animal
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