West Nile and Usutu viruses in mosquitoes in Spain, 2008-2009 - PubMed (original) (raw)

West Nile and Usutu viruses in mosquitoes in Spain, 2008-2009

Ana Vázquez et al. Am J Trop Med Hyg. 2011 Jul.

Abstract

West Nile virus lineage 1 (similar to the strains obtained from golden eagles in Spain, 2007) and Usutu virus (similar to the strains obtained from Culex pipiens in Spain, 2006) were detected in pools from Culex perexiguus collected in southern Spain in 2008 and 2009, respectively. This is the first detection and isolation of West Nile virus lineage 1 from mosquitoes in Spain.

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Figures

Figure 1.

Figure 1.

Phylogenetic tree of 50 flaviviruses sequences (including two sequences obtained in this study: HU6365/08 Spain and HU10279/09 Spain). The phylogenetic analyses were carried out by the neighbor-joining method and kimura-2 model on Mega4. The percentage of successful bootstrap replicates (N = 1,000) is indicated at nodes. Japanese encephalitis virus (JEV) is used as an outgroup. The accession numbers of the sequences used in this phylogenetic study are indicated in the phylogenetic tree.

Figure 2.

Figure 2.

Comparison at the nucleotide level of sequenced fragment of the Spanish USUV/09 and WNV/08 among related USUV and WNV. Dot indicates coincident nucleotide.

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