Abstract
Characteristics of CPE produced by porcine enteroviruses (PEV) were examined by Immunoperoxidase (IP) staining method. Viral antigens were detected earlier than appearance of CPE. Distinctive characteristics of the three CPE types were clearly showed by the method. In cross reactions by IP staining, the titers of the staining were high (1:6,400 to 1:25,600), even though neutralizing titers of PEV with CPE II or III were low (1:200 to 1:400). The very close relationship was detected between PEV with the same CPE type, but the very low relationships were detected between PEV with the different CPE type. The relationships in CPE I group were various. The results by IP staining were more relative to CPE type than the serotype. Thus, IP staining is one method to classify PEV clearly.
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