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Echinococcus multilocularis and Echinococcus canadensis in wolves from western Canada

Published online by Cambridge University Press:  18 October 2013

JANNA M. SCHURER ,
KAREN M. GESY ,
BRETT T. ELKIN  and
EMILY J. JENKINS
JANNA M. SCHURER*
Affiliation:
Department of Veterinary Microbiology, University of Saskatchewan, Saskatoon, S7N 5B4, Canada
KAREN M. GESY
Affiliation:
Department of Veterinary Microbiology, University of Saskatchewan, Saskatoon, S7N 5B4, Canada
BRETT T. ELKIN
Affiliation:
Wildlife Division, Environment and Natural Resources, Government of the Northwest Territories, Yellowknife, X1A 3S8, Canada
EMILY J. JENKINS
Affiliation:
Department of Veterinary Microbiology, University of Saskatchewan, Saskatoon, S7N 5B4, Canada
*
* Corresponding author: Department of Veterinary Microbiology, University of Saskatchewan, Saskatoon, S7N 5B4, Canada. E-mail: jschurer@gmail.com
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Summary

Echinococcus species are important parasites of wildlife, domestic animals and people worldwide; however, little is known about the prevalence, intensity and genetic diversity of Echinococcus tapeworms in Canadian wildlife. Echinococcus tapeworms were harvested from the intestines of 42% of 93 wolves (Canis lupus) from five sampling regions in the Northwest Territories, Manitoba and Saskatchewan, and visually identified to genus level by microscopic examination. Genetic characterization was successful for tapeworms from 30 wolves, and identified both Echinococcus canadensis and Echinococcus multilocularis in all sampling locations. Mixed infections of E. canadensis/E. multilocularis, as well as the G8/G10 genotypes of E. canadensis were observed. These findings suggest that wolves may be an important definitive host for both parasite species in western Canada. This represents the first report of wolves naturally infected with E. multilocularis in North America, and of wolves harbouring mixed infections with multiple species and genotypes of Echinococcus. These observations provide important information regarding the distribution and diversity of zoonotic species of Echinococcus in western North America, and may be of interest from public health and wildlife conservation perspectives.

Keywords

Echinococcus granulosuswolfCanadagenotypegeographic distribution

Information

Type
Research Article
Information
Parasitology , Volume 141 , Issue 2 , February 2014 , pp. 159 - 163
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Copyright
Copyright © Cambridge University Press 2013 

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References

REFERENCES

Bowles, J. and McManus, D. P. (1993). NADH dehydrogenase 1 gene sequences compared for species and strains of the genus Echinococcus . International Journal of Parasitology 23, 969–972.CrossRefGoogle ScholarPubMed
Castrodale, L. J., Beller, M., Wilson, J. F., Schantz, P. M., McManus, D. P., Zhang, L.-H., Fallico, F. G. and Sacco, F. D. (2002). Two atypical cases of cystic echinococcosis (Echininococcus granulosus) in Alaska, 1999. American Journal of Tropical Medicine and Hygiene 66, 325–327.CrossRefGoogle ScholarPubMed
Catalano, S., Lejuene, M., Liccioli, S., Verocai, G. G., Gesy, K. M., Jenkins, E. J., Kutz, S. J., Fuentealba, C., Duignan, P. J. and Massolo, A. (2012). Echinococcus multilocularis in urban coyotes, Alberta, Canada. Emerging Infectious Diseases 18. doi: http://dx.doi.org/10.3201/eid1810.120119.CrossRefGoogle ScholarPubMed
Choquette, L. P. E., Gibson, G. G., Kuyt, E. and Pearson, A. M. (1973). Helminths of wolves, Canis lupus L., in the Yukon and Northwest Territories. Canadian Journal of Zoology 51, 1087–1091.CrossRefGoogle ScholarPubMed
Craig, H. L. and Craig, P. S. (2005). Helminth parasites of wolves (Canis lupus): a species list and an analysis of published prevalence studies in Nearctic and Palaearctic populations. Journal of Helminthology 79, 95–103.CrossRefGoogle Scholar
Eckert, J., Gemmell, M. A., Meslin, F.-X. and Pawlowski, Z. S. (2001). WHO/OIE Manual of Echinococcosis in Humans and Animals: a Public Health Problem of Global Concern. World Organisation for Animal Health, Paris, France.Google Scholar
Gesy, K. M., Pawlik, M., Kapronczai, L., Wagner, B. A., Elkin, B. T., Schwantje, H. and Jenkins, E. J. (2013). An improved method for the extraction and quantification of adult Echinococcus from wildlife definitive hosts. Parasitology Research 112, 2075–2078.CrossRefGoogle ScholarPubMed
Jenkins, D. J. and Rickard, M. D. (1985). Specific antibody responses to Taenia hydatigena, Taenia pisiformis and Echinococcus granulosus in dogs. Australian Veterinary Journal 62, 72–78.CrossRefGoogle ScholarPubMed
Jenkins, E. J., Peregrine, A. S., Hill, J. E., Somers, C., Gesy, K. M., Barnes, B., Gottstein, B. and Polley, L. (2012). Detection of European strain of Echinococcus multilocularis in North America. Emerging Infectious Diseases 18, 1010–1012.CrossRefGoogle ScholarPubMed
Jenkins, E. J., Castrodale, L. J., de Rosemond, S., Dixon, B., Elmore, S. A., Gesy, K. M., Hoberg, E., Schurer, J., Simard, M. and Thompson, R. C. A. (2013). Tradition and transition: parasitic zoonoses in people and animals in northern North American and Greenland. Advances in Parasitology 82, 33–204.CrossRefGoogle Scholar
Joly, D. O. and Messier, F. (2004). The distribution of Echinococcus granulosus in moose: evidence for parasite-induced vulnerability to predation by wolves? Oecologia 140, 586–590.CrossRefGoogle ScholarPubMed
Jones, A. and Pybus, M. J. (2001). Taeniasis and echinococcosis. In Parasitic Diseases of Wild Mammals (ed. Samuel, W. M., Pybus, M. J. and Kocan, A. A.), pp. 150–192. Iowa State University Press, Ames, USA.CrossRefGoogle Scholar
Kuyt, E. (1972). Food habits and ecology of wolves on barren-ground caribou range in the Northwest Territories. Canadian Wildlife Services, Report Series No. 21, Ottawa, Canada.Google Scholar
Martinek, K., Kolarova, L., Hapl, E., Literak, I. and Uhrin, M. (2001). Echinococcus multilocularis in European wolves (Canis lupus). Parasitology Research 87, 838–839.Google ScholarPubMed
McManus, D. P., Zhang, W., Li, J. and Bartley, P. B. (2003). Echinococcosis. Lancet 362, 1295–1304.CrossRefGoogle ScholarPubMed
Moks, E., Jogisalu, I., Valdmann, H. and Saarma, U. (2008). First report of Echinoococcus granulosus G8 in Eurasia and a reappraisal of the phylogenetic relationships of ‘genotypes’ G5–G10. Parasitology 135, 647–654.CrossRefGoogle Scholar
Nakao, M., McManus, D. P., Schantz, P. M., Craig, P. S. and Ito, A. (2007). A molecular phylogeny of the genus Echinococcus inferred from complete mitochondrial genomes. Parasitology 134, 713–722.CrossRefGoogle ScholarPubMed
Nakao, M., Xiao, N., Okamoto, M., Yanagida, T., Sako, Y. and Ito, A. (2009). Geographic pattern of genetic variation of the fox tapeworm Echinococcus multilocularis . Parasitology International 58, 384–389.CrossRefGoogle ScholarPubMed
Pimlott, D. H., Shannon, J. A. and Kolenosky, G. B. (1969). The Ecology of the Timber Wolf in Algonquin Provincial Park. Ontario Department of Lands and Forests, Research Report (Wildlife) 87, p. 92. Ottawa, Canada.Google Scholar
Rau, M. E. and Caron, F. R. (1979). Parasite-induced susceptibility of moose to hunting. Canadian Journal of Zoology 57, 2466–2468.CrossRefGoogle Scholar
Rausch, R. L. (1995). Life cycle patterns and geographic distribution of Echinococcus species. In Echinococcus and Hydatid Disease (ed. Thompson, R. C. A. and Lymbery, A. J.), pp. 89–134. CAB International, Wallingford, UK.Google Scholar
Rausch, R. L. (2003). Cystic echinococcosis in the Arctic and sub-Arctic. Parasitology 127, A73–A85.CrossRefGoogle ScholarPubMed
Rausch, R. L. and Schiller, E. L. (1956). Studies on the helminth fauna of Alaska. XXV. Ecology and public health significance of Echinococcus sibiricensis Rausch & Schiller, 1954, on St. Lawrence Island. Parasitology 46, 395–419.CrossRefGoogle Scholar
Rausch, R. L. and Richards, S. H. (1971). Observations on parasite–host relationships of Echinococcus multilocularis Leuckart, 1863, in North Dakota. Canadian Journal of Zoology 49, 1317–1330.CrossRefGoogle ScholarPubMed
Samuel, W. M., Ramalingam, S. and Carbyn, L. N. (1978). Helminths in coyotes (Canis latrans Say), wolves (Canis lupus L.), and red foxes (Vulpes vulpes L.) of southwestern Manitoba. Canadian Journal of Zoology 56, 2614–2617.CrossRefGoogle ScholarPubMed
Schurer, J. M., Shury, T., Leighton, F. A. and Jenkins, E. J. (2013). Surveillance for Echinococcus canadensis genotypes in Canadian ungulates. International Journal for Parasitology: Parasites and Wildlife 2, 97–101. doi: http://dx.doi.org/10.1016/j.ijppaw.2013.02.004.Google ScholarPubMed
Stefanic, S., Shaikenov, B. S., Deplazes, P., Dinkel, A., Torgerson, P. R. and Mathis, A. (2004). Polymerase chain reaction for detection of patent infections of Echinococcus granulosus (‘sheep strain’) in naturally infected dogs. Parasitology Research 92, 347–351.CrossRefGoogle ScholarPubMed
Sweatman, G. K. (1952). Distribution and incidence of Echinococcus granulosus in man and other animals with special reference to Canada. Parasitology 43, 480–485.Google ScholarPubMed
Sweatman, G. K. and Williams, J. F. (1963). Comparative studies on the biology and morphology of Echinococcus granulosus from domestic livestock, moose and reindeer. Parasitology 53, 493–514.CrossRefGoogle ScholarPubMed
Thompson, R. C. A., Boxell, A. C., Ralston, B. J., Constantine, C. C., Hobbs, R. P., Shury, T. and Olson, M. E. (2006). Molecular and morphological characterization of Echinococcus in cervids from North America. Parasitology 132, 439–447.CrossRefGoogle ScholarPubMed
Trachsel, D., Deplazes, P. and Mathis, A. (2007). Identification of Taeniid eggs in the faeces from carnivores based on multiplex PCR using targets in mitochondrial DNA. Parasitology 134, 911–920.CrossRefGoogle ScholarPubMed
Wang, W., Wu, Y. and Ding, Z. (1989). The occurrence of Echinococcus multilocularis Leuckart, 1863 in fox and wolf in Tacheng District, Xinjiang. Bulletin of Endemic Diseases 4, 8–12.Google Scholar
Xiao, N., Nakao, M., Qiu, J., Budke, C. M., Giraudoux, P., Craig, P. S. and Ito, A. (2006). Dual infection of animal hosts with different Echinococcus species in the eastern Qinghai-Tibet plateau region of China. American Journal of Tropical Medicine and Hygiene 75, 292–294.CrossRefGoogle ScholarPubMed
Zhang, Y., Bart, J.-M., Giraudoux, P., Craig, P., Vuitton, D. and Wen, H. (2006). Morphological and molecular characteristics of Echinococcus multilocularis and Echinococcus granulosus mixed infection in a dog from Xinjiang, China. Veterinary Parasitology 139, 244–248.CrossRefGoogle Scholar