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Home / Equine Research Bank / Can Vet J / An eastern equine encephalomyelitis (EEE) outbreak in Quebec...
The Canadian veterinary journal = La revue veterinaire canadienne2010; 51(9); 1011-1015;

An eastern equine encephalomyelitis (EEE) outbreak in Quebec in the fall of 2008.

Abstract: Eastern equine encephalomyelitis (EEE) was diagnosed in 19 horses and a flock of emus in the province of Quebec in fall 2008. The EEE virus caused unusual gross lesions in the central nervous system of one horse. This disease is not usually present in Quebec and the relation between the outbreak and favorable environmental conditions that summer are discussed. Une éclosion d’encéphalomyélite équine de l’Est (ÉÉE) s’est produite chez 19 chevaux et dans un troupeau d’émeus au Québec à l’automne de 2008. Un cheval présentait une lésion macroscopique anormale dans le système nerveux central. Les causes de cette éclosion, en rapport avec les conditions environnementales favorables, sont discutées. (Traduit par les auteurs)
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Publication Date: 2010-12-02 PubMed ID: 21119870PubMed Central: PMC2920158
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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.

The research article chronicles an unusual outbreak of Eastern equine encephalomyelitis (EEE) in Quebec in 2008, affecting 19 horses and a flock of emus, and links this occurrence to favorable environmental conditions.

Introduction to Eastern equine encephalomyelitis (EEE)

  • The research is based on an Eastern equine encephalomyelitis (EEE) outbreak that happened in the fall of 2008 in the Canadian province of Quebec.
  • Eastern equine encephalomyelitis (EEE) is a rare but severe disease predominantly affecting horses and, in this case, a flock of emus, which is not common in the area.

Details of the Outbreak

  • In autumn 2008, EEE was diagnosed in multiple cases – 19 horses and a flock of emus showed signs of infection.
  • One horse presented with gross lesions in its central nervous system, a characteristic often associated with severe cases of EEE, marking the severity of this particular outbreak.

Discussion of Possible Cause

  • The research investigates and discusses the relationship between this outbreak and the unusually favorable environmental conditions observed during that summer in Quebec.
  • These conditions may have influenced either the survival, multiplication or transmission of the EEE virus, leading to an increased number of hosts and thus the observed outbreak.
  • This line of reasoning suggests that environmental changes or certain weather conditions could potentially influence the prevalence and spread of such diseases.

Significance of the Study

  • The study provides vital insights into how environmental factors can affect the occurrence and spread of diseases such as EEE. This understanding can guide future preventative measures and response strategies in case of similar outbreaks.
  • The unusual occurrence of the disease in Quebec, an area not usually affected by EEE, also prompts discussions about changes in disease patterns and distribution as related to environmental changes and animal movements.

Cite This Article

APA
Chénier S, Côté G, Vanderstock J, Macieira S, Laperle A, Hélie P. (2010). An eastern equine encephalomyelitis (EEE) outbreak in Quebec in the fall of 2008. Can Vet J, 51(9), 1011-1015.

Publication

The Canadian veterinary journal = La revue veterinaire canadienne
ISSN: 0008-5286
NlmUniqueID: 0004653
Country: Canada
Language: English
Volume: 51
Issue: 9
Pages: 1011-1015

Researcher Affiliations

Chénier, Sonia
  • Laboratoire d'épidémiosurveillance animale du Québec, Institut national de santé animale, Ministère de l'agriculture, des pêcheries et de l'alimentation du Québec, 3220 Sicotte, St-Hyacinthe, Québec. sonia.chenier@umontreal.ca
Côté, Geneviève
    Vanderstock, Johanne
      Macieira, Susana
        Laperle, Alain
          Hélie, Pierre

            MeSH Terms

            • Animals
            • Bird Diseases / epidemiology
            • Bird Diseases / pathology
            • Disease Outbreaks / veterinary
            • Dromaiidae
            • Encephalitis Virus, Eastern Equine / immunology
            • Encephalomyelitis, Eastern Equine / epidemiology
            • Encephalomyelitis, Eastern Equine / pathology
            • Encephalomyelitis, Eastern Equine / veterinary
            • Female
            • Horse Diseases / epidemiology
            • Horse Diseases / pathology
            • Horses
            • Male
            • Prevalence
            • Quebec / epidemiology
            • Seasons
            • Vaccination / veterinary

            References

            This article includes 19 references
            1. Eastern Equine Encephalitis Fact Sheet [homepage on the Internet] Centers for Disease Control and Prevention (CDC); [Last accessed July 12, 2010]. [updated 2008/05/28]. Available from http://www.cdc.gov/ncidod/dvbid/Arbor/eeefact.htm.
            2. Veazey RS, Vice CC, Cho DY, Tully TN Jr, Shane SM. Pathology of eastern equine encephalitis in emus (Dromaius novaehollandiae).. Vet Pathol 1994 Jan;31(1):109-11.
              pubmed: 8140715doi: 10.1177/030098589403100115google scholar: lookup
            3. Martin E, Ojkic D, Archambault M. Emus die from eastern equine encephalitis virus (EEEV) infection.. AHL Newsletter 2003;7:42.
            4. Morris CD. Eastern equine encephalitis.. J Florida Mosquito Control Assoc 1992;63:23–34.
            5. Giguère M, Gosselin P. Maladies zoonotiques et à transmission vectorielle. .
            6. Wright B, Kenney D. Equine viral encephalitis. .
            7. Carman S, McEwen B, DeLay J, Ojkic D. Equine viruses identified or isolated at the Animal Health Laboratory (AHL), 1998 to October 2008.. AHL Newsletter 2008;12:34.
            8. Desjardins F, Vincent C, Major M. Avertissement vétérinaire no.21: Encéphalite équine de l’Est (EEE). .
            9. Mayhew IG, Whitlock RH, Tasker JB. Equine cerebrospinal fluid: reference values of normal horses.. Am J Vet Res 1977 Aug;38(8):1271-4.
              pubmed: 911095
            10. Letson GW, Bailey RE, Pearson J, Tsai TF. Eastern equine encephalitis (EEE): a description of the 1989 outbreak, recent epidemiologic trends, and the association of rainfall with EEE occurrence.. Am J Trop Med Hyg 1993 Dec;49(6):677-85.
              pubmed: 8279635doi: 10.4269/ajtmh.1993.49.677google scholar: lookup
            11. National Climate Data and Information Archive [database on the Internet] Ottawa: Environment Canada; c2009. [Last accessed July 12, 2010]. Available from http://www.climate.weatheroffice.ec.gc.ca/climateData/canada_e.html?&.
            12. Sellers RF. Eastern equine encephalitis in Q and Connecticut, 1972: introduction by infected mosquitoes on the wind?. Can J Vet Res 1989 Jan;53(1):76-9.
              pmc: PMC1255517pubmed: 2563337
            13. . 2008 Summary of Eastern Equine Encephalitis Cases in the United States. .
            14. Bourque A, Simonet G. Q chapter — From Impacts to Adaptation: Canada in a Changing Climate 2007. .
            15. Gould EA, Higgs S. Impact of climate change and other factors on emerging arbovirus diseases.. Trans R Soc Trop Med Hyg 2009 Feb;103(2):109-21.
              pmc: PMC2915563pubmed: 18799177doi: 10.1016/j.trstmh.2008.07.025google scholar: lookup
            16. Young DS, Kramer LD, Maffei JG, Dusek RJ, Backenson PB, Mores CN, Bernard KA, Ebel GD. Molecular epidemiology of eastern equine encephalitis virus, New York.. Emerg Infect Dis 2008 Mar;14(3):454-60.
              pmc: PMC2570827pubmed: 18325261doi: 10.3201/eid1403.070816google scholar: lookup
            17. Armstrong PM, Andreadis TG, Anderson JF, Stull JW, Mores CN. Tracking eastern equine encephalitis virus perpetuation in the northeastern United States by phylogenetic analysis.. Am J Trop Med Hyg 2008 Aug;79(2):291-6.
              pubmed: 18689638
            18. Maxie MG, Youssef S. Nervous system. Jubb, Kennedy, and Palmer’s Pathology of Domestic Animals 2007;1:423–424.
            19. Tengelsen LA, Bowen RA, Royals MA, Campbell GL, Komar N, Craven RB. Response to and efficacy of vaccination against eastern equine encephalomyelitis virus in emus.. J Am Vet Med Assoc 2001 May 1;218(9):1469-73.
              pubmed: 11345313doi: 10.2460/javma.2001.218.1469google scholar: lookup

            Citations

            This article has been cited 13 times.
            1. Williams JA, Long SY, Zeng X, Kuehl K, Babka AM, Davis NM, Liu J, Trefry JC, Daye S, Facemire PR, Iversen PL, Bavari S, Pitt ML, Nasar F. Eastern equine encephalitis virus rapidly infects and disseminates in the brain and spinal cord of cynomolgus macaques following aerosol challenge.. PLoS Negl Trop Dis 2022 May;16(5):e0010081.
              doi: 10.1371/journal.pntd.0010081pubmed: 35533188google scholar: lookup
            2. Tang X, Sedda L, Brown HE. Predicting eastern equine encephalitis spread in North America: An ecological study.. Curr Res Parasitol Vector Borne Dis 2021;1:100064.
              doi: 10.1016/j.crpvbd.2021.100064pubmed: 35284888google scholar: lookup
            3. Azar SR, Campos RK, Bergren NA, Camargos VN, Rossi SL. Epidemic Alphaviruses: Ecology, Emergence and Outbreaks.. Microorganisms 2020 Aug 1;8(8).
              doi: 10.3390/microorganisms8081167pubmed: 32752150google scholar: lookup
            4. Oliver J, Tan Y, Haight JD, Tober KJ, Gall WK, Zink SD, Kramer LD, Campbell SR, Howard JJ, Das SR, Sherwood JA. Spatial and temporal expansions of Eastern equine encephalitis virus and phylogenetic groups isolated from mosquitoes and mammalian cases in New York State from 2013 to 2019.. Emerg Microbes Infect 2020 Dec;9(1):1638-1650.
              doi: 10.1080/22221751.2020.1774426pubmed: 32672516google scholar: lookup
            5. El-Sayed A, Kamel M. Climatic changes and their role in emergence and re-emergence of diseases.. Environ Sci Pollut Res Int 2020 Jun;27(18):22336-22352.
              doi: 10.1007/s11356-020-08896-wpubmed: 32347486google scholar: lookup
            6. Ludwig A, Zheng H, Vrbova L, Drebot MA, Iranpour M, Lindsay LR. Increased risk of endemic mosquito-borne diseases in Canada due to climate change.. Can Commun Dis Rep 2019 Apr 4;45(4):91-97.
              doi: 10.14745/ccdr.v45i04a03pubmed: 31285698google scholar: lookup
            7. Kumar B, Manuja A, Gulati BR, Virmani N, Tripathi BN. Zoonotic Viral Diseases of Equines and Their Impact on Human and Animal Health.. Open Virol J 2018;12:80-98.
              doi: 10.2174/1874357901812010080pubmed: 30288197google scholar: lookup
            8. Kulkarni MA, Berrang-Ford L, Buck PA, Drebot MA, Lindsay LR, Ogden NH. Major emerging vector-borne zoonotic diseases of public health importance in Canada.. Emerg Microbes Infect 2015 Jun 10;4(6):e33.
              doi: 10.1038/emi.2015.33pubmed: 26954882google scholar: lookup
            9. Saxton-Shaw KD, Ledermann JP, Kenney JL, Berl E, Graham AC, Russo JM, Powers AM, Mutebi JP. The first outbreak of eastern equine encephalitis in Vermont: outbreak description and phylogenetic relationships of the virus isolate.. PLoS One 2015;10(6):e0128712.
              doi: 10.1371/journal.pone.0128712pubmed: 26043136google scholar: lookup
            10. Berl E, Eisen RJ, MacMillan K, Swope BN, Saxton-Shaw KD, Graham AC, Turmel JP, Mutebi JP. Serological evidence for eastern equine encephalitis virus activity in white-tailed deer, Odocoileus virginianus, in Vermont, 2010.. Am J Trop Med Hyg 2013 Jan;88(1):103-7.
              doi: 10.4269/ajtmh.2012.12-0236pubmed: 23208886google scholar: lookup
            11. Lubelczyk C, Mutebi JP, Robinson S, Elias SP, Smith LB, Juris SA, Foss K, Lichtenwalner A, Shively KJ, Hoenig DE, Webber L, Sears S, Smith RP Jr. An epizootic of eastern equine encephalitis virus, Maine, USA in 2009: outbreak description and entomological studies.. Am J Trop Med Hyg 2013 Jan;88(1):95-102.
              doi: 10.4269/ajtmh.2012.11-0358pubmed: 23208877google scholar: lookup
            12. Kulkarni MA, Lecocq AC, Artsob H, Drebot MA, Ogden NH. Epidemiology and aetiology of encephalitis in Canada, 1994-2008: a case for undiagnosed arboviral agents?. Epidemiol Infect 2013 Nov;141(11):2243-55.
              doi: 10.1017/S095026881200252Xpubmed: 23148910google scholar: lookup
            13. Gardner CL, Ebel GD, Ryman KD, Klimstra WB. Heparan sulfate binding by natural eastern equine encephalitis viruses promotes neurovirulence.. Proc Natl Acad Sci U S A 2011 Sep 20;108(38):16026-31.
              doi: 10.1073/pnas.1110617108pubmed: 21896745google scholar: lookup
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