Volume 9, Number 12—December 2003
Global Distribution of Rubella Virus Genotypes
|Genotype/cluster||Intragroup variability||Mean distance from
aRanges and mean genetic distances (% nucleotide difference) was determined from all pairwise combinations from viruses in these groups (Figure 1).
1Current address: Respiratory and Enteric Viruses Branch, Division of Viral and Rickettsial Diseases, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA.