Figure 2.

Histopathological brain lesions from case 5: (A) Brain cerebral cortex sample of case 5, a juvenile male striped dolphin presenting 7/7 of the evaluated brain lesions. Severe non-suppurative meningitis is present. Original magnification ×4; haematoxylin and eosin staining. Inset: Detail of perivascular cuffing and non-suppurative meningitis. Original magnification ×10; haematoxylin and eosin staining. (B) Brain cerebral cortex sample of case 5, a juvenile male striped dolphin presenting 7/7 of the evaluated brain lesions. Suffusive haemorrhages, malacia and perivascular cuffing are present. Original magnification ×10; haematoxylin and eosin staining. Inset: numerous amphophilic intranuclear inclusion bodies were observed within the neurons and glial cells (arrowheads). Detail of perivascular cuffing (asterisk). Original magnification ×40; haematoxylin and eosin staining. (C) Higher magnification of the basophilic intranuclear inclusion bodies (arrowheads). Original magnification ×60; haematoxylin and eosin staining.