Emerging Infectious Disease ISSN: 1080-6059

Molecular Epidemiology of Measles Viruses in the United States, 1997–2001

Paul A. Rota*

, Stephanie L. Liffick*, Jennifer S. Rota*, Russell S. Katz*, Susan Redd*, Mark Papania*, and William J. Bellini*

Author affiliations: *Centers for Disease Control and Prevention, Atlanta, Georgia, USA;

Figure

Genetic relationship between measles viruses isolated in the United States in 1997–2001 and the reference strains established by the World Health Organization (WHO) (20). Phylogenetic tree was based on the nucleotide sequences coding for the COOH-terminus of the nucleoprotein. Strain abbreviations are given in Table 1. Reference strains as established by WHO are shown in bold and designated by their genotype name. The length of the horizontal scale bar represents one nucleotide change.

Figure. Genetic relationship between measles viruses isolated in the United States in 1997–2001 and the reference strains established by the World Health Organization (WHO) (20). Phylogenetic tree was based on the nucleotide sequences coding for the COOH-terminus of the nucleoprotein. Strain abbreviations are given in Table 1. Reference strains as established by WHO are shown in bold and designated by their genotype name. The length of the horizontal scale bar represents one nucleotide change.

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