Russian autumn encephalitis virus

Synonym for Japanese encephalitis virus.

Russian spring-summer encephalitis virus (RSSEV) A strain of Tick-borne encephalitis virus in the genus Flavivirus. The principal tick vector for RSSEV is Ixodes persulcatus, and several small rodents and insectivores appear to be amplifying hosts. The disease is acquired in humans by tick bites, and onset is gradual with fever, headache, nausea, vomiting and photophobia. The case fatality rate is about 20% in the rural areas where the disease is prevalent, with children most affected. Survivors may suffer from neurological sequelae such as mild paralysis. A formalin-inactivated vaccine made from virus grown in chick embryo cells is available in Russia. Synonym: tick-borne encephalitis virus (Far Eastern subtype).

Kuno G et al (1998) J Virol 72, 73 Monath TP and Heinz FX (1996) In Fields Virology, Third edition, edited by BN Fields et al. Philadelphia: Lippincott-Raven, p. 961

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