the negative titers in the hemagglutination tests , the presence of feulgen-positive intranuclear inclusions in the cells of the granular layer of the cerebellum and the fibroblast culture , and the presence of viral particles with an icosahedral-herpetic morphology and a diameter of 100-170 nm all indicate that the etiology of this outbreak may be related to the encephalitis caused by herpesvirus , at present diagnosed only in iraq and some african countries .
C0007634
cells
C0016030
fibroblast