Equine Viral Arteritis

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  • Causative agent: equine arterivirus (EVA)
  • Rhinitis, peripheral oedema, bronchitis/bronchiolitis, conjunctivitis, periorbital oedema
  • Replicates in macrophages and endothelial cells
  • Disseminates via the circulatory system causing necrotising arteritis
  • Interstitial pneumonia
  • Transmitted by respiratory and venereal routes through direct contact with infected horse or its secretions
  • Stallion are a reservoir of infection as they are chronic shedders