Role of Anopheles Mosquitoes in Cache Valley Virus Lineage Displacement, New York, USA.
Emerg Infect Dis
; 28(2): 303-313, 2022 02.
Article
em En
| MEDLINE
| ID: mdl-35075998
ABSTRACT
Cache Valley virus (CVV) is a mosquitoborne virus that infects livestock and humans. We report results of surveillance for CVV in New York, USA, during 2000-2016; full-genome analysis of selected CVV isolates from sheep, horse, humans, and mosquitoes from New York and Canada; and phenotypic characterization of selected strains. We calculated infection rates by using the maximum-likelihood estimation method by year, region, month, and mosquito species. The highest maximum-likelihood estimations were for Anopheles spp. mosquitoes. Our phylogenetic analysis identified 2 lineages and found evidence of segment reassortment. Furthermore, our data suggest displacement of CVV lineage 1 by lineage 2 in New York and Canada. Finally, we showed increased vector competence of An. quadrimaculatus mosquitoes for lineage 2 strains of CVV compared with lineage 1 strains.
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Base de dados:
MEDLINE
Assunto principal:
Vírus Bunyamwera
/
Anopheles
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article