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Phylogenetic analysis of surface proteins of novel H1N1 virus isolated from 2009 pandemic.


ABSTRACT: Swine Influenza Virus (H1N1) is a known causative agent of swine flu. Transmission of Swine Influenza Virus form pig to human is not a common event and may not always cause human influenza. The 2009 outbreak by subtype H1N1 in humans is due to transfer of Swine Influenza Virus from pig to human. Thus to analyze the origin of this novel virus we compared two surface proteins (HA and NA) with influenza viruses of swine, avian and humans isolates recovered from 1918 to 2008 outbreaks. Phylogenetic analyses of hemagglutinin gene from 2009 pandemic found to be clustered with swine influenza virus (H1N2) circulated in U.S.A during the 1999-2004 outbreaks. Whereas, neuraminidase gene was clustered with H1N1 strains isolated from Europe and Asia during 1992-2007 outbreaks. This study concludes that the new H1N1 strain appeared in 2009 outbreak with high pathogenicity to human was originated as result of re-assortment (exchange of gene). Moreover, our data also suggest that the virus will remain sensitive to the pre-existing therapeutic strategies.

SUBMITTER: Danishuddin M 

PROVIDER: S-EPMC2828893 | biostudies-other | 2009 Sep

REPOSITORIES: biostudies-other

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Phylogenetic analysis of surface proteins of novel H1N1 virus isolated from 2009 pandemic.

Danishuddin Mohd M   Khan Shahper N SN   Khan Asad U AU  

Bioinformation 20090930 3


Swine Influenza Virus (H1N1) is a known causative agent of swine flu. Transmission of Swine Influenza Virus form pig to human is not a common event and may not always cause human influenza. The 2009 outbreak by subtype H1N1 in humans is due to transfer of Swine Influenza Virus from pig to human. Thus to analyze the origin of this novel virus we compared two surface proteins (HA and NA) with influenza viruses of swine, avian and humans isolates recovered from 1918 to 2008 outbreaks. Phylogenetic  ...[more]

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