BOVINE ROTAVIRUS-993 83 SHOWS A 3RD SUBTYPE OF AVIAN VP7 PROTEIN/

VP7 genes of rotavirus (RV) 993/83 isolated from a German calf with di arrhea and of RV PO-13 isolated from a Japanese pigeon were sequenced, Alignment of the deduced VP7 amino acid sequence showed 98.8% sequenc e identity, while only 70% and 84% identity was seen with VP7 from chi cken RV Ch-2 and turkey RV Ty-1, respectively, Over the antigenic regi ons A, B, and C mammalian RV 993/83 showed more aa identify with mamma lian G3 RVs than with chicken RV Ch-2, which could explain the strong one-way cross-neutralization observed between RV 993/83 and 03 RVs, De spite marked VP7 sequence diversity avian RVs could not be differentia ted into distinct G types.