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1
Spear RC, Seto E, Liang S, Birkner M, Hubbard A, Qiu D, Yang C, Zhong B, Xu F, Gu X, Davis GM, 2004. Factors influencing the transmission of Schistosoma japonicum in the mountains of Sichuan Province of China. Am J Trop Med Hyg 70 :48–56.
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2
Dessein AJ, Marquet S, Henri S, El Wali NE, Hillaire D, Rodrigues V, Prata A, Ali QM, Gharib B, de Reggi M, Magzoub MM, Saeed OK, Abdelhameed AA, Abel L, 1999. Infection and disease in human schistosomiasis mansoni are under distinct major gene control. Microbes Infect 1 :561–567.
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3
Dessein AJ, Couissinier P, Demeure C, Rihet P, Kohlstaedt S, Carneiro-Carvalho D, Ouattara M, Goudot-Crozel V, Dessein H, Bourgois A, 1992. Environmental, genetic and immunological factors in human resistance to Schistosoma mansoni. Immunol Invest 21 :423–453.
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4
Marquet S, Abel L, Hillaire D, Dessein H, Kalil J, Feingold J, Weissenbach J, Dessein AJ, 1996. Genetic localization of a locus controlling the intensity of infection by Schistosoma mansoni on chromosome 5q31-q33. Nat Genet 14 :181–184.
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5
Abel L, Dessein AJ, 1997. The impact of host genetics on susceptibility to human infectious diseases. Curr Opin Immunol 9 :509–516.
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6
Abel L, Demenais F, Prata A, Souza AE, Dessein A, 1991. Evidence for the segregation of a major gene in human susceptibility/resistance to infection by Schistosoma mansoni. Am J Hum Genet 48 :959–970.
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7
Hirayama K, 2004. Immunogenetic analysis of post-schistosomal liver fibrosis. Parasitol Int 53 :193–196.
-
8
Bethony J, Williams JT, Blangero J, Kloos H, Gazzinelli A, Soares-Filho B, Coelho L, Alves-Fraga L, Williams-Blangero S, Loverde PT, Correa-Oliveira R, 2002. Additive host genetic factors influence fecal egg excretion rates during Schistosoma mansoni infection in a rural area in Brazil. Am J Trop Med Hyg 67 :336–343.
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9
King CH, Blanton RE, Muchiri EM, Ouma JH, Kariuki HC, Mungai P, Magak P, Kadzo H, Ireri E, Koech DK, 2004. Low heritable component of risk for infection intensity and infection-associated disease in urinary schistosomiasis among Wadigo village populations in Coast Province, Kenya. Am J Trop Med Hyg 70 :57–62.
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10
Zhu R, Guo JG, 2003. Research progress of the family clustering on Schistosomiasis japonica. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 21: 366–368. (In Chinese).
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11
Seto E, Liang S, Qiu D, Gu X, Spear RC, 2001. A protocol for geographically randomized snail surveys in schistosomiasis fieldwork using the global positioning system. Am J Trop Med Hyg 64 :98–99.
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12
Spear RC, Zhong B, Mao Y, Hubbard A, Birkner M, Remais J, Qiu D, 2004. Spatial and temporal variability in schistosome cercarial density detected by mouse bioassays in village irrigation ditches in Sichuan, China. Am J Trop Med Hyg 71 :554–557.
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13
Expert WHO, Committee on the Control of Schistosomiasis, 1993. The Control of schistosomiasis: second report of the WHO Expert Committee. Geneva: World Health Organization.
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14
Southwest Foundation for Biomedical Research, 1999. PEDSYS v2.03. San Antonio, TX: Southwest Foundation for Biomedical Research.
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15
Southwest Foundation for Biomedical Research, 2004. SOLAR v2.1.2. San Antonio, TX: Southwest Foundation for Biomedical Research.
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16
Lange K, Westlake J, Spence MA, 1976. Extensions to pedigree analysis. III. Variance components by the scoring method. Ann Hum Genet 39 :485–491.
-
17
Stata Corporation, 2001. Intercooled Stata 7.0. College Station, TX: Stata Corporation.
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18
Ross AG, Sleigh AC, Li YS, Williams GM, Aligui GD, McManus DP, 2000. Is there immunity to Schistosoma japonicum? Parasitol Today 16 :159–164.
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19
Scott JT, Diakhate M, Vereecken K, Fall A, Diop M, Ly A, De Clercq D, de Vlas SJ, Berkvens D, Kestens L, Gryseels B, 2003. Human water contacts patterns in Schistosoma mansoni epidemic foci in northern Senegal change according to age, sex and place of residence, but are not related to intensity of infection. Trop Med Int Health 8 :100–108.
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20
Seto E, Xu B, Liang S, Gong P, Wu WP, Davis G, Qiu DC, Gu XG, Spear R, 2002. The use of remote sensing for predictive modeling of schistosomiasis in China. Photogrammetric Engineering and Remote Sensing 68 :167–174.
| Past two years | Past Year | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 11 | 11 | 3 |
| Full Text Views | 224 | 67 | 0 |
| PDF Downloads | 24 | 13 | 0 |
GENETIC AND HOUSEHOLD RISK FACTORS FOR SCHISTOSOMA JAPONICUM INFECTION IN THE PRESENCE OF LARGER SCALE ENVIRONMENTAL DIFFERENCES IN THE MOUNTAINOUS TRANSMISSION AREAS OF CHINA
EDMUND Y. W. SETO
EDMUND Y. W. SETO
School of Public Health, University of California, Berkeley, California; Institute of Parasitic Disease, Sichuan Center for Disease Control and Prevention, Chengdu, Sichuan, People’s Republic of China; University of Connecticut Medical School, Farmington, Connecticut
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BO ZHONG
BO ZHONG
School of Public Health, University of California, Berkeley, California; Institute of Parasitic Disease, Sichuan Center for Disease Control and Prevention, Chengdu, Sichuan, People’s Republic of China; University of Connecticut Medical School, Farmington, Connecticut
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JOHN KOUCH
JOHN KOUCH
School of Public Health, University of California, Berkeley, California; Institute of Parasitic Disease, Sichuan Center for Disease Control and Prevention, Chengdu, Sichuan, People’s Republic of China; University of Connecticut Medical School, Farmington, Connecticut
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ALAN HUBBARD
ALAN HUBBARD
School of Public Health, University of California, Berkeley, California; Institute of Parasitic Disease, Sichuan Center for Disease Control and Prevention, Chengdu, Sichuan, People’s Republic of China; University of Connecticut Medical School, Farmington, Connecticut
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ROBERT C. SPEAR
ROBERT C. SPEAR
School of Public Health, University of California, Berkeley, California; Institute of Parasitic Disease, Sichuan Center for Disease Control and Prevention, Chengdu, Sichuan, People’s Republic of China; University of Connecticut Medical School, Farmington, Connecticut
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Schistosoma japonicum egg excretion and kinship relationship data from 13 endemic villages in the mountainous transmission area near Xichang, in Sichuan province, China, were analyzed via a variance components methodology to assess the relative contribution of kinship, shared household, and shared village to the risk of infection. Large intervillage differences in egg counts exist in this region due to differences in transmission potential related to environmental differences in snail density and agricultural practices. After accounting for these intervillage differences, there was no kinship or household effect on egg excretion. This reinforces earlier findings that suggest environmental factors dominate risk in this region.
Author Notes
ProCite
RefWorks
Reference Manager
BibTeX
Zotero
EndNote
-
1
Spear RC, Seto E, Liang S, Birkner M, Hubbard A, Qiu D, Yang C, Zhong B, Xu F, Gu X, Davis GM, 2004. Factors influencing the transmission of Schistosoma japonicum in the mountains of Sichuan Province of China. Am J Trop Med Hyg 70 :48–56.
-
2
Dessein AJ, Marquet S, Henri S, El Wali NE, Hillaire D, Rodrigues V, Prata A, Ali QM, Gharib B, de Reggi M, Magzoub MM, Saeed OK, Abdelhameed AA, Abel L, 1999. Infection and disease in human schistosomiasis mansoni are under distinct major gene control. Microbes Infect 1 :561–567.
-
3
Dessein AJ, Couissinier P, Demeure C, Rihet P, Kohlstaedt S, Carneiro-Carvalho D, Ouattara M, Goudot-Crozel V, Dessein H, Bourgois A, 1992. Environmental, genetic and immunological factors in human resistance to Schistosoma mansoni. Immunol Invest 21 :423–453.
-
4
Marquet S, Abel L, Hillaire D, Dessein H, Kalil J, Feingold J, Weissenbach J, Dessein AJ, 1996. Genetic localization of a locus controlling the intensity of infection by Schistosoma mansoni on chromosome 5q31-q33. Nat Genet 14 :181–184.
-
5
Abel L, Dessein AJ, 1997. The impact of host genetics on susceptibility to human infectious diseases. Curr Opin Immunol 9 :509–516.
-
6
Abel L, Demenais F, Prata A, Souza AE, Dessein A, 1991. Evidence for the segregation of a major gene in human susceptibility/resistance to infection by Schistosoma mansoni. Am J Hum Genet 48 :959–970.
-
7
Hirayama K, 2004. Immunogenetic analysis of post-schistosomal liver fibrosis. Parasitol Int 53 :193–196.
-
8
Bethony J, Williams JT, Blangero J, Kloos H, Gazzinelli A, Soares-Filho B, Coelho L, Alves-Fraga L, Williams-Blangero S, Loverde PT, Correa-Oliveira R, 2002. Additive host genetic factors influence fecal egg excretion rates during Schistosoma mansoni infection in a rural area in Brazil. Am J Trop Med Hyg 67 :336–343.
-
9
King CH, Blanton RE, Muchiri EM, Ouma JH, Kariuki HC, Mungai P, Magak P, Kadzo H, Ireri E, Koech DK, 2004. Low heritable component of risk for infection intensity and infection-associated disease in urinary schistosomiasis among Wadigo village populations in Coast Province, Kenya. Am J Trop Med Hyg 70 :57–62.
-
10
Zhu R, Guo JG, 2003. Research progress of the family clustering on Schistosomiasis japonica. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 21: 366–368. (In Chinese).
-
11
Seto E, Liang S, Qiu D, Gu X, Spear RC, 2001. A protocol for geographically randomized snail surveys in schistosomiasis fieldwork using the global positioning system. Am J Trop Med Hyg 64 :98–99.
-
12
Spear RC, Zhong B, Mao Y, Hubbard A, Birkner M, Remais J, Qiu D, 2004. Spatial and temporal variability in schistosome cercarial density detected by mouse bioassays in village irrigation ditches in Sichuan, China. Am J Trop Med Hyg 71 :554–557.
-
13
Expert WHO, Committee on the Control of Schistosomiasis, 1993. The Control of schistosomiasis: second report of the WHO Expert Committee. Geneva: World Health Organization.
-
14
Southwest Foundation for Biomedical Research, 1999. PEDSYS v2.03. San Antonio, TX: Southwest Foundation for Biomedical Research.
-
15
Southwest Foundation for Biomedical Research, 2004. SOLAR v2.1.2. San Antonio, TX: Southwest Foundation for Biomedical Research.
-
16
Lange K, Westlake J, Spence MA, 1976. Extensions to pedigree analysis. III. Variance components by the scoring method. Ann Hum Genet 39 :485–491.
-
17
Stata Corporation, 2001. Intercooled Stata 7.0. College Station, TX: Stata Corporation.
-
18
Ross AG, Sleigh AC, Li YS, Williams GM, Aligui GD, McManus DP, 2000. Is there immunity to Schistosoma japonicum? Parasitol Today 16 :159–164.
-
19
Scott JT, Diakhate M, Vereecken K, Fall A, Diop M, Ly A, De Clercq D, de Vlas SJ, Berkvens D, Kestens L, Gryseels B, 2003. Human water contacts patterns in Schistosoma mansoni epidemic foci in northern Senegal change according to age, sex and place of residence, but are not related to intensity of infection. Trop Med Int Health 8 :100–108.
-
20
Seto E, Xu B, Liang S, Gong P, Wu WP, Davis G, Qiu DC, Gu XG, Spear R, 2002. The use of remote sensing for predictive modeling of schistosomiasis in China. Photogrammetric Engineering and Remote Sensing 68 :167–174.
| Past two years | Past Year | Past 30 Days | |
|---|---|---|---|
| Abstract Views | 11 | 11 | 3 |
| Full Text Views | 224 | 67 | 0 |
| PDF Downloads | 24 | 13 | 0 |