atypical interstitial pneumonia

The name given to a number of diseases which are closely related clinically but whose etiology is incompletely understood. Clinically there is acute or chronic respiratory distress, gross abnormality of lung sounds, and a complete absence of toxemia and other systemic signs that are characteristic of most other pneumonias of adult cattle. All forms of the disease are unresponsive to treatment. The disease appears to have a number of causes. See also tryptophan, 3-methylindole. Called also acute respiratory distress syndrome, bovine pulmonary emphysema, enzootic bovine adenomatosis, pulmonary adenomatosis, mold hypersensitivity, fog fever, panters.