1921
Volume 84, Issue 5
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645

Abstract

Abstract.

To determine the mechanisms of maintenance and evolution of Japanese encephalitis virus (JEV) in a temperate zone, we attempted to isolate JEV from mosquitoes and pigs in Toyama Prefecture, Japan. A total of 87 JEVs were isolated from female mosquitoes and pigs during 2005–2009. The prevalence of JEV in Toyama Prefecture was seasonally late in comparison with that of the virus during 1966–1972. Furthermore, JEVs were isolated after the peak in the number of female . Among JEV strains isolated in this study, two distinct groups were observed within genotype I of the phylogeny generated from nucleotide sequence information derived from the envelope and capsid/premembrane genes: strains belonging to the major type were isolated during 2005–2009, and strains from the minor type were isolated only in 2007. The major type has exhibited gradual change in its envelope and capsid/premembrane genes, and all isolates obtained in 2008 and 2009 had a novel deletion of seven nucleotides in the variable region of the 3′-untranslated region.

Loading

Article metrics loading...

The graphs shown below represent data from March 2017
/content/journals/10.4269/ajtmh.2011.10-0188
2011-05-05
2019-03-19
Loading full text...

Full text loading...

/deliver/fulltext/14761645/84/5/695.html?itemId=/content/journals/10.4269/ajtmh.2011.10-0188&mimeType=html&fmt=ahah

References

  1. Gubler DJ, Kuno G, Markoff L, Knipe DM, Howley PM, , 2007. Flaviviruses. , eds. Fields Virology. Fifth edition. Philadelphia, PA: Lippincott Williams and Wilkins, 11531252. [Google Scholar]
  2. Hashimoto H, Nomoto A, Watanabe K, Mori T, Takezawa T, Aizawa C, Takegami T, Hiramatsu K, , 1988. Molecular cloning and complete nucleotide sequence of the genome of Japanese encephalitis virus Beijing-1 strain. Virus Genes 1: 305317.[Crossref] [Google Scholar]
  3. Sumiyoshi H, Mori C, Fuke I, Morita K, Kuhara S, Kondou J, Kikuchi Y, Nagamatu H, Igarashi A, , 1987. Complete nucleotide sequence of the Japanese encephalitis virus genome RNA. Virology 161: 497510.[Crossref] [Google Scholar]
  4. Uchil PD, Satchidanandam V, , 2001. Phylogenetic analysis of Japanese encephalitis virus: envelope gene based analysis reveals a fifth genotype, geographic clustering, and multiple introductions of the virus into the Indian subcontinent. Am J Trop Med Hyg 65: 242251. [Google Scholar]
  5. Solomon T, Ni H, Beasley DW, Ekkelenkamp M, Cardosa MJ, Barrett AD, , 2003. Origin and evolution of Japanese encephalitis virus in southeast Asia. J Virol 77: 30913098.[Crossref] [Google Scholar]
  6. Burke DS, Leake CJ, Monath TP, , 1988. Japanese encephalitis. , ed. The Arboviruses: Epidemiology and Ecology. Volume III. Boca Raton, FL: CRC Press, 6392. [Google Scholar]
  7. Igarashi A, Kurstak E, , 1992. Japanese encephalitis virus, infection, and control. , ed. Control of Virus Diseases. New York: Marcel Dekker, Inc., 309342. [Google Scholar]
  8. Ogata T, , 1985. Epidemiology of Japanese encephalitis in Japan [in Japanese]. Rinsho To Uirusu 13: 150155. [Google Scholar]
  9. Infectious Diseases Surveillance Center, 2008. Japanese encephalitis. Annual Report 2006 National Epidemiological Surveillance of Vaccine-Preventable Disease [in Japanese]. Tokyo: National Institute of Infectious Disease, 7496. [Google Scholar]
  10. Watanabe M, Hasegawa S, Obara M, Ando S, Yamauchi T, Takizawa T, 2011. Long-term analyses of the population dynamics of Culex tritaeniorhynchus and Anopheles sinensis, and serological survey of Japanese encephalitis virus among swine in Toyama Prefecture, Japan, from 1969 to 2003. Toyama, Japan: Skarafactory Ltd. [Google Scholar]
  11. Kamimura K, , 1998. Studies on the population dynamics of the principal vector mosquito of Japanese encephalitis [in Japanese]. Med Entomol Zool 49: 181185.[Crossref] [Google Scholar]
  12. Nerome R, Tajima S, Takasaki T, Yoshida T, Kotaki A, Lim CK, Ito M, Sugiyama A, Yamauchi A, Yano T, Kameyama T, Morishita I, Kuwayama M, Ogawa T, Sahara K, Ikegaya A, Kanda M, Hosoya Y, Itokazu K, Onishi H, Chiya S, Yoshida Y, Tabei Y, Katsuki K, Tabata K, Harada S, Kurane I, , 2007. Molecular epidemiological analyses of Japanese encephalitis virus isolates from swine in Japan from 2002 to 2004. J Gen Virol 88: 27622768.[Crossref] [Google Scholar]
  13. Nabeshima T, Loan HT, Inoue S, Sumiyoshi M, Haruta Y, Nga PT, Huoung VT, Del Carmen Parquet M, Hasebe F, Morita K, , 2009. Evidence of frequent introductions of Japanese encephalitis virus from south-east Asia and continental east Asia to Japan. J Gen Virol 90: 827832.[Crossref] [Google Scholar]
  14. Ma SP, Yoshida Y, Makino Y, Tadano M, Ono T, Ogawa M, , 2003. Short report: a major genotype of Japanese encephalitis virus currently circulating in Japan. Am J Trop Med Hyg 69: 151154. [Google Scholar]
  15. Jan LR, Yueh YY, Wu YC, Horng CB, Wang GR, , 2000. Genetic variation of Japanese encephalitis virus in Taiwan. Am J Trop Med Hyg 62: 446452. [Google Scholar]
  16. Kumar S, Tamura K, Nei M, , 2004. MEGA3: Integrated Software for Molecular Evolutionary Analysis and Sequence Alignment. Brief Bioinform 5: 150163.[Crossref] [Google Scholar]
  17. Kimura M, , 1980. A simple method for estimating evolutionary rates of base substitutions through comparative studies of nucleotide sequences. J Mol Evol 16: 111120.[Crossref] [Google Scholar]
  18. Katori K, Matsuura K, Nakayama T, Imai S, Kamimura K, , 1975. Epidemiological surveillance of Japanese encephalitis in Toyama prefecture for 10 years (2nd report) [in Japanese]. Toyama-ken Noson Igaku Kenkyukai 6: 5561. [Google Scholar]
  19. Takegami T, Ishak H, Miyamoto C, Shirai Y, Kamimura K, , 2000. Isolation and molecular comparison of Japanese encephalitis virus in Ishikawa, Japan. Jpn J Infect Dis 53: 178179. [Google Scholar]
  20. Takashima I, Watanabe T, Ouchi N, Hashimoto N, , 1988. Ecological studies of Japanese encephalitis virus in Hokkaido: interepidemic outbreaks of swine abortion and evidence for the virus to overwinter locally. Am J Trop Med Hyg 38: 420427. [Google Scholar]
  21. Doi R, Oya A, Shirasaka A, Yabe S, Sasa M, , 1983. Studies on Japanese encephalitis virus infection of reptiles. II. Role of lizards on hibernation of Japanese encephalitis virus. Jpn J Exp Med 53: 125134. [Google Scholar]
  22. Rosen L, , 1986. The natural history of Japanese encephalitis virus. Annu Rev Microbiol 40: 395414.[Crossref] [Google Scholar]
  23. Horimoto M, Sakai T, Goto H, , 1987. Changes in antibody titers in cattle with Japanese encephalitis virus infection. Indian J Med Res 86: 695701. [Google Scholar]
  24. Ilkal MA, Dhanda V, Rao BU, George S, Mishra AC, Prasanna Y, Gopalkrishna S, Pavri KM, , 1988. Absence of viraemia in cattle after experimental infection with Japanese encephalitis virus. Trans R Soc Trop Med Hyg 82: 628631.[Crossref] [Google Scholar]
  25. Hayashi K, Shichijo A, Mifune K, Matsuo S, Wada Y, Mogi M, Itoh T, , 1973. Ecological studies on Japanese encephalitis virus: results of investigations in Nagasaki area, Japan, in 1969, 1970 and 1971. Tropical Medicine 15: 214224. [Google Scholar]
  26. Fukumi H, Hayashi K, Mifune K, Shichijo A, Matsuo S, Omori N, Wada Y, Oda T, Mogi M, Mori A, , 1976. Ecology of Japanese encephalitis virus in Japan: I. Mosquito and pig infection with the virus in relation to human incidences. Tropical Medicine 17: 97110. [Google Scholar]
  27. Nakamura H, Yoshida M, Kimura A, Yumisashi T, Kimura T, Ueba N, Kunita N, , 2002. Ecological studies on Japanese encephalitis (JE) in Osaka Prefecture 6. Surveillance of JE virus activity and the vector mosquito abundance during the years 1968–1997. Med Entomol Zool 53: 2942.[Crossref] [Google Scholar]
  28. Shichijo A, Mifune K, Hayashi K, Wada Y, Oda T, Omori N, , 1972. Experimental infection of Culex tritaeniorhynchus summorosus mosquitoes reared in biotron with Japanese encephalitis virus [in Japanese]. Tropical Medicine 14: 218229. [Google Scholar]
http://instance.metastore.ingenta.com/content/journals/10.4269/ajtmh.2011.10-0188
Loading
/content/journals/10.4269/ajtmh.2011.10-0188
Loading

Data & Media loading...

  • Received : 29 Mar 2010
  • Accepted : 04 Feb 2011

Most Cited This Month

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error