Equis ISSN 2398-2977

Equine adenovirus

Contributor(s): Susan Dawson, Melissa Kennedy

Introduction

Classification

Taxonomy

  • Family:Adenoviridae.
  • Subfamily:Mastadenovirus.

Etymology

  • Gk:adeno- gland.

Active Forms

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Clinical Effects

Epidemiology

Habitat

  • Equine respiratory tract.

Pathological effects

  • Immunocompetent foals show subclinical or mild infections.
  • Fatal pneumonia may occur in immunocompromised foals   Equine adenovirus infection (EAI)  .
  • Clinical signs: coughing, dyspnea, conjunctivitis   Conjunctivitis: overview   and pyrexia.
  • Causes persistent neutropenia and lymphopenia.
  • Intranuclear inclusion bodies may be found in respiratory and salivary gland epithelium.
  • Case fatality may approach 100%.

Other Host Effects

  • Prevalence of infection high in many equine populations; usually subclinical.
  • Prevalence 60-75%; up to 90% in Arabian horses   Arab  .

Control

Control via animal

  • Supportive therapy if required.

Control via chemotherapies

  • Antibiotic cover for foals with pneumonia.

Vaccination

  • None available for horses.

Diagnosis

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Further Reading


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