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. 2011 Jun;17(6):1049-52.
doi: 10.3201/eid/1706.101886.

Reassortant Pandemic (H1N1) 2009 virus in pigs, United Kingdom

Wendy A Howard  1 , Steve C Essen, Benjamin W Strugnell, Christine Russell, Laura Barass, Scott M Reid, Ian H Brown
Affiliations

Reassortant Pandemic (H1N1) 2009 virus in pigs, United Kingdom

Wendy A Howard et al. Emerg Infect Dis. 2011 Jun.

Abstract

Surveillance for influenza virus in pigs in the United Kingdom during spring 2010 detected a novel reassortant influenza virus. This virus had genes encoding internal proteins from pandemic (H1N1) 2009 virus and hemagglutinin and neuraminidase genes from swine influenza virus (H1N2). Our results demonstrate processes contributing to influenza virus heterogeneity.

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Figures

Figure
Figure
Phylogenetic analysis of influenza A virus hemagglutinin (A) and neuraminidase (B) genes. Trees were constructed by using the neighbor-joining method. Solid diamonds indicate A/swine/England/1382/10 genes from virus isolated in this study, and open diamonds indicate genes from other viruses reported in this study. Percentage of replicate trees in which the associated taxa clustered together in the bootstrap test (1,000 replicates) is shown next to the branches for values >70% (11). Evolutionary distances were computed by using the Tamura-Nei method (12). Phylogenetic analyses were conducted by using MEGA4 (13). Scale bars indicate nucleotide substitutions per site.
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