INFLAMMATORY conditions of the lower airway which are not due to infection occur commonly in the domestic horse. The terminology used to describe these conditions has ebbed in and out of favour over time. Currently the term equine asthma (EA) is recommended to describe horses with chronic respiratory signs, ranging in severity from mild to severe, that were previously referred to as inflammatory airway disease and recurrent airway obstruction respectively. Mild EA can affect horses of any age including young performance horses. Moderate to severe EA is typically associated with mature horses. Within the severe EA category, this may be housing associated or pasture associated.

How common is Equine Asthma?