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He J, Qiu J, Liu G, Chen X, Liu D, Chen W, Zhang Y, Schantz P, 2000. Epidemiological survey on hydatidosis in Tibetan region of Western Sichuan. II. Infection situation among domestic and wild animals. Chin J Zoonoses 16 :62–65.
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2
Qiu J, Chen H, Che X, Liu G, Jue Y, Liu D, Zhu G, 1989. Natural alveolaris Echinococcus infection in yaks and sheep in Shiqu County, Sichuan Province. Endemic Dis Bull 4 :26–29.
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3
Xiao N, Qiu J, Nakao M, Nakaya K, Yamasaki H, Sako Y, Mamuti W, Schantz PM, Craig PS, Ito A, 2003. Short report: Identification of Echinococcus species from a yak in the Qinghai-Tibet plateau region of China. Am J Trop Med Hyg 69 :445–446.
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4
Bowles J, Blair D, McManus DP, 1992. Genetic variants within the genus Echinococcus identified by mitochondrial DNA sequencing. Mol Biochem Parasitol 54 :165–174.
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5
Zhang LH, Chai JJ, Jiao W, Osman Y, McManus DP, 1998. Mitochondrial genomic markers confirm the presence of the camel strain (G6) genotype of Echinococcus granulosus in north-western China. Parasitology 116 :29–33.
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6
Heath DD, Jensen O, Lightowlers MW, 2003. Progress in control of hydatidosis using vaccination - a review of formulation and delivery of the vaccine and recommendations for practical use in control programmes. Acta Trop 85 :133–143.
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7
McManus DP, 2002. The molecular epidemiology of Echinococcus granulosus and cystic hydatid disease. Trans R Soc Trop Med Hyg 96 :S1/151–S1/157.
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8
McManus DP, Zhang W, Li J, Bartley PB, 2003. Echinococcosis. Lancet 362 :1295–1304.
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SHORT REPORT: INADEQUACY OF YAKS AS HOSTS FOR THE SHEEP DOG STRAIN OF ECHINOCOCCUS GRANULOSUS OR FOR E. MULTILOCULARIS
DAVID D. HEATH
DAVID D. HEATH
Wallaceville Animal Research Centre, AgResearch Limited, Upper Hutt, New Zealand; Molecular Parasitology Laboratory, Australian Centre for International and Tropical Health and Nutrition, The Queensland Institute of Medical Research and the University of Queensland, Brisbane, Queensland, Australia
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LI HUA ZHANG
LI HUA ZHANG
Wallaceville Animal Research Centre, AgResearch Limited, Upper Hutt, New Zealand; Molecular Parasitology Laboratory, Australian Centre for International and Tropical Health and Nutrition, The Queensland Institute of Medical Research and the University of Queensland, Brisbane, Queensland, Australia
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DONALD P. MCMANUS
DONALD P. MCMANUS
Wallaceville Animal Research Centre, AgResearch Limited, Upper Hutt, New Zealand; Molecular Parasitology Laboratory, Australian Centre for International and Tropical Health and Nutrition, The Queensland Institute of Medical Research and the University of Queensland, Brisbane, Queensland, Australia
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Hydatid disease (echinococcosis) has a two-host cycle involving the domestic dog and grazing animals. Humans are also infected by the dog. Both unilocular (Echinococcus granulosus in yaks, sheep, and goats) and multilocular (alveolar) (E. multilocularis in hares and rodents) hydatids are common in western Sichuan in the People’s Republic of China. Humans and dogs are equally infected with both species. Many yaks (Bos grunniens) were found with multilocular cysts that visually were deemed to be E. multilocularis. However, a histologic and molecular study showed that they were actually E. granulosus. No infective cysts were found in 125 necropsied yaks. We conclude that the yak is an inadequate and dead-end host for the sheep dog (G1) strain of Echinococcus granulosus and also for E. multilocularis.
Author Notes
ProCite
RefWorks
Reference Manager
BibTeX
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-
1
He J, Qiu J, Liu G, Chen X, Liu D, Chen W, Zhang Y, Schantz P, 2000. Epidemiological survey on hydatidosis in Tibetan region of Western Sichuan. II. Infection situation among domestic and wild animals. Chin J Zoonoses 16 :62–65.
-
2
Qiu J, Chen H, Che X, Liu G, Jue Y, Liu D, Zhu G, 1989. Natural alveolaris Echinococcus infection in yaks and sheep in Shiqu County, Sichuan Province. Endemic Dis Bull 4 :26–29.
-
3
Xiao N, Qiu J, Nakao M, Nakaya K, Yamasaki H, Sako Y, Mamuti W, Schantz PM, Craig PS, Ito A, 2003. Short report: Identification of Echinococcus species from a yak in the Qinghai-Tibet plateau region of China. Am J Trop Med Hyg 69 :445–446.
-
4
Bowles J, Blair D, McManus DP, 1992. Genetic variants within the genus Echinococcus identified by mitochondrial DNA sequencing. Mol Biochem Parasitol 54 :165–174.
-
5
Zhang LH, Chai JJ, Jiao W, Osman Y, McManus DP, 1998. Mitochondrial genomic markers confirm the presence of the camel strain (G6) genotype of Echinococcus granulosus in north-western China. Parasitology 116 :29–33.
-
6
Heath DD, Jensen O, Lightowlers MW, 2003. Progress in control of hydatidosis using vaccination - a review of formulation and delivery of the vaccine and recommendations for practical use in control programmes. Acta Trop 85 :133–143.
-
7
McManus DP, 2002. The molecular epidemiology of Echinococcus granulosus and cystic hydatid disease. Trans R Soc Trop Med Hyg 96 :S1/151–S1/157.
-
8
McManus DP, Zhang W, Li J, Bartley PB, 2003. Echinococcosis. Lancet 362 :1295–1304.
| Past two years | Past Year | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 237 | 211 | 11 |
| Full Text Views | 230 | 2 | 0 |
| PDF Downloads | 50 | 2 | 0 |