Seroepizootiological survey of Japanese encephalitis virus and Getah virus in regional horse race tracks from 1991 to 1997 in Japan.
Abstract: A sero-epizootiological survey was conducted for Japanese encephalitis virus (JEV) and Getah virus (GeV) at 10 to 20 regional horse race tracks from 1991 to 1997 in Japan. It was observed that geometrical mean (GM) antibody titer to JEV and GeV was 10 to 50 times higher than others at several race courses (RCs) almost every year. Of them, several race horses showing high antibody titer, which were suggested to be infected with the virus, were also observed in this survey. These data suggested that the viruses have spread among race horses almost every year in Japan, although, fortunately, no horse showing clinical illness due to these viruses was observed. The calendar years and the names of the race courses in which the spread of JEV was suggested were Sonoda and Nakatsu RCs in 1991, Nakatsu RC in 1992, Arao RC in 1993, Nagoya RC in 1994, Kaminoyama, Urawa, Saga and Arao RCs in 1995 and Ooi and Saga RCs in 1997. Spread of JEV was not observed in 1996. The calendar year and name of the race courses at which the spread of GeV was suggested were at Ooi, Sonoda and Nakatsu RCs in 1991, Arao RC in 1992, Nakatsu RC in 1994 and 1995, Funabashi RC in 1996, Saga RC in 1997. It was suggested that surveillance of JEV and GeV should be continued in the future in at least the southern to middle parts of Japan. It has also been suggested that it is necessary to promote the wider use of vaccines to persons related to horse racing.
Publication Date: 1999-09-16 PubMed ID: 10487225DOI: 10.1292/jvms.61.877Google Scholar: Lookup
The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- Journal Article
Summary
This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.
This is a study that monitored the spread of Japanese encephalitis virus (JEV) and Getah virus (GeV) among horses at various regional race tracks in Japan from 1991 to 1997.
Objective of the Research
- The research focused on studying the prevalence of Japanese encephalitis virus (JEV) and Getah virus (GeV) in horses at 10 to 20 regional horse race tracks in Japan across the years 1991 to 1997.
Key Findings
- The study found that the average (geometrical mean) antibody titer (measure of immune response) to JEV and GeV was 10 to 50 times higher than other measurements at several race courses almost every year.
- Some race horses showed high antibody titers, suggesting that they had been infected with one or both of the viruses.
- Despite evidence of presence of both JEV and GeV, no horse displayed clinical illness due to these viruses.
Particular Years and Locations of Interest
- Spread of JEV was observed at different race courses for each year between 1991-1995 and again in 1997. However, there was no observed spread of JEV in 1996.
- Spread of GeV was observed at various race courses in 1991, 1992, 1994, 1995, 1996, and finally 1997.
Recommendations
- The researchers suggest continuing surveillance of JEV and GeV, particularly in the southern to middle parts of Japan.
- They also highlight the importance of promoting the use of vaccines to those associated with horse racing, as a means to prevent spread and outbreak of these viral diseases.
Cite This Article
APA
Sugiura T, Shimada K.
(1999).
Seroepizootiological survey of Japanese encephalitis virus and Getah virus in regional horse race tracks from 1991 to 1997 in Japan.
J Vet Med Sci, 61(8), 877-881.
https://doi.org/10.1292/jvms.61.877 Publication
Researcher Affiliations
- Epizootic Research Station, Equine Research Institute, The Japan Racing Association, Shimotsuga-gun, Tochigi.
MeSH Terms
- Alphavirus / immunology
- Alphavirus Infections / epidemiology
- Animals
- Antibodies, Viral / analysis
- Encephalitis Virus, Japanese / immunology
- Encephalitis, Japanese / epidemiology
- Encephalitis, Japanese / veterinary
- Encephalitis, Japanese / virology
- Horse Diseases / epidemiology
- Horse Diseases / virology
- Horses
- Japan / epidemiology
Citations
This article has been cited 7 times.- Kim HH, Yang DK, Ji M, Lee SK, Hyun BH. Genotype-specific neutralizing antibody titers against Japanese encephalitis virus genotypes 1 and 3 in horses immunized with a genotype 3 vaccine.. Clin Exp Vaccine Res 2020 Jul;9(2):102-107.
- Kading RC, Abworo EO, Hamer GL. Rift Valley Fever Virus, Japanese Encephalitis Virus, and African Swine Fever Virus: Three Transboundary, Vector-Borne, Veterinary Biothreats With Diverse Surveillance, and Response Capacity Needs.. Front Vet Sci 2019;6:458.
- Yun SI, Lee YM. Early Events in Japanese Encephalitis Virus Infection: Viral Entry.. Pathogens 2018 Aug 13;7(3).
- Bannai H, Nemoto M, Ochi A, Kikuchi T, Kobayashi M, Tsujimura K, Yamanaka T, Kondo T. Epizootiological Investigation of Getah Virus Infection among Racehorses in Japan in 2014.. J Clin Microbiol 2015 Jul;53(7):2286-91.
- Wang H, Liang G. Epidemiology of Japanese encephalitis: past, present, and future prospects.. Ther Clin Risk Manag 2015;11:435-48.
- Yang DK, Oh YI, Kim HR, Lee YJ, Moon OK, Yoon H, Kim B, Lee KW, Song JY. Serosurveillance for Japanese encephalitis virus in wild birds captured in Korea.. J Vet Sci 2011 Dec;12(4):373-7.
- Yang DK, Kim BH, Kweon CH, Nah JJ, Kim HJ, Lee KW, Yang YJ, Mun KW. Serosurveillance for Japanese encephalitis, Akabane, and Aino viruses for Thoroughbred horses in Korea.. J Vet Sci 2008 Dec;9(4):381-5.
Use Nutrition Calculator
Check if your horse's diet meets their nutrition requirements with our easy-to-use tool Check your horse's diet with our easy-to-use tool
Talk to a Nutritionist
Discuss your horse's feeding plan with our experts over a free phone consultation Discuss your horse's diet over a phone consultation
Submit Diet Evaluation
Get a customized feeding plan for your horse formulated by our equine nutritionists Get a custom feeding plan formulated by our nutritionists
