Equis ISSN 2398-2977

CNS: myeloencephalopathy - EHV

Synonym(s): EHV-1, myeloencephalopathy, herpes myelitis

Contributor(s): Frank Andrews, Rachael Conwell, Cody Coyne, Robert J MacKay, Michael Porter, Vetstream Ltd

Introduction

  • Occasional outbreaks or sporadic cases of neurologic syndromes associated with equine herpesvirus (EHV) infection.
  • Cause: EHV-1   Equine herpesvirus  .
  • Signs: fever, depression, acute/subacute onset of ataxia and paresis, urinary incontinence   Incontinence  , abortion   Abortion: EHV-1  , neonatal sepsis and respiratory disease   Respiratory: EHV infection  .
  • Diagnosis: RT-PCR (whole blood or nasal secretions), CSF analysis, virus isolation and paired serology (virus neutralizing antibody detection).
  • Treatment: supportive; good nursing essential; corticosteroids may be beneficial in early stages; +/- antiviral agents.
  • Prognosis: dependent on severity of clinical signs - most horses recover within days to months with good nursing; severely affected/recumbent animals may die (10% mortality rate reported in clincially affected horses) or require euthanasia   Euthanasia  .
  • See also:
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Pathogenesis

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Diagnosis

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Treatment

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Prevention

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Outcomes

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Further Reading

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