Equine Adenovirus
Not high on the rule out list because it rarely causes problems in normal horses. But, in what animal does it cause severe systemic disease?
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Some Arabians carry a genetic defect, which when present in the homozygous state, causes Severe Combined Immunodeficiency Disease (SCID). These animals are incapable of mounting an immune response. Affected foals usually die of a pneumonia due to equine adenovirus, a virus which is harmless in immunocompetent animals. This is a lung from a SCID foal. |
