Construction and application of surveillance and response systems for parasitic diseases in China, led by NIPD-CTDR

Hao, Yufan; Wang, Qiang; Cao, Chen; Tian, Tian; Zhu, Zelin; Xu, Jing; Zhou, Shui-Sen; Wu, Wei; Chen, Ying-Dan; Zhang, Yi; Chen, Jiaxu; Shi-zhu, LI; Xiao, Ning; Zhou, Xiao‐Nong

doi:10.1016/bs.apar.2020.04.001

Cited by 4 publications

(3 citation statements)

References 33 publications

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“…These cases can be linked to the recent growth in investment in and exchanges between China and African countries that has resulted in increases in imported NTDs in China [12][13][14]. Recommendations have been made to ensure adequate treatment of future possible cases of HAT and other NTDs in China [15].…”

Section: Non-endemic Countries Of Diagnosismentioning

confidence: 99%

Human African trypanosomiasis cases diagnosed in non-endemic countries (2011–2020)

et al. 2022

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Background Sleeping sickness, or human African trypanosomiasis (HAT), is transmitted by tsetse flies in endemic foci in sub-Saharan Africa. Because of international travel and population movements, cases are also occasionally diagnosed in non-endemic countries. Methodology/Principal findings Antitrypanosomal medicines to treat the disease are available gratis through the World Health Organization (WHO) thanks to a public-private partnership, and exclusive distribution of the majority of them enables WHO to gather information on all exported cases. Data collected by WHO are complemented by case reports and scientific publications. During 2011–2020, 49 cases of HAT were diagnosed in 16 non-endemic countries across five continents: 35 cases were caused by Trypanosoma brucei rhodesiense, mainly in tourists visiting wildlife areas in eastern and southern Africa, and 14 cases were due to T. b. gambiense, mainly in African migrants originating from or visiting endemic areas in western and central Africa. Conclusions/Significance HAT diagnosis in non-endemic countries is rare and can be challenging, but alertness and surveillance must be maintained to contribute to WHO’s elimination goals. Early detection is particularly important as it considerably improves the prognosis.

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Section: Non-endemic Countries Of Diagnosismentioning

confidence: 99%

Human African trypanosomiasis cases diagnosed in non-endemic countries (2011–2020)

et al. 2022

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“…China has made tremendous progress towards malaria elimination—China has been certified as malaria-free country by WHO on June 30, 2021. With a robust and improved malaria surveillance and response system (SRS) network both domestically and internationally, China is able to not only secure and maintain a malaria-free future within its border but also has huge potential to contribute to global malaria elimination efforts [ 8 , 9 ]. This is a review of the international network on SRS led by China and its implications for malaria elimination.…”

Section: Introductionmentioning

confidence: 99%

Role of international network on surveillance and response system leading to malaria elimination: China’s engagement in global health

Huang

Duan

et al. 2022

Infect Dis Poverty

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China has accumulated multiple practices and experiences in building and enhancing malaria surveillance and response system. As China’s engagement into global health has gathered stronger momentum than ever, China together with the Swiss Tropical and Public Health Institute and WHO has organised five sessions of the International Forum on Surveillance-Response System Leading to Tropical Diseases Elimination during 2012–2020, in which malaria elimination has always been one of the hottest topics. In this study, the roles of international network on the surveillance and response system were explored to achieve a global malaria-free goal. China’s approach to malaria elimination has demonstrated significance of global collaboration on taking joint prevention and control, and building a worldwide institutional-based network.

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“…Large-scale schistosomiasis surveillance programs have been launched to facilitate the national schistosomiasis elimination program in China [7]. Data captured from the national schistosomiasis surveillance programs will provide insight into endemic schistosomiasis, an understanding of the prevalence of S. japonicum infections in humans and livestock, as well as the endemic foci of Oncomelania hupensis in China [8,9].…”

Section: Introductionmentioning

confidence: 99%

Spatio-Temporal Heterogeneity of Schistosomiasis in China Based on Multi-stage, Continuous Downscaling of Sentinel Monitoring

Gong¹,

Feng²,

Luo³

et al. 2021

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Background: There is a continuous decline in the prevalence of schistosomiasis and the number of Schistosoma japonicum infections in humans and livestock in China. However, there are a large number of factors that have not been resolved and which may contribute to future transmission of schistosomiasis. These include a range of sources for S. japonicum infection, difficulty in management of S. japonicum sources of infection, frequent emergence and re-emergence of Oncomelania hupensis snail habitats, and the problematic elimination of snail habitats. These factors challenge progress towards the elimination of schistosomiasis in China.Methods: Based on multi-stage continuous downscaling of sentinel monitoring, county-based schistosomiasis surveillance data were captured from the national schistosomiasis surveillance sites of China from 2005 to 2019. The data included S. japonicum infections in humans, livestock, and O. hupensis. The spatio-temporal trends for schistosomiasis were detected using a Joinpoint regression model, with a standard deviational ellipse (SDE) tool, which determined the central tendency and dispersion in spatial distribution of schistosomiasis. Further, spatio-temporal clusters of S. japonicum infections in humans, livestock, and O. hupensis were evaluated by Poisson model. Results: The prevalence of S. japonicum human infections was reduced from 2.06% to zero based on the national schistosomiasis surveillance sites of China during the period from 2005 to 2019, with a reduction from 9.42% to zero for the prevalence of S. japonicum infections in livestock, and from 0.26% to zero for the prevalence of S. japonicum infections in O. hupensis. The decline in prevalence of S. japonicum infections in humans, livestock, and O. hupensis was statistically significant from 2005 to 2019 (P < 0.01). There was an exception to the decline in S. japonicum infections in livestock during the period from 2008 to 2012. Using an SDE tool, schistosomiasis-affected regions were reduced yearly from 2005 to 2014 in the endemic provinces of Hunan, Hubei, Jiangxi, and Anhui, as well as in the Poyang and Dongting Lake regions. Poisson model revealed 11 clusters of S. japonicum human infections, six clusters of S. japonicum infections in livestock, and nine clusters of S. japonicum infections in O. hupensis. The clusters of human infection were found to be highly consistent with clusters of S. japonicum infections in livestock and O. hupensis. These clusters were in the five provinces of Hunan, Hubei, Jiangxi, Anhui, and Jiangsu, as well as along the middle and lower reaches of the Yangtze River. Humans, livestock, and O. hupensis infections with S. japonicum were mainly concentrated in the north of the Hunan Province, south of the Hubei Province, north of the Jiangxi Province, and southwestern portion of Anhui Province. In the two mountainous provinces of Sichuan and Yunnan; human, livestock, and O. hupensis infections with S. japonicum were mainly concentrated in the northwestern portion of the Yunnan Province, the Daliangshan area in the south of Sichuan Province, and the hilly regions in the middle of Sichuan Province. Conclusions: This study demonstrate a significant spatio-temporal heterogeneity of schistosomiasis in China. A remarkable decline in endemic schistosomiasis was observed between 2005 and 2019. However, there continues to be a long-term risk of schistosomiasis transmission in local areas, with high-risk areas primarily located in the Poyang Lake and Dongting Lake regions, with frequent acute S. japonicum infections. Using a One Health approach, further reinforcement of an integrated schistosomiasis control strategy, with an emphasis on the sources of S. japonicum infection, is required to facilitate the elimination of schistosomiasis in China by 2030.

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Construction and application of surveillance and response systems for parasitic diseases in China, led by NIPD-CTDR

Cited by 4 publications

References 33 publications

Human African trypanosomiasis cases diagnosed in non-endemic countries (2011–2020)

Human African trypanosomiasis cases diagnosed in non-endemic countries (2011–2020)

Role of international network on surveillance and response system leading to malaria elimination: China’s engagement in global health

Spatio-Temporal Heterogeneity of Schistosomiasis in China Based on Multi-stage, Continuous Downscaling of Sentinel Monitoring

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