Venezuelan Equine Encephalitis and 2 Human Deaths, Peru
Stalin Vilcarromero, Patricia V. Aguilar, Eric S. Halsey, Alberto Laguna-Torres, Hugo Razuri, Juan Perez, Yadira Valderrama, Eduardo Gotuzzo, Luis Suárez, Manuel Céspedes, and Tadeusz J. Kochel
Author affiliations: Naval Medical Research Center Detachment, Lima, Peru (S. Vilcarromero, P.V. Aguilar, E.S. Halsey, V.A. Laguna-Torres, H. Razuri, J. Perez, T.J. Kochel); Universidad Peruana Cayetano Heredia, Lima (S. Vilcarromero, E. Gotuzzo); Hospital de Apoyo Yurimaguas, Loreto, Peru (Y. Valderrama); Dirección General de Epidemiología, Lima (L. Suárez); Instituto Nacional de Salud, Lima (M. Céspedes)
Figure 2. Neighbor-joining phylogenetic tree of Venezuelan equine encephalitis virus (VEEV) complex based on partial sequence of the PE2 segment (nucleotide positions ≈8385–9190 of the VEEV genome). The tree was rooted by using an outgroup of 3 major lineages of Eastern equine encephalitis virus (EEEV). The strain isolated from a 7-year-old girl who died from acute VEEV infection in Peru, June 21, 2006, is in boldface. Viruses are labeled by code designation, abbreviated location name, year of isolation (last 2 digits of year only), and GenBank accession numbers of the corresponding sequences. PA, Panama; GU, Guatemala; MX, Mexico; FG, French Guiana; VE, Venezuela; BR, Brazil; AG, Argentina; PE, Peru; FL, Florida. Numbers indicate bootstrap values. Scale bar indicates nucleotide substitutions per site.
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