Partial genetic characterization of West Nile virus strains, New York State, 2000.
Emerg Infect Dis
; 7(4): 650-3, 2001.
Article
em En
| MEDLINE
| ID: mdl-11585527
ABSTRACT
We analyzed nucleotide sequences from the envelope gene of 11 West Nile (WN) virus strains collected in New York State during the 2000 transmission season to determine whether they differed genetically from each other and from the initial strain isolated in 1999. The complete envelope genes of these strains were amplified by reverse transcription-polymerase chain reaction. The resulting sequences were aligned, the genetic distances were computed, and a phylogenetic tree was constructed. Ten (0.7%) of 1,503 positions in the envelope gene were polymorphic in one or more sequences. The genetic distances were 0.003 or less. WN virus strains circulating in 2000 were homogeneous with respect to one another and to a strain isolated in 1999.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Febre do Nilo Ocidental
/
Vírus do Nilo Ocidental
/
Doenças das Aves
/
Reservatórios de Doenças
/
Culex
/
Insetos Vetores
Limite:
Animals
/
Humans
País/Região como assunto:
America do norte
Idioma:
En
Revista:
Emerg Infect Dis
Assunto da revista:
DOENCAS TRANSMISSIVEIS
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Estados Unidos