Equine Internal Medicine Q&A 16
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A nine-week-old Arabian foal is presented with a history of recurrent respiratory infections characterized by nasal discharge, cough, dyspnoea and pyrexia. The foal was normal at birth, but suffered its first bout of respiratory disease at six weeks of age. Over the previous week it had also developed widespread scaling and alopecic skin lesions, from which Dermatophilus congolensis had been cultured. The foal has also had intermittent diarrhoea. Haematological evaluation revealed a severe lymphopenia (lymphocyte count 0.2x109/l).
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What is the most likely diagnosis? | Combined immunodeficiency syndrome (CID).
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How could you confirm this? |
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What is the aetiology of this disease? |
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What are the usual causes of the respiratory infections in this disease? | Pneumonia caused by adenovirus, Pneumocystis carinii and a variety of bacteria are commonly involved.
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How would you treat this foal? | There is no recommended treatment for CID. Bone marrow transplantation has been performed successfully in one affected foal.
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