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Epidemiology of Schistosoma japonicum in China: morbidity and strategies for control in the Dongting Lake region.
Int J Parasitol. 2000 Mar; 30(3):273-81.IJ

Abstract

Dongting Lake, covering a very large surface water area of 2691km(2), is located in Hunan Province in the southern part of the People's Republic of China. It is the second-largest freshwater lake in China and plays an important role in regulating the amount of water in the Yangtze River, China's longest river. The annual water level of the lake changes by as much as 15m, rising in summer and falling in winter. Asian schistosomiasis has been endemic in the Dongting Lake region for centuries and it has had a devastating effect on the public health of the local people. After a difficult struggle for more than four decades, a concerted programme, supported by the World Bank Loan and instigated in 1992, has resulted in remarkable progress in the control of the disease in many endemic areas of the region. However, the great challenge remains to consolidate and maintain the achievements made to date. The Schistosoma japonicum intermediate host (Oncomelania hupensis hupensis) snail habitats are huge, estimated at 1768km(2) in 1996; these are increasing at a rate of 34.7km(2) annually due to high silt deposition from the Yangtze River itself and from the connecting rivers in Hunan province, and construction of embankments in the Dongting Lake region. It is anticipated that the construction of the Three Gorges Super Dam, the largest engineering project ever undertaken, will substantially extend the range of the snail habitats and increase the number of new schistosomiasis cases. In many areas, human re-infections with S. japonicum after drug (praziquantel) treatment remain unacceptably high (up to 20% of those treated are re-infected annually) due to occupational (mainly fishing) water contact. This paper reviews the history and the current status of schistosomiasis control in the lake region, it explores the epidemiological factors which influence the prevalence of the infection and the disease it causes, and it provides insight into future approaches to control which might finally eradicate the infection.

Authors+Show Affiliations

Tropical Health Program, Australian Centre for International and Tropical Health and Nutrition, The University of Queensland, Brisbane, Australia. yueshenL@qimr.edu.auNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Review

Language

eng

PubMed ID

10719120

Citation

Li, Y S., et al. "Epidemiology of Schistosoma Japonicum in China: Morbidity and Strategies for Control in the Dongting Lake Region." International Journal for Parasitology, vol. 30, no. 3, 2000, pp. 273-81.
Li YS, Sleigh AC, Ross AG, et al. Epidemiology of Schistosoma japonicum in China: morbidity and strategies for control in the Dongting Lake region. Int J Parasitol. 2000;30(3):273-81.
Li, Y. S., Sleigh, A. C., Ross, A. G., Williams, G. M., Tanner, M., & McManus, D. P. (2000). Epidemiology of Schistosoma japonicum in China: morbidity and strategies for control in the Dongting Lake region. International Journal for Parasitology, 30(3), 273-81.
Li YS, et al. Epidemiology of Schistosoma Japonicum in China: Morbidity and Strategies for Control in the Dongting Lake Region. Int J Parasitol. 2000;30(3):273-81. PubMed PMID: 10719120.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Epidemiology of Schistosoma japonicum in China: morbidity and strategies for control in the Dongting Lake region. AU - Li,Y S, AU - Sleigh,A C, AU - Ross,A G, AU - Williams,G M, AU - Tanner,M, AU - McManus,D P, PY - 2000/3/17/pubmed PY - 2000/7/15/medline PY - 2000/3/17/entrez SP - 273 EP - 81 JF - International journal for parasitology JO - Int J Parasitol VL - 30 IS - 3 N2 - Dongting Lake, covering a very large surface water area of 2691km(2), is located in Hunan Province in the southern part of the People's Republic of China. It is the second-largest freshwater lake in China and plays an important role in regulating the amount of water in the Yangtze River, China's longest river. The annual water level of the lake changes by as much as 15m, rising in summer and falling in winter. Asian schistosomiasis has been endemic in the Dongting Lake region for centuries and it has had a devastating effect on the public health of the local people. After a difficult struggle for more than four decades, a concerted programme, supported by the World Bank Loan and instigated in 1992, has resulted in remarkable progress in the control of the disease in many endemic areas of the region. However, the great challenge remains to consolidate and maintain the achievements made to date. The Schistosoma japonicum intermediate host (Oncomelania hupensis hupensis) snail habitats are huge, estimated at 1768km(2) in 1996; these are increasing at a rate of 34.7km(2) annually due to high silt deposition from the Yangtze River itself and from the connecting rivers in Hunan province, and construction of embankments in the Dongting Lake region. It is anticipated that the construction of the Three Gorges Super Dam, the largest engineering project ever undertaken, will substantially extend the range of the snail habitats and increase the number of new schistosomiasis cases. In many areas, human re-infections with S. japonicum after drug (praziquantel) treatment remain unacceptably high (up to 20% of those treated are re-infected annually) due to occupational (mainly fishing) water contact. This paper reviews the history and the current status of schistosomiasis control in the lake region, it explores the epidemiological factors which influence the prevalence of the infection and the disease it causes, and it provides insight into future approaches to control which might finally eradicate the infection. SN - 0020-7519 UR - https://www.unboundmedicine.com/medline/citation/10719120/Epidemiology_of_Schistosoma_japonicum_in_China:_morbidity_and_strategies_for_control_in_the_Dongting_Lake_region_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0020-7519(99)00201-5 DB - PRIME DP - Unbound Medicine ER -