Emerging Infectious Disease ISSN: 1080-6059

Measles Virus Strain Diversity, Nigeria and Democratic Republic of the Congo

Jacques R. Kremer, Edith Nkwembe, Akeeb O. Bola Oyefolu, Sheilagh B. Smit, Elisabeth Pukuta, Sunday A. Omilabu, Festus D. Adu, Jean-Jacques Muyembe Tamfum, and Claude P. Muller

Author affiliations: Centre de Recherche Publique–Santé/Laboratoire National de Santé, Luxembourg, Luxembourg (J.R. Kremer, C.P. Muller); Institut National de Recherche Biomédicale, Kinshasa, Democratic Republic of the Congo (E. Nkwembe, E. Pukuta, J.-J.M. Tamfum); Lagos State University, Lagos, Nigeria (A.O.B. Oyefolu); National Institute for Communicable Diseases, Johannesburg, South Africa (S.B. Smit); University of Lagos, Lagos (S.A. Omilabu); University of Ibadan, Ibadan, Nigeria (F.D. Adu)

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Figure 4

Phylogenetic tree showing a comparison of genotype B3 strains of measles virus (MV) from Nigeria 1997–1998 and 2003–2005 (boldface) and representative genotype B3 strains from other countries in Africa available in GenBank (accession numbers in brackets) and World Health Organization (WHO) reference strains of genotypes B3.1, B3.2, and B2 (italics). Naming of MV strains and tree calculation were performed on the basis of the 450-nt region that codes for the C-terminus of the MV N protein by usin

Figure 4. Phylogenetic tree showing a comparison of genotype B3 strains of measles virus (MV) from Nigeria 1997–1998 and 2003–2005 (boldface) and representative genotype B3 strains from other countries in Africa available in GenBank (accession numbers in brackets) and World Health Organization (WHO) reference strains of genotypes B3.1, B3.2, and B2 (italics). Naming of MV strains and tree calculation were performed on the basis of the 450-nt region that codes for the C-terminus of the MV N protein by using MEGA4 software (24) and the neighbor-joining method (Kimura 2-parameter, 1,000 bootstraps). Scale bar indicates nucleotide substitutions per site.

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