Deer tick virus

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Deer tick virus
Black and white Feulgen stained microphotograph depicting intact tick salivary glands infected by deer tick virus. Hypotrophied salivary acinus filled with amorphous masses of pinkstaining (=Feulgen positive) material (arrows). Scale bar = 10 µm.
Black and white Feulgen stained microphotograph depicting intact tick salivary glands infected by deer tick virus. Hypotrophied salivary acinus filled with amorphous masses of pinkstaining (=Feulgen positive) material (arrows). Scale bar = 10 µm.
Virus classification Edit this classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Kitrinoviricota
Class: Flasuviricetes
Order: Amarillovirales
Family: Flaviviridae
Genus: Flavivirus
Species:
Virus:
Deer tick virus
Deer tick virus
PreventionAvoid possible tick-infested areas, such as the woodlands
Deaths2[1][2]

Deer tick virus (DTV) is a virus in the genus Flavivirus spread via ticks that causes encephalitis.[1]

Taxonomy

DTV closely resembles

amino acid sequence identity).[3]
Due to their close similarities, DTV is also called Powassan virus lineage II.

.
Values above branches indicate bootstrapped confidence values. Branch lengths are proportional to percent similarity in sequence.

Epidemiology

DTV has a strong prevalence in the northeastern and north central part of the

pathogenic or it does not easily infect humans. Human incidence might be severely underestimated.[1]

History

In 1997, it was isolated from I. scapularis ticks collected in Massachusetts and Connecticut.[6]

A fatal case of DTV encephalitis occurred at a

horses. Lyme disease was commonly reported in the patient's area of residence, showing that tick activity was prevalent in the patient's area (at the time of admission).[1]

In 2017, another fatal case of DTV was documented when a 72-year-old woman was admitted to a hospital in

anterior horn cells within the spinal cord and meningoencephalitis of the brain were discovered. A considerable loss of Purkinje cells was evident in the patient.[2]

See also

Footnotes