Hemagglutinin activity of two distinct genogroups of feline and canine rotavirus strains

Genomes of hemagglutinating strains of feline and canine rotaviruses, were much more closely related to each other than to non-hemagglutinating strains. The Cat2 feline rotavirus appears to derive from reassortment between hemagglutinating and non-hemagglutinating strains.