Prevalence and Genetic Characterization of Powassan Virus Strains Infecting Ixodes scapularis in Connecticut.

Am J Trop Med Hyg. 2012 Aug 13. [Epub ahead of print]

Anderson JF, Armstrong PM.


Department of Entomology and Center for Vector Biology and Zoonotic Diseases, The Connecticut Agricultural Experiment Station, New Haven, Connecticut.


A total of 30 Powassan virus (POWV) isolates from   Ixodes scapularis collected from Bridgeport and North Branford, CT in 2008, 2010, 2011, and 2012 and one earlier isolate from   Ixodes cookei collected in Old Lyme, CT 1978 were characterized by phylogenetic analysis of their envelope gene sequences. Powassan virus sequences segregated into two major groups termed the deer tick virus (DTV) and Powassan (POW) lineages.

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