Changes

===Pathology===

===Pathology===

On post-mortem examination, lesions characteristic of pneumonia and enteritis may be present. Thymic atrophy is sometimes seen, particularly in may young dogs.

On post-mortem examination, the thymus is often found to be greatly reduced in size and gelatinous in young dogs. There is patchy consolidation of the lungs due to interstitial pneumonia, and signs of catarrhal enteritis may be present. Mucopurlent discharges are commonly seen from the eyed and nose and bronchopneumonis is sometimes present. Skin pustules and hyperkeratosis of the footpads and nose are seen occasionally.

Microscopic lesions are widespread in organs and the brain. Characteristic viral inclusion bodies are commonly found in brain, lung, stomach, and urinary bladder.

Microscopic lesions are widespread in organs and the brain. Characteristic viral inclusion bodies are commonly found in brain, lung, stomach, and urinary bladder.