Fig. 2.

Microscopic examination of animals with contagious caprine pleuropneumonia (CCPP), using Hematoxylin and Eosin staining. A) Inflammatory infiltration (neutrophil granulocyte) in the alveoli (arrows), serofibrinous exudate (asteriks) in the alveoli, hyperemia (arrowheads), peracute-acute course (Bar = 200 µm). B) Inflammatory infiltration (neutrophil granulocyte) in the alveoli (arrow), thrombus mass (arrowhead), inflammatory infiltration (neutrophil granulocyte) and serofibrinous fluid (asteriks) in the interlobular septum, peracute-acute course (Bar = 100 µm). C) Mononuclear cell infiltration in the interaralveolar septum (arrows), peribronchial lymphocyte infiltrates (asteriks), subacute-chronic course (Bar = 200 µm). D) Alveolar macrophage and mononuclear cell infiltration (asteriks), subacute-chronic course (Bar = 50.00 µm).