Histological Changes in the Central Nervous System of Swine Inoculated With Some Enteroviruses

The histopathological changes of the central nervous system in experimental infection of colostrum-deprived piglets with porcine enteroviruses, isolated in Sweden, are described. There was no marked difference in the type of nonpurulent encephalomyelitis caused by a Teschen strain and other strains of porcine enterovirus. A slight affection of the central nervous system may be present without causing clinical symptoms.