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Article

Positive selection on hemagglutinin and neuraminidase genes of H1N1 influenza viruses

21 Apr 2011

Abstract excerpt

BACKGROUND: Since its emergence in March 2009, the pandemic 2009 H1N1 influenza A virus has posed a serious threat to public health. To trace the evolutionary path of these new pathogens, we performed a selection-pressure analysis of a large number of hemagglutinin (HA) and neuraminidase (NA) gene sequences of H1N1 influenza viruses from different hosts. RESULTS: Phylogenetic analysis revealed that both HA and NA...

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PMID: 21507270
DOI: 10.1186/1743-422x-8-183

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