Immunoperoxidase evaluation of pneumonic lesions induced by Pasteurella multocida in calves.

摘要: Calves inoculated with Pasteurella haemolytica serovar 1 developed lesions of coagulation necrosis in the lungs that were sharply demarcated by leukocytes. The P antigen was detected area histologic sections, using an immunoperoxidase technique. In central necrotic tissue, bacterial diffusely presented alveolar wall, fibrin, serous exudate, and degenerated leukocyte. also found some groups degenerating leukocytes around tissue. colonies among these had strong specific reactions against haemolytica. observed cytoplasm macrophages alveoli lesion. These findings confirmed is important lesion calves pneumonia caused