Tick-borne encephalitis virus: Difference between revisions

From Wikipedia, the free encyclopedia
Browse history interactively
← Previous editNext edit →
Content deleted Content added
VisualWikitext
Rubinbot (talk | contribs)
43,100 edits
{{cite journal}} using User:Diberri/Template filler and www.pubmed.gov
Line 20: Line 20:
* Far Eastern subtype (formerly Russian Spring Summer encephalitis virus, RSSEV; principal tick vector: ''Ixodes persulcatus'').<ref>{{Cite book|last1=Goodman|first1=Jesse L.|last2=Dennis|first2=David T.|last3=Sonenshine|first3=Daniel E.|title=Tick-Borne Diseases of Humans|year=2005|publisher=ASM Press|location=Washington, DC|isbn=1-55581-238-4|page=151|chapter=Tick-Borne Encephalitis|lastauthoramp=&}}</ref>
* Far Eastern subtype (formerly Russian Spring Summer encephalitis virus, RSSEV; principal tick vector: ''Ixodes persulcatus'').<ref>{{Cite book|last1=Goodman|first1=Jesse L.|last2=Dennis|first2=David T.|last3=Sonenshine|first3=Daniel E.|title=Tick-Borne Diseases of Humans|year=2005|publisher=ASM Press|location=Washington, DC|isbn=1-55581-238-4|page=151|chapter=Tick-Borne Encephalitis|lastauthoramp=&}}</ref>


The reference strain is the Sofjin strain.<ref name=Kovalev>Kovalev SY, Mukhacheva TA, Kokorev VS, Belyaeva IV (2011) Tick-borne encephalitis virus: reference strain Sofjin and problem of its authenticity. Virus Genes</ref>
The reference strain is the Sofjin strain.<ref name=Kovalev>{{cite journal |author=Kovalev SY, Mukhacheva TA, Kokorev VS, Belyaeva IV |title=Tick-borne encephalitis virus: reference strain Sofjin and problem of its authenticity |journal=Virus Genes |volume=44 |issue=2 |pages=217–24 |year=2012 |month=April |pmid=22095094 |doi=10.1007/s11262-011-0690-9}}</ref>


==Clinical==
==Clinical==
Line 26: Line 26:
==Evolution==
==Evolution==


The ancestor of the extant strains appears to have separated into several clades approximately 2750 years ago.<ref name=Anonymous2012>Anonymous (2012) Molecular evolution of the tick-borne encephalitis and Powassan viruses. Mol Biol (Mosk). 46(1):82-92
The ancestor of the extant strains appears to have separated into several clades approximately 2750 years ago.<ref name=Anonymous2012>{{cite journal |author= |title=[Molecular evolution of the tick-borne encephalitis and Powassan viruses] |language=Russian |journal=Mol. Biol. (Mosk.) |volume=46 |issue=1 |pages=82–92 |year=2012 |pmid=22642104}}</ref> The [[Siberia]]n and [[Far East]]ern subtypes diverged about 2250 years ago.
</ref> The [[Siberia]]n and [[Far East]]ern subtypes diverged about 2250 years ago.


A second analysis suggests an earlier date of evolution (3300 years ago) with a rapid increase in the number of strains starting ~300 years ago.<ref name=Uzcátegui2012>Uzcátegui NY, Sironen T, Golovljova I, Jääskeläinen AE, Välimaa H, Lundkvist A, Plyusnin A, Vaheri A, Vapalahti O (2012) Rate of evolution and molecular epidemiology of tick-borne encephalitis virus in Europe, including two isolations from the same focus 44 years apart. J Gen Virol 93(4):786-796</ref>
A second analysis suggests an earlier date of evolution (3300 years ago) with a rapid increase in the number of strains starting ~300 years ago.<ref name=Uzcátegui2012>{{cite journal |author=Uzcátegui NY, Sironen T, Golovljova I, ''et al.'' |title=Rate of evolution and molecular epidemiology of tick-borne encephalitis virus in Europe, including two isolations from the same focus 44 years apart |journal=J. Gen. Virol. |volume=93 |issue=Pt 4 |pages=786–96 |year=2012 |month=April |pmid=22205716 |doi=10.1099/vir.0.035766-0}}</ref>


This virus has been transmitted at least three times into [[Japan]] between 260-430 years ago.<ref name=Suzuki2007>Suzuki Y (2007) Multiple transmissions of tick-borne encephalitis virus between Japan and Russia. Genes Genet Syst 82(3):187-195</ref><ref name=Takashima2001>Takashima I, Hayasaka D, Goto A, Kariwa H, Mizutani T (2001) Epidemiology of tick-borne encephalitis (TBE) and phylogenetic analysis of TBE viruses in Japan and Far Eastern Russia. Jpn J Infect Dis 54(1):1-11</ref>
This virus has been transmitted at least three times into [[Japan]] between 260-430 years ago.<ref name=Suzuki2007>{{cite journal |author=Suzuki Y |title=Multiple transmissions of tick-borne encephalitis virus between Japan and Russia |journal=Genes Genet. Syst. |volume=82 |issue=3 |pages=187–95 |year=2007 |month=June |pmid=17660689}}</ref><ref name=Takashima2001>{{cite journal |author=Takashima I, Hayasaka D, Goto A, Kariwa H, Mizutani T |title=Epidemiology of tick-borne encephalitis (TBE) and phylogenetic analysis of TBE viruses in Japan and Far Eastern Russia |journal=Jpn. J. Infect. Dis. |volume=54 |issue=1 |pages=1–11 |year=2001 |month=February |pmid=11326122}}</ref>


The strains circulating in [[Latvia]] appear to have originated from both Russia and Western Europe<ref name=Lundkvist2001>Lundkvist k, Vene S, Golovljova I, Mavtchoutko V, Forsgren M, Kalnina V, Plyusnin A (2001) Characterization of tick-borne encephalitis virus from Latvia: evidence for co-circulation of three distinct subtypes. J Med Virol 65(4):730-735</ref> while those in [[Estonia]] appear to have originated in [[Russia]].<ref name=Golovljova2004>Golovljova I, Vene S, Sjölander KB, Vasilenko V, Plyusnin A, Lundkvist A (2004) Characterization of tick-borne encephalitis virus from Estonia. J Med Virol 74(4):580-588</ref> The [[Lithuania]]n strains appear to be related to those from Western Europe.<ref name=Mickiené2001>Mickiené A, Vene S, Golovljova I, Laiskonis A, Lindquist L, Plyusnin A, Lundkvist A (2001) Tick-borne encephalitis virus in Lithuania. Eur J Clin Microbiol Infect Dis 20 (12):886-888</ref>
The strains circulating in [[Latvia]] appear to have originated from both Russia and Western Europe<ref name=Lundkvist2001>{{cite journal |author=Lundkvist k, Vene S, Golovljova I, ''et al.'' |title=Characterization of tick-borne encephalitis virus from Latvia: evidence for co-circulation of three distinct subtypes |journal=J. Med. Virol. |volume=65 |issue=4 |pages=730–5 |year=2001 |month=December |pmid=11745938}}</ref> while those in [[Estonia]] appear to have originated in [[Russia]].<ref name=Golovljova2004>{{cite journal |author=Golovljova I, Vene S, Sjölander KB, Vasilenko V, Plyusnin A, Lundkvist A |title=Characterization of tick-borne encephalitis virus from Estonia |journal=J. Med. Virol. |volume=74 |issue=4 |pages=580–8 |year=2004 |month=December |pmid=15484275 |doi=10.1002/jmv.20224}}</ref> The [[Lithuania]]n strains appear to be related to those from Western Europe.<ref name=Mickiené2001>{{cite journal |author=Mickiené A, Vene S, Golovljova I, ''et al.'' |title=Tick-borne encephalitis virus in Lithuania |journal=Eur. J. Clin. Microbiol. Infect. Dis. |volume=20 |issue=12 |pages=886–8 |year=2001 |month=December |pmid=11837641}}</ref>


==References==
==References==

Revision as of 09:42, 20 July 2012

Tick-borne meningoencephalitis virus
Virus classification
Group:
Group IV ((+)ssRNA)
Family:
Flaviviridae
Genus:
Flavivirus
Species:
Tick-borne meningoencephalitis virus

Tick-borne encephalitis virus is the virus associated with Tick-borne encephalitis.

Taxonomy

The responsible virus, Tick-Borne Encephalitis Virus (TBEV), is a member of the genus Flavivirus. Other close relatives include Omsk hemorrhagic fever virus, Kyasanur forest disease virus, Alkhurma virus, Louping ill virus and the Langat virus.

Subtypes

TBE virus has three subtypes:

  • Western European subtype (formerly Central European encephalitis virus, CEEV; principal tick vector: Ixodes ricinus);
  • Siberian subtype (formerly West Siberian virus; principal tick vector: Ixodes persulcatus);
  • Far Eastern subtype (formerly Russian Spring Summer encephalitis virus, RSSEV; principal tick vector: Ixodes persulcatus).[1]

The reference strain is the Sofjin strain.[2]

Clinical

Evolution

The ancestor of the extant strains appears to have separated into several clades approximately 2750 years ago.[3] The Siberian and Far Eastern subtypes diverged about 2250 years ago.

A second analysis suggests an earlier date of evolution (3300 years ago) with a rapid increase in the number of strains starting ~300 years ago.[4]

This virus has been transmitted at least three times into Japan between 260-430 years ago.[5][6]

The strains circulating in Latvia appear to have originated from both Russia and Western Europe[7] while those in Estonia appear to have originated in Russia.[8] The Lithuanian strains appear to be related to those from Western Europe.[9]

References

  1. ^ Goodman, Jesse L.; Dennis, David T.; Sonenshine, Daniel E. (2005). "Tick-Borne Encephalitis". Tick-Borne Diseases of Humans. Washington, DC: ASM Press. p. 151. ISBN 1-55581-238-4. {{cite book}}: Unknown parameter |lastauthoramp= ignored (|name-list-style= suggested) (help)
  2. ^ Kovalev SY, Mukhacheva TA, Kokorev VS, Belyaeva IV (2012). "Tick-borne encephalitis virus: reference strain Sofjin and problem of its authenticity". Virus Genes. 44 (2): 217–24. doi:10.1007/s11262-011-0690-9. PMID 22095094. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  3. ^ "[Molecular evolution of the tick-borne encephalitis and Powassan viruses]". Mol. Biol. (Mosk.) (in Russian). 46 (1): 82–92. 2012. PMID 22642104.
  4. ^ Uzcátegui NY, Sironen T, Golovljova I; et al. (2012). "Rate of evolution and molecular epidemiology of tick-borne encephalitis virus in Europe, including two isolations from the same focus 44 years apart". J. Gen. Virol. 93 (Pt 4): 786–96. doi:10.1099/vir.0.035766-0. PMID 22205716. {{cite journal}}: Explicit use of et al. in: |author= (help); Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  5. ^ Suzuki Y (2007). "Multiple transmissions of tick-borne encephalitis virus between Japan and Russia". Genes Genet. Syst. 82 (3): 187–95. PMID 17660689. {{cite journal}}: Unknown parameter |month= ignored (help)
  6. ^ Takashima I, Hayasaka D, Goto A, Kariwa H, Mizutani T (2001). "Epidemiology of tick-borne encephalitis (TBE) and phylogenetic analysis of TBE viruses in Japan and Far Eastern Russia". Jpn. J. Infect. Dis. 54 (1): 1–11. PMID 11326122. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  7. ^ Lundkvist k, Vene S, Golovljova I; et al. (2001). "Characterization of tick-borne encephalitis virus from Latvia: evidence for co-circulation of three distinct subtypes". J. Med. Virol. 65 (4): 730–5. PMID 11745938. {{cite journal}}: Explicit use of et al. in: |author= (help); Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  8. ^ Golovljova I, Vene S, Sjölander KB, Vasilenko V, Plyusnin A, Lundkvist A (2004). "Characterization of tick-borne encephalitis virus from Estonia". J. Med. Virol. 74 (4): 580–8. doi:10.1002/jmv.20224. PMID 15484275. {{cite journal}}: Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)
  9. ^ Mickiené A, Vene S, Golovljova I; et al. (2001). "Tick-borne encephalitis virus in Lithuania". Eur. J. Clin. Microbiol. Infect. Dis. 20 (12): 886–8. PMID 11837641. {{cite journal}}: Explicit use of et al. in: |author= (help); Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link)

External links


Stub icon

This virus-related article is a stub. You can help Wikipedia by expanding it.

Retrieved from "https://en.wikipedia.org/w/index.php?title=Tick-borne_encephalitis_virus&oldid=503253211"