Phylogenetic analysis of hemagglutinin, neuraminidase, and nucleoprotein genes of H9N2 avian influenza viruses isolated in Israel during the 2000-2005 epizootic.
Comp Immunol Microbiol Infect Dis
; 32(3): 221-38, 2009 May.
Article
em En
| MEDLINE
| ID: mdl-18249445
ABSTRACT
The first two isolates of H9N2 influenza virus in Israel were collected from turkey and chicken hosts in May 2000. The actual epizootic of the H9N2 virus started in December 2001, after a 1.5-year period of silence, and still continues. A total of more than 500 isolations from turkeys and chickens were registered during the outbreaks. The present study has revealed some genetic peculiarities among the local isolates, namely all the isolates belong to the same G1-like phylogenetic lineage, within which they form a single group, which, in turn, is divided into three subgroups in the cases of the HA and NP genes, and two subgroups in the case of the NA gene. The results present a basis for suggesting the existence of two parallel evolutionary trends originating from the same local "prototype" isolate.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Proteínas do Core Viral
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Proteínas de Ligação a RNA
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Glicoproteínas de Hemaglutininação de Vírus da Influenza
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Vírus da Influenza A Subtipo H9N2
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Influenza Aviária
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Neuraminidase
Limite:
Animals
País como assunto:
Asia
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article