*Exception: immune-compromised Arab foals (showing both B/T cell deficiencies), causing necrotising [[Respiratory Viral Infections - Pathology#Equine adenovirus|bronchiolitis]][[Category:Adenoviridae]][[Category:Horse]] | *Exception: immune-compromised Arab foals (showing both B/T cell deficiencies), causing necrotising [[Respiratory Viral Infections - Pathology#Equine adenovirus|bronchiolitis]][[Category:Adenoviridae]][[Category:Horse]] |