Equine Viral Arteritis

• 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