Nucleotide sequences of the VP4 and VP7 genes of a Chinese lamb rotavirus: evidence for a new P type in a G10 type virus.

The VP7 and VP4 genes of a group A rotavirus (Lp14) isolated from a lamb with diarrhea in Qinhai province, China, in 1981 were reverse transcribed, amplified by PCR, cloned, and sequenced. The virus was found to possess a VP7 gene, classifying it as a G10 type, and a VP4 gene which showed only limited homology with any other known VP4 gene, suggesting its classification as a new P type and providing further evidence for the vast diversity of group A rotaviruses.