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Surveillance on schistosomiasis in five provincial-level administrative divisions of the People’s Republic of China in the post-elimination era

BACKGROUND: The People’s Republic of China (P. R. China) has made significant progress on schistosomiasis control. Among the 12 provincial-level administrative divisions (PLADs) with schistosomiasis endemic in P. R. China, Guangdong, Shanghai, Fujian, Guangxi and Zhejiang PLADs (following as five PL...

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Autores principales: Guo, Jing-Yi, Xu, Jing, Zhang, Li-Juan, Lv, Shan, Cao, Chun-Li, Li, Shi-Zhu, Zhou, Xiao-Nong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: BioMed Central 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7528395/
https://www.ncbi.nlm.nih.gov/pubmed/33004080
http://dx.doi.org/10.1186/s40249-020-00758-4
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author Guo, Jing-Yi
Xu, Jing
Zhang, Li-Juan
Lv, Shan
Cao, Chun-Li
Li, Shi-Zhu
Zhou, Xiao-Nong
author_facet Guo, Jing-Yi
Xu, Jing
Zhang, Li-Juan
Lv, Shan
Cao, Chun-Li
Li, Shi-Zhu
Zhou, Xiao-Nong
author_sort Guo, Jing-Yi
collection PubMed
description BACKGROUND: The People’s Republic of China (P. R. China) has made significant progress on schistosomiasis control. Among the 12 provincial-level administrative divisions (PLADs) with schistosomiasis endemic in P. R. China, Guangdong, Shanghai, Fujian, Guangxi and Zhejiang PLADs (following as five PLADs) had successively eliminated schistosomiasis during 1985–1995. However, consolidation of the schistosomiasis elimination in these five PLADs remains challenging. In the current study, we sought to understand the epidemic situation in these post-elimination areas and their surveillance capabilities on schistosomiasis. METHODS: Annual data reflecting the interventions and surveillance on human beings, cattle and snails based on county level from 2005 to 2016 were collected through the national schistosomiasis reporting system and the data were analyzed to understand the epidemic status of schistosomiasis in the five PLADs. A standardized score sheet was designed to assess the surveillance capacity for schistosomiasis of selected disease control agencies in five PLADs and ten counties. Assessment on surveillance capacity including schistosomiasis diagnostic skills, identification of snails’ living and infection status and knowledge about schistosomiasis and its control were made. Descriptive analysis was used to analyze the epidemic status and evaluation results on surveillance capacities. RESULTS: The assessments showed that no local cases in humans and cattle or infected snail were found in these five PLADs since 2005. However, from 2005 to 2016, a total of 221 imported cases were detected in Zhejiang, Shanghai and Fujian, and 11.98 hm(2) of new snail habitats were found in Zhejiang, Shanghai and Guangxi. In addition, snail infestation reoccurred in 247.55 hm(2) of former snail habitats since 2011. For the surveillance capacity assessment, the accuracy rate of IHA and MHT were 100 and 89.3%, respectively. All participants could judge the living status of snails accurately and 98.1% on the infection status of snails. The accuracy rate of the questionnaire survey was 98.0%. CONCLUSIONS: Elimination of schistosomiasis was consolidated successfully in five PLADs of P. R. China due to effective and strong post-elimination surveillance. Comprehensive consolidation strategies should be focused on the elimination of residual snails and the prevention of imported infection sources to consolidate the achievements of schistosomiasis control.
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spelling pubmed-75283952020-10-02 Surveillance on schistosomiasis in five provincial-level administrative divisions of the People’s Republic of China in the post-elimination era Guo, Jing-Yi Xu, Jing Zhang, Li-Juan Lv, Shan Cao, Chun-Li Li, Shi-Zhu Zhou, Xiao-Nong Infect Dis Poverty Research Article BACKGROUND: The People’s Republic of China (P. R. China) has made significant progress on schistosomiasis control. Among the 12 provincial-level administrative divisions (PLADs) with schistosomiasis endemic in P. R. China, Guangdong, Shanghai, Fujian, Guangxi and Zhejiang PLADs (following as five PLADs) had successively eliminated schistosomiasis during 1985–1995. However, consolidation of the schistosomiasis elimination in these five PLADs remains challenging. In the current study, we sought to understand the epidemic situation in these post-elimination areas and their surveillance capabilities on schistosomiasis. METHODS: Annual data reflecting the interventions and surveillance on human beings, cattle and snails based on county level from 2005 to 2016 were collected through the national schistosomiasis reporting system and the data were analyzed to understand the epidemic status of schistosomiasis in the five PLADs. A standardized score sheet was designed to assess the surveillance capacity for schistosomiasis of selected disease control agencies in five PLADs and ten counties. Assessment on surveillance capacity including schistosomiasis diagnostic skills, identification of snails’ living and infection status and knowledge about schistosomiasis and its control were made. Descriptive analysis was used to analyze the epidemic status and evaluation results on surveillance capacities. RESULTS: The assessments showed that no local cases in humans and cattle or infected snail were found in these five PLADs since 2005. However, from 2005 to 2016, a total of 221 imported cases were detected in Zhejiang, Shanghai and Fujian, and 11.98 hm(2) of new snail habitats were found in Zhejiang, Shanghai and Guangxi. In addition, snail infestation reoccurred in 247.55 hm(2) of former snail habitats since 2011. For the surveillance capacity assessment, the accuracy rate of IHA and MHT were 100 and 89.3%, respectively. All participants could judge the living status of snails accurately and 98.1% on the infection status of snails. The accuracy rate of the questionnaire survey was 98.0%. CONCLUSIONS: Elimination of schistosomiasis was consolidated successfully in five PLADs of P. R. China due to effective and strong post-elimination surveillance. Comprehensive consolidation strategies should be focused on the elimination of residual snails and the prevention of imported infection sources to consolidate the achievements of schistosomiasis control. BioMed Central 2020-10-01 /pmc/articles/PMC7528395/ /pubmed/33004080 http://dx.doi.org/10.1186/s40249-020-00758-4 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
spellingShingle Research Article
Guo, Jing-Yi
Xu, Jing
Zhang, Li-Juan
Lv, Shan
Cao, Chun-Li
Li, Shi-Zhu
Zhou, Xiao-Nong
Surveillance on schistosomiasis in five provincial-level administrative divisions of the People’s Republic of China in the post-elimination era
title Surveillance on schistosomiasis in five provincial-level administrative divisions of the People’s Republic of China in the post-elimination era
title_full Surveillance on schistosomiasis in five provincial-level administrative divisions of the People’s Republic of China in the post-elimination era
title_fullStr Surveillance on schistosomiasis in five provincial-level administrative divisions of the People’s Republic of China in the post-elimination era
title_full_unstemmed Surveillance on schistosomiasis in five provincial-level administrative divisions of the People’s Republic of China in the post-elimination era
title_short Surveillance on schistosomiasis in five provincial-level administrative divisions of the People’s Republic of China in the post-elimination era
title_sort surveillance on schistosomiasis in five provincial-level administrative divisions of the people’s republic of china in the post-elimination era
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7528395/
https://www.ncbi.nlm.nih.gov/pubmed/33004080
http://dx.doi.org/10.1186/s40249-020-00758-4
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