Review of the temporal and geographical distribution of measles virus genotypes 1951 – 2004 Although measles virus (MV) is serologically monotypic, the genetic characterization of wild-type viruses has identified eight clades (A – H), which have been divided into 22 genotypes and one proposed genotype. Clades B, C, D, G and H each contain multiple … Continue reading Measles Virus Genotypes