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prevalence and genetic characterization of powassan virus strains infecting ixodes scapularis in 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 in 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. the lineage from i. cookei was pow. the remaining viruses from i. scapularis g ...201222890037
powassan virus in ixodes cookei and mustelidae in new england.powassan virus was recovered from a pool of 3 nymphal and 1 adult female ixodes cookei removed from a striped skunk (mephitis mephitis) trapped in massachusetts during 1967 and from a pool of 9 nymphal i. cookei from a long-tailed weasel (mustela frenata) captured in connecticut during 1978. virus was detected in the blood of both mammals. hemagglutination-inhibiting (hi) antibody to powassan virus was demonstrated in 16.0% of the skunks sampled in connecticut, and neutralizing antibody was dete ...1979230364
emerging cases of powassan virus encephalitis in new england: clinical presentation, imaging, and review of the literature.powassan virus (powv) is a rarely diagnosed cause of encephalitis in the united states. in the northeast, it is transmitted by ixodes scapularis, the same vector that transmits lyme disease. the prevalence of powv among animal hosts and vectors has been increasing. we present 8 cases of powv encephalitis from massachusetts and new hampshire in 2013-2015.201626668338
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