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Hematoxylin and eosin staining. A) Interdigitate area of the placentome of an uninfected sheep with no evident lesion. B) Foci of necrosis and scant inflammatory infiltration at the interdigitated area of the placentome of an infected sheep. C) Foetal brain from an uninfected sheep with no evident lesion. D) Glial foci with central necrosis at the foetal brain from an infected sheep. Bar: 200 μm.
