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Article ; Online: Cost-effectiveness analysis of the integrated control strategy for schistosomiasis japonica in a lake region of China

Ling-Ling Wu / He-Hua Hu / Xia Zhang / Xiao-Nong Zhou / Tie-Wu Jia / Can Wang / Zhong Hong / Jing Xu

Infectious Diseases of Poverty, Vol 10, Iss 1, Pp 1-

a case study

2021 Volume 10

Abstract: Abstract Background Schistosomiasis japonica remains an important public health concern due to its potential to cause severe outcomes and long-term sequelae. An integrated control strategy implemented in the Peoples’ Republic of China has been shown to ... ...

Abstract	Abstract Background Schistosomiasis japonica remains an important public health concern due to its potential to cause severe outcomes and long-term sequelae. An integrated control strategy implemented in the Peoples’ Republic of China has been shown to be effective to control or interrupt the transmission of schistosomiasis. The objective of this study is to estimate the disease burden of schistosomiasis and assess the cost-effectiveness of the integrated control strategy focused on different major interventions at three stages for schistosomiasis control in a lake setting, to provide reference for policy making or planning. Methods Annual cost data of schistosomiasis control during 2009–2019 were obtained from the control program implementers in Jiangling County, Hubei Province, China. Economic costs are provided in constant 2009 Chinese Yuan (CNY). Epidemiological data of schistosomiasis were collected from the Jiangling county station for schistosomiasis control. Disease burden of schistosomiasis was assessed by calculating years of life lost (YLLs) owing to premature death, years lived with disability (YLDs) and disability-adjusted life years (DALYs). DALYs were calculated as the sum of YLLs and YLDs. We then conducted a rudimentary cost-effectiveness analysis by determining the ratio by dividing the difference between the average cost of integrated control strategy at transmission control (2013–2016) or transmission interruption (2017–2019) and the average cost at stage of infection control (2009–2012) with the difference between the DALYs of schistosomiasis at different control stages. Descriptive statistics on the costs and DALYs were used in the analysis. Results The total economic costs for schistosomiasis control in Jiangling County from 2009 to 2019 were approximately CNY 606.88 million. The average annual economic costs for schistosomiasis prevention and control at stages of infection control (2009–2012), transmission control (2013–2016), and transmission interruption (2017–2019) were approximately ...
Keywords	Schistosomiasis ; Integrated control ; Cost-effectiveness ; Disability-adjusted life years ; China ; Infectious and parasitic diseases ; RC109-216 ; Public aspects of medicine ; RA1-1270
Subject code	630
Language	English
Publishing date	2021-05-01T00:00:00Z
Publisher	BMC
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Soil-transmitted helminth reinfection after drug treatment

Tie-Wu Jia / Sara Melville / Jürg Utzinger / Charles H King / Xiao-Nong Zhou

PLoS Neglected Tropical Diseases, Vol 6, Iss 5, p e

a systematic review and meta-analysis.

2012 Volume 1621

Abstract: Soil-transmitted helminth (STH) infections (i.e., Ascaris lumbricoides, hookworm, and Trichuris trichiura) affect more than a billion people. Preventive chemotherapy (i.e., repeated administration of anthelmintic drugs to at-risk populations), is the ... ...

Abstract	Soil-transmitted helminth (STH) infections (i.e., Ascaris lumbricoides, hookworm, and Trichuris trichiura) affect more than a billion people. Preventive chemotherapy (i.e., repeated administration of anthelmintic drugs to at-risk populations), is the mainstay of control. This strategy, however, does not prevent reinfection. We performed a systematic review and meta-analysis to assess patterns and dynamics of STH reinfection after drug treatment.We systematically searched PubMed, ISI Web of Science, EMBASE, Cochrane Database of Systematic Reviews, China National Knowledge Infrastructure, WanFang Database, Chinese Scientific Journal Database, and Google Scholar. Information on study year, country, sample size, age of participants, diagnostic method, drug administration strategy, prevalence and intensity of infection pre- and posttreatment, cure and egg reduction rate, evaluation period posttreatment, and adherence was extracted. Pooled risk ratios from random-effects models were used to assess the risk of STH reinfection after treatment. Our protocol is available on PROSPERO, registration number: CRD42011001678.From 154 studies identified, 51 were included and 24 provided STH infection rates pre- and posttreatment, whereas 42 reported determinants of predisposition to reinfection. At 3, 6, and 12 months posttreatment, A. lumbricoides prevalence reached 26% (95% confidence interval (CI): 16-43%), 68% (95% CI: 60-76%) and 94% (95% CI: 88-100%) of pretreatment levels, respectively. For T. trichiura, respective reinfection prevalence were 36% (95% CI: 28-47%), 67% (95% CI: 42-100%), and 82% (95% CI: 62-100%), and for hookworm, 30% (95% CI: 26-34%), 55% (95% CI: 34-87%), and 57% (95% CI: 49-67%). Prevalence and intensity of reinfection were positively correlated with pretreatment infection status.STH reinfections occur rapidly after treatment, particularly for A. lumbricoides and T. trichiura. Hence, there is a need for frequent anthelmintic drug administrations to maximize the benefit of preventive chemotherapy. Integrated control approaches emphasizing health education and environmental sanitation are needed to interrupt transmission of STH.
Keywords	Arctic medicine. Tropical medicine ; RC955-962 ; Public aspects of medicine ; RA1-1270
Subject code	610
Language	English
Publisher	Public Library of Science (PLoS)
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: [Approaches used for assessment of the burden of advanced schistosomiasis japonica: a comparative study].

Yi-Ting, Li / Xin-Ting, Cai / Jin-Hua, Zhu / Le-Ping, Sun / Hai-Yong, Hua / Li-Guang, Tian / Ting, Feng / Shi-Zhu, Li / Guang-Hui, Ren / Tie-Wu, Jia

Zhongguo xue xi chong bing fang zhi za zhi = Chinese journal of schistosomiasis control

2019 Volume 31, Issue 3, Page(s) 280–284

Abstract: Objective: To compare the approaches used for the assessment of disability adjust life years (DALYs) for advanced schistosomiasis japonica, so as to provide scientific evidence for accurate assessment of the burden of advanced schistosomiasis japonica.!# ...

Abstract	Objective: To compare the approaches used for the assessment of disability adjust life years (DALYs) for advanced schistosomiasis japonica, so as to provide scientific evidence for accurate assessment of the burden of advanced schistosomiasis japonica. Methods: The patients with advanced schistosomiasis japonica receiving treatment and assistance programs in Hunan Province in 2017 were enrolled, and the years lived with disability (YLD) for the patients with advanced schistosomiasis japonica was calculated using the common global burden of disease (GBD) estimation method, the modified GBD method with addition of common syndromes of advanced schistosomiasis japonica, and the quality of life assessment method. Results: The YLDs of patients with advanced schistosomiasis japonica, the mean YLDs per capita, and the percentages of YLD were 673.94, 728.77 person-years and 1 761.99 person-years; 0.181, 0.196 person-years and 0.474 person-years; and 10.61, 11.48 person-years per 100 thousand persons and 27.75 person-years per 100 thousand persons with the common GBD method, modified GBD method and the quality of life method, respectively. The YLDs of the patients with advanced schistosomiasis japonica in Hunan Province estimated with the modified GBD method and the quality of life method were 8.14% and 2.61 times higher than that with the common GBD method. Of the major symptoms included in the calculation, the 5 symptoms with the greatest contribution to the burden of advanced schistosomiasis japonica included ascites, moderate anemia, severe anemia, diarrhea and hematochezia. Conclusions: The quality of life method may more comprehensively assess the YLDs in patients with advanced schistosomiasis japonica than the common and modified GBD methods.
MeSH term(s)	China/epidemiology ; Disabled Persons ; Global Burden of Disease ; Humans ; Quality of Life ; Quality-Adjusted Life Years ; Schistosomiasis japonica/epidemiology ; Schistosomiasis japonica/pathology
Language	Chinese
Publishing date	2019-09-16
Publishing country	China
Document type	Comparative Study ; Journal Article
ISSN	1005-6661
ISSN	1005-6661
DOI	10.16250/j.32.1374.2019079
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: [Current status and transmission risks of oversea imported schistosomiasis in China].

Jian-Feng, Zhang / Li-Yong, Wen / Jing, Xu / You-Sheng, Liang / Xiao-Lan, Yan / Guang-Hui, Ren / Tie-Wu, Jia / Wei, Wang / Xiao-Nong, Zhou

Zhongguo xue xi chong bing fang zhi za zhi = Chinese journal of schistosomiasis control

2019 Volume 31, Issue 1, Page(s) 26–32

Abstract: With the acceleration of the process of global integration, China's international exchanges and cooperation with other countries have been further increased. The personnel exchange has led to the frequent occurrence of imported schistosomiasis from ... ...

Abstract	With the acceleration of the process of global integration, China's international exchanges and cooperation with other countries have been further increased. The personnel exchange has led to the frequent occurrence of imported schistosomiasis from abroad, which seriously endangers people's health. This paper reviews the prevalence and transmission risks of oversea imported schistosomiasis, providing the reference for the entry and exit health quarantine and prevention and control of schistosomiasis in China.
MeSH term(s)	China/epidemiology ; Communicable Diseases, Imported/epidemiology ; Communicable Diseases, Imported/prevention & control ; Communicable Diseases, Imported/transmission ; Humans ; Prevalence ; Schistosomiasis/epidemiology ; Schistosomiasis/prevention & control ; Schistosomiasis/transmission
Language	Chinese
Publishing date	2019-04-23
Publishing country	China
Document type	Journal Article ; Review
ISSN	1005-6661
ISSN	1005-6661
DOI	10.16250/j.32.1374.2019021
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: [Study on value of IHA in diagnosis of schistosomiasis japonica].

Jie, Zhou / Wei, Guan / Fu-Rong, Wei / Yao, Ruan / Sheng-Ming, Li / Jing, Xu / Tie-Wu, Jia / Xiao-Nong, Zhou

Zhongguo xue xi chong bing fang zhi za zhi = Chinese journal of schistosomiasis control

2016 Volume 28, Issue 4, Page(s) 375–380

Abstract: Objective: To evaluate the value of indirect hemagglutination test (IHA) in schistosomiasis diagnosis.: Methods: The literature concerned schistosomiasis diagnosis with IHA in the databases of Medline, CNKI, VIP and Wanfang Data from 1982 to 2014 was ...

Abstract	Objective: To evaluate the value of indirect hemagglutination test (IHA) in schistosomiasis diagnosis. Methods: The literature concerned schistosomiasis diagnosis with IHA in the databases of Medline, CNKI, VIP and Wanfang Data from 1982 to 2014 was collected and evaluated. Results: Totally 21 articles which were satisfied with the research criteria were analyzed with the Meta-analysis method. The IHA method had high value in schistosomiasis diagnosis, the AUC Conclusions: The diagnosis value of IHA in field evaluation is less than that in laboratory. In the process of the elimination of schistosomiasis, developing a new and higher sensitive reagent in schistosomiasis diagnosis is needed.
MeSH term(s)	Hemagglutination Tests/methods ; Humans ; Schistosomiasis japonica/diagnosis
Language	Chinese
Publishing date	2016-05-31
Publishing country	China
Document type	Journal Article ; Meta-Analysis
ISSN	1005-6661
ISSN	1005-6661
DOI	10.16250/j.32.1374.2015252
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: [Epidemiological characteristics of echinococcosis death cases in China from 2008 to 2016].

Tian, Tian / Chun-Li, Cao / Wei-Ping, Wu / Tie-Wu, Jia / Men-Bao, Qian / Yu-Wan, Hao / Ze-Lin, Zhu / Qiang, Wang / Shi-Zhu, Li / Xiao-Nong, Zhou

Zhongguo xue xi chong bing fang zhi za zhi = Chinese journal of schistosomiasis control

2018 Volume 30, Issue 3, Page(s) 282–288

Abstract: Objective: To understand the epidemiological characteristics of death cases of echinococcosis in China from 2008 to 2016, so as to provide an important reference for the prevention and control of echinococcosis.: Methods: The death information ... ...

Abstract	Objective: To understand the epidemiological characteristics of death cases of echinococcosis in China from 2008 to 2016, so as to provide an important reference for the prevention and control of echinococcosis. Methods: The death information registration and management system data were selected to analyze the epidemiological characteristics of the death cases of echinococcosis. The data were analyzed by SPSS 21.0 and the map was drawn by ArcGIS 10.1 software. Results: From 2008 to 2016, a total of 367 death cases of echinococcosis were reported in China, and the number of deaths in turn was 33, 30, 21, 32, 35, 54, 55, and 81 in each year, with an annual average crude mortality of 129.29 /10 Conclusions: Since 2014, the death cases of echinococcosis in China have been increasing year by year, indicating that the prevention and treatment of echinococcosis is still very serious. The causes for the rise of the fatality rate remain to be further studied.
MeSH term(s)	Adult ; Aged ; China/epidemiology ; Echinococcosis/epidemiology ; Echinococcosis/mortality ; Echinococcosis/prevention & control ; Female ; Humans ; Incidence ; Male ; Middle Aged ; Risk Factors
Language	Chinese
Publishing date	2018-07-17
Publishing country	China
Document type	Journal Article
ISSN	1005-6661
ISSN	1005-6661
DOI	10.16250/j.32.1374.2018064
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: [Global burden and challenges of parasitic diseases in Africa].

Yi-Ting, Li / Guang-Hui, Ren / You-Sheng, Liang / Kun, Yang / Le-Ping, Sun / Shi-Zhu, Li / Shan, Lü / Tie-Wu, Jia

Zhongguo xue xi chong bing fang zhi za zhi = Chinese journal of schistosomiasis control

2018 Volume 30, Issue 2, Page(s) 226–231

Abstract: Parasitic diseases are common infectious diseases closely related to poverty, which are mainly endemic in the tropical and subtropical regions. Africa is the major epidemic area of parasitic diseases, and the global burden of malaria and schistosomiasis ... ...

Abstract	Parasitic diseases are common infectious diseases closely related to poverty, which are mainly endemic in the tropical and subtropical regions. Africa is the major epidemic area of parasitic diseases, and the global burden of malaria and schistosomiasis is over 85% in Africa. This paper reviews the disease burden, regional distribution and control strategies of the main parasitic diseases in Africa, in order to promote the prevention and control of parasitic diseases in this area.
MeSH term(s)	Africa/epidemiology ; Cost of Illness ; Malaria/epidemiology ; Malaria/prevention & control ; Parasitic Diseases/epidemiology ; Parasitic Diseases/prevention & control ; Poverty ; Schistosomiasis/epidemiology ; Schistosomiasis/prevention & control
Language	Chinese
Publishing date	2018-04-17
Publishing country	China
Document type	Journal Article ; Review
ISSN	1005-6661
ISSN	1005-6661
DOI	10.16250/j.32.1374.2018020
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Eco-social determinants of Schistosoma japonicum infection supported by multi-level modelling in Eryuan county, People's Republic of China

Yang, Kun / Guo-Jing Yang / Hong-Jun Li / Jürg Utzinger / Peter Steinmann / Robert Bergquist / Tie-Wu Jia / Xiao-Hua Wu / Xiao-Nong Zhou / Xue-Wen Shi

Acta tropica. 2015 Jan., v. 141

2015

Abstract: Schistosomiasis remains of considerable public health concern in many tropical and subtropical regions of the world, including the People's Republic of China (P.R. China). The effectiveness of schistosomiasis control interventions are, among other ... ...

Abstract	Schistosomiasis remains of considerable public health concern in many tropical and subtropical regions of the world, including the People's Republic of China (P.R. China). The effectiveness of schistosomiasis control interventions are, among other factors, governed by the social-ecological context. However, eco-social determinants of schistosomiasis are poorly understood, particularly at the household or village levels. In the current study, residents in 26 villages of Eryuan county, Yunnan province, P.R. China, were screened for Schistosoma japonicum infection with a serological assay that was followed by stool examination for sero-positive individuals. Bayesian multilevel models with spatial random effects were employed to profile the S. japonicum infection risk based on known transmission sites of S. japonicum that are scattered across individual land parcels in this part of the country. The key risk factors identified with this approach were the absence of a sanitary stall house for livestock and presence of living and infected intermediate host snails in close proximity. We conclude that a spatially explicit Bayesian multilevel approach can deepen our understanding of eco-social determinants that govern schistosomiasis transmission at a small geographical scale.
Keywords	fecal examination ; intermediate hosts ; livestock ; models ; public health ; risk factors ; Schistosoma japonicum ; schistosomiasis ; seroprevalence ; snails ; subtropics ; villages ; China
Language	English
Dates of publication	2015-01
Size	p. 391-398.
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	210415-5
ISSN	1873-6254 ; 0001-706X
ISSN (online)	1873-6254
ISSN	0001-706X
DOI	10.1016/j.actatropica.2014.04.013
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Molluscicidal effectiveness of Luo-Wei, a novel plant-derived molluscicide, against Oncomelania hupensis, Biomphalaria alexandrina and Bulinus truncatus

Tie-Wu Jia / Wei Wang / Le-Ping Sun / Shan Lv / Kun Yang / Neng-Min Zhang / Xi-Bao Huang / Jian-Bing Liu / Han-Cheng Liu / Rui-Hua Liu / Fathia A. Gawish / Mohamed R. Habib / Mohamed A. El-Emam / Charles H. King / Xiao-Nong Zhou

Infectious Diseases of Poverty, Vol 8, Iss 1, Pp 1-

2019 Volume 10

Abstract: Abstract Background Control of snail intermediate hosts has been proved to be a fast and efficient approach for interrupting the transmission of schistosomiasis. Some plant extracts have shown obvious molluscicidal activity, and a new compound Luo-Wei, ... ...

Abstract	Abstract Background Control of snail intermediate hosts has been proved to be a fast and efficient approach for interrupting the transmission of schistosomiasis. Some plant extracts have shown obvious molluscicidal activity, and a new compound Luo-Wei, also named tea-seed distilled saponin (TDS), was developed based on the saponins extracted from Camellia oleifera seeds. We aimed to test the molluscicidal activity of 4% TDS against the intermediate host snails in China and Egypt, and evaluate its environmental safety to non-target organisms. Methods In the laboratory, Oncomelania hupensis, Biomphalaria alexandrina and Bulinus truncatus were exposed to 4% TDS, and the median lethal concentration (LC50) was estimated at 24, 48 and 72 h. In the field, snail mortalities were assessed 1, 2, 3 and 7 d post-immersion with 2.5 g/m3 4% TDS and 1, 3, 7 and 15 d post-spraying with 5 g/m2 4% TDS. In addition, the acute toxicity of 4% TDS to Japanese quail (Coturnix japonica), zebrafish (Brachydanio rerio) and freshwater shrimp (Macrobrachium nipponense) was assessed by estimations of LC50 or median lethal dose (LD50). Results In the laboratory, the LC50 values of 4% TDS for O. hupensis were 0.701, 0.371 and 0.33 mg/L at 24, 48 and 72 h, respectively, and 4% TDS showed a 1.975 mg/L 24 h LC50 against B. alexandrina, and a 1.396 mg/L 24 h LC50 against B. truncatus. Across all study regions, the pooled mortalities of O. hupensis were 72, 86, 94 and 98% at 1, 2, 3 and 7 d, following field immersion of 4% TDS at a dose of 2.5 g/m3, and were 69, 77, 85 and 88% at 1, 3, 7 and 15 d, following field spraying at 5 g/m2, respectively. 4% TDS had moderate toxicity to Japanese quail (7 d LD50 > 60 mg/kg) and to shrimp (96 h LC50 = 6.28 mg/L; 95% CI: 3.53–11.2 mg/L), whereas its toxicity to zebrafish was high (96 h LC50 = 0.15 mg/L; 95% CI: 0.14–0.17 mg/L). Conclusions 4% TDS is active against O. hupensis, B. alexandrina and B. truncatus under laboratory and field conditions, and it may be a candidate molluscicide of plant origin.
Keywords	Schistosomiasis ; Luo-Wei ; Plant-derived molluscicide ; Oncomelania hupensis ; Biomphalaria alexandrina ; Bulinus truncatus ; Infectious and parasitic diseases ; RC109-216 ; Public aspects of medicine ; RA1-1270
Language	English
Publishing date	2019-03-01T00:00:00Z
Publisher	BMC
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Corrections to

Infectious Diseases of Poverty, Vol 8, Iss 1, Pp 1-

Molluscicidal effectiveness of Luo-Wei, a novel plant-derived molluscicide, against Oncomelania hupensis, Biomphalaria alexandrina and Bulinus truncatus

2019 Volume 1

Abstract: ...

Abstract	.
Keywords	Infectious and parasitic diseases ; RC109-216 ; Public aspects of medicine ; RA1-1270
Language	English
Publishing date	2019-06-01T00:00:00Z
Publisher	BMC
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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