By analysing the nucleotide sequence of the SH genes of five mumps vir
us strains derived from the clinical specimens collected during the 19
95/96 mumps epidemic in China a new genotype has been established The
circulating viruses showed divergence ranging from 0.8-4.5% at the nuc
leotide level and 3.5-12.3% at the amino acid level, In addition, a mo
re rational approach has been taken in proposing genotype groupings to
MuV strains. (C) 1997 Elsevier Science Ltd. All rights reserved.