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Equine Asthma

Equine asthma (also known as heaves or dust allergy and formerly known as COPD or RAO) is one of the most common causes of coughing and nasal discharge in stabled horses.

Equine asthma (also known as heaves or dust allergy and formerly known as COPD or RAO) is one of the most common causes of coughing and nasal discharge in stabled horses. Equine asthma occurs when the horse’s lungs over-react to inhaling allergens in the environment. It has many similarities to human asthma and symptoms can range from an occasional cough or under performance to severe wheezing and respiratory distress. It can affect any age of horse, but often starts in middle aged horses.



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