Enhancing collaboration between China and African countries for schistosomiasis control

Xu, Jing; Yu, Qing; Tchuenté, Louis-Albert Tchuem; Bergquist, Robert; Sacko, Moussa; Utzinger, Jürg; Lin, Dan-Dan; Yang, Kun; Zhang, Lijuan; Wang, Qiang; Li, Shi-Zhu; Guo, Jing; Zhou, Xiao‐Nong

doi:10.1016/s1473-3099(15)00360-6

Cited by 49 publications

(28 citation statements)

References 61 publications

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“…However, it is almost impossible to achieve schistosomiasis elimination depending on mass drug administration (MDA) with praziquantel alone, which remains the primary strategy for schistosomiasis control until now [89–91]. Currently, China is aiding the elimination of schistosomiasis from mainland Africa [92, 93]. The approaches, which have been proved to be effective to block the transmission cycle of S. japonicum in China, may be effective to control the transmission of other Schistosoma species, with adaption to local epidemiological profiles.…”

Section: Discussionmentioning

confidence: 99%

Approaches being used in the national schistosomiasis elimination programme in China: a review

Wang

Hong

et al. 2017

Infect Dis Poverty

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Schistosomiasis japonica, caused by the human blood fluke Schistosoma japonicum, remains a major public health problem in China, although great success has been achieved. The control efforts during the past half-decade, notably the wide implementation of the new integrated strategy with emphasis on control of the source of S. japonicum infection across the country since 2004, has greatly reduced S. japonicum in humans, livestock, and intermediate host Oncomelania hupensis snails, and transmission control of schistosomiasis was achieved in China in 2015. A two-stage roadmap was therefore proposed for schistosomiasis elimination in 2015, with aims to achieve transmission interruption by 2020 and achieve disease elimination by 2025 in the country. During the last two decades, a variety of approaches, which target the epidemiological factors of schistosomiasis japonica have been developed, in order to block the transmission cycle of the parasite. These approaches have been employed in the national or local schistosomiasis control activities, and facilitated, at least in part, the progress of the schistosomiasis elimination programs. Here, we present an approach to control the source of S. japonicum infection, three new tools for snail control, three approaches for detecting and monitoring S. japonicum infection, and a novel model for health education. These approaches are considered to play a great role in the stage moving towards transmission interruption and elimination of schistosomiasis in China.Electronic supplementary materialThe online version of this article (doi:10.1186/s40249-017-0271-9) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 99%

Approaches being used in the national schistosomiasis elimination programme in China: a review

Wang

Hong

et al. 2017

Infect Dis Poverty

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“…Our article represents a starting point for considering an environmental framework. Next steps will be to fully define and explore these issues, perhaps within recent bilateral initiatives [93], with the aim of developing operational protocols for future endorsement by the WHO-Geneva and WHO-AFRO at international and national levels.…”

Section: Towards An Appropriate Sampling Frameworkmentioning

confidence: 99%

Towards interruption of schistosomiasis transmission in sub-Saharan Africa: developing an appropriate environmental surveillance framework to guide and to support ‘end game’ interventions

et al. 2017

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Schistosomiasis is a waterborne parasitic disease in sub-Saharan Africa, particularly common in rural populations living in impoverished conditions. With the scale-up of preventive chemotherapy, national campaigns will transition from morbidity- to transmission-focused interventions thus formal investigation of actual or expected declines in environmental transmission is needed as ‘end game’ scenarios arise. Surprisingly, there are no international or national guidelines to do so in sub-Saharan Africa. Our article therefore provides an introduction to key practicalities and pitfalls in the development of an appropriate environmental surveillance framework. In this context, we discuss how strategies need to be adapted and tailored to the local level to better guide and support future interventions through this transition. As detection of egg-patent infection in people becomes rare, careful sampling of schistosome larvae in freshwater and in aquatic snails with robust species-specific DNA assays will be required. Appropriate metrics, derived from observed prevalence(s) as compared with predetermined thresholds, could each provide a clearer insight into contamination- and exposure-related dynamics. Application could be twofold, first to certify areas currently free from schistosomiasis transmission or second to red-flag recalcitrant locations where extra effort or alternative interventions are needed.Electronic supplementary materialThe online version of this article (doi:10.1186/s40249-016-0215-9) contains supplementary material, which is available to authorized users.

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“…Currently, China is transferring its successful experiences on schistosomiasis control to Southeast Asia and Africa [97, 98], our multidisciplinary, integrated approach may provide valuable experiences for the global schistosomiasis elimination programs.…”

Section: Discussionmentioning

confidence: 99%

A multidisciplinary, integrated approach for the elimination of schistosomiasis: a longitudinal study in a historically hyper-endemic region in the lower reaches of the Yangtze River, China from 2005 to 2014

Wang

YinPing³

et al. 2017

Infect Dis Poverty

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BackgroundAlthough great success has been achieved, schistosomiasis remains a major public health concern in China, and the remaining core endemic regions are concentrated along the middle and lower reaches of the Yangtze River. In this longitudinal study, we evaluated the effectiveness of a multidisciplinary, integrated approach for schistosomiasis elimination in a historically hyper-endemic region in the lower reaches of the Yangtze River, China over the 10-year period from 2005 through 2014.MethodsA three-step roadmap for schistosomiasis elimination was designed in the study site, and multidisciplinary, integrated interventions were implemented by the health, agriculture, water resources development, land and resources, and forestry sectors from 2005 to 2014, including chemotherapy for infected individuals, health education, management of the source of Schistosoma japonicum infection, and intermediate host snail control. The annual number of schistosomiasis patients, S. japonicum infection in humans, bovines and Oncomelania hupensis snails, and water infectivity were observed to assess the effectiveness of the multidisciplinary, integrated approach for the elimination of schistosomiasis.ResultsThere was a tendency towards a gradual decline in both the number of schistosomiasis cases and the prevalence of S. japonicum human infection across the study period from 2005 through 2014. No S. japonicum human infection was detected since 2012, and no acute infection was seen since 2006. During the study period, no infection was found in bovines, and a 0.03% overall infection rate was observed in O. hupensis snails. Since 2009, no infected snails were identified, and the area of both snail habitats and infected snail habitats appeared a reduction over the study period. Following the 3-year multidisciplinary, integrated control, infection control was achieved, and transmission control was achieved after 6-year implementation, with all infected snails and water infectivity eliminated; in addition, the 10-year implementation resulted in interruption of schistosomiasis transmission in the study site in 2014.ConclusionsThe results of the present 10-year longitudinal study demonstrate that the multidisciplinary, integrated approach is effective for the elimination of schistosomiasis as a public health problem in the lower reaches of the Yangtze River, China.Electronic supplementary materialThe online version of this article (doi:10.1186/s40249-017-0270-x) contains supplementary material, which is available to authorized users.

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Enhancing collaboration between China and African countries for schistosomiasis control

Cited by 49 publications

References 61 publications

Approaches being used in the national schistosomiasis elimination programme in China: a review

Approaches being used in the national schistosomiasis elimination programme in China: a review

Towards interruption of schistosomiasis transmission in sub-Saharan Africa: developing an appropriate environmental surveillance framework to guide and to support ‘end game’ interventions

A multidisciplinary, integrated approach for the elimination of schistosomiasis: a longitudinal study in a historically hyper-endemic region in the lower reaches of the Yangtze River, China from 2005 to 2014

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