Isolation of cytophatic strains of rotavirus from pigs.

Twenty-two rotavirus isolates were recovered from piglets suffering from diarrhea. The isolates readily propagated in MA-104 cell cultures where they induced typical cytopathic effects (CPE) and possessed the physicochemicals properties of the members of rotavirus genus, Family Reoviridae. The electron microscopy study, conducted in MA-104 infected cells, revealed virus particles which possessed the peculiar morphology of rotavirus. The isolates were neutralized by a reference porcine rotavirus antiserum: all were devoid of hemagglutinating activity for red cells of swine, cattle, sheep, rabbit, chicken and guinea pig.