Powassan virus

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Related to Powassan virus: Ixodes cookei

Pow·as·san vi·rus

a virus of the genus Flavivirus (family Flaviviridae), transmitted by ixodid ticks and causing Powassan encephalitis in children; also capable of producing meningoencephalomyelitis in rabbits and children.
[Powassan, Ontario, the Canadian province where first isolated]
Farlex Partner Medical Dictionary © Farlex 2012

Powassan virus

A rare Flavivirus, transmitted by tick bite, which occasionally causes encephalitis.
See also: virus
Medical Dictionary, © 2009 Farlex and Partners


city in Ontario, Canada, where disease was first reported.
Powassan encephalitis - an acute disease of children, transmitted by ixodid ticks.
Powassan virus - causes Powassan encephalitis.
Medical Eponyms © Farlex 2012
References in periodicals archive ?
More cases of Jamestown Canyon and Powassan virus neuroinvasive disease were reported in 2017 than in any previous year.
Telford III, an expert on tick-borne diseases and a professor in the department of infectious diseases and global health at the Cummings School of Veterinary Medicine at Tufts University in North Grafton, said what is being called Powassan virus in Massachusetts is actually deer-tick virus, which he discovered in 1997.
They found that Powassan virus and the related Langat virus could infect and spread in salivary glands and midgut.
"Almost all of these cases are in Lyme country, where humans are much more likely to be preyed upon by deer ticks carrying deer tick virus than ticks carrying Powassan virus," El Khoury said in a statement Monday.
Powassan virus was first identified in North America in 1958, when a 5-year-old boy from Powassan, Ont., died of encephalitis.
Detection of Powassan virus (lineage II) from Ixodes scapularis collected from four counties in Maine.
Twenty-two Powassan virus disease cases were reported from nine states (Connecticut, Maine, Massachusetts, Minnesota, New Hampshire, New York, North Carolina, Rhode Island, and Wisconsin).
As primary vectors of Powassan virus (lineage 1), I.
Powassan virus. Atlanta, GA: US Department of Health and Human Services, CDC; 2015.
Louis encephalitis (23), Jamestown Canyon virus (11), Powassan virus (seven), eastern equine encephalitis virus (six), unspecific California serogroup virus (four), and Cache Valley virus (one).