Table 2. Histopathologic lesions in brain of zebu with spongiform encephalopathy and cow with bovine spongiform encephalopathy, Switzerland, 2004*.

Site	Cow	Zebu
Brainstem
Dorsal motor nucleus of vagus nerve	+	++
Nucleus of spinal tract of trigeminal nerve	++	+++
Nucleus of hypoglossal nerve	+	++
Reticular formation	++	++
Nucleus of solitary tract	++	+++
Vestibular nucli	++	+ to ++
Olivary nuclei	++	++
Cerebellar cortex	–	+
Midbrain (substantia grisea centralis)	+ to ++	++ to +++
Thalamus	++	++ to +++
Hippocampus	n.d.	+
Basal nuclei (pallidum)	+	+
Cerebral cortex	+	++

*–, absent; +, mild; ++, moderate; +++ severe; n.d., not done.