title: Nomenclature for describing the genetic characteristics of wild-type measles viruses (update). Part I.
mesh_terms: D004279:DNA, Viral / Q000235:genetics; D005838:Genotype; D017408:Guidelines as Topic; D008459:Measles virus / Q000235:genetics*; D017422:Sequence Analysis, DNA; D009626:Terminology as Topic; D014944:World Health Organization
chemical_list: D004279:DNA, Viral