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Article

Genetic Analysis of West Nile Virus Isolates from an Outbreak in Idaho, United States, 2006–2007

1
Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD 20892, USA
2
Idaho Bureau of Laboratories, Boise, ID 83712, USA
3
Creative Testing Solutions, Tempe, AZ 85282, USA
4
American Red Cross, Gaithersburg, MD 20877, USA
*
Authors to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2013, 10(9), 4486-4506; https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph10094486
Received: 9 July 2013 / Revised: 12 September 2013 / Accepted: 16 September 2013 / Published: 23 September 2013
(This article belongs to the Special Issue Epidemiology of West Nile Virus)
West Nile virus (WNV) appeared in the U.S. in 1999 and has since become endemic, with yearly summer epidemics causing tens of thousands of cases of serious disease over the past 14 years. Analysis of WNV strains isolated during the 2006–2007 epidemic seasons demonstrates that a new genetic variant had emerged coincidentally with an intense outbreak in Idaho during 2006. The isolates belonging to the new variant carry a 13 nt deletion, termed ID-Δ13, located at the variable region of the 3′UTR, and are genetically related. The analysis of deletions and insertions in the 3′UTR of two major lineages of WNV revealed the presence of conserved repeats and two indel motifs in the variable region of the 3′UTR. One human and two bird isolates from the Idaho 2006–2007 outbreaks were sequenced using Illumina technology and within-host variability was analyzed. Continued monitoring of new genetic variants is important for public health as WNV continues to evolve. View Full-Text
Keywords: Flavivirus; West Nile virus; genetic variation; WNV evolution; indel motifs; next generation sequencing Flavivirus; West Nile virus; genetic variation; WNV evolution; indel motifs; next generation sequencing
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MDPI and ACS Style

Grinev, A.; Chancey, C.; Añez, G.; Ball, C.; Winkelman, V.; Williamson, P.; Foster, G.A.; Stramer, S.L.; Rios, M. Genetic Analysis of West Nile Virus Isolates from an Outbreak in Idaho, United States, 2006–2007. Int. J. Environ. Res. Public Health 2013, 10, 4486-4506. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph10094486

AMA Style

Grinev A, Chancey C, Añez G, Ball C, Winkelman V, Williamson P, Foster GA, Stramer SL, Rios M. Genetic Analysis of West Nile Virus Isolates from an Outbreak in Idaho, United States, 2006–2007. International Journal of Environmental Research and Public Health. 2013; 10(9):4486-4506. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph10094486

Chicago/Turabian Style

Grinev, Andriyan, Caren Chancey, Germán Añez, Christopher Ball, Valerie Winkelman, Phillip Williamson, Gregory A. Foster, Susan L. Stramer, and Maria Rios. 2013. "Genetic Analysis of West Nile Virus Isolates from an Outbreak in Idaho, United States, 2006–2007" International Journal of Environmental Research and Public Health 10, no. 9: 4486-4506. https://0-doi-org.brum.beds.ac.uk/10.3390/ijerph10094486

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