Prevalence and spatial distribution patterns of human echinococcosis at the township level in Sichuan Province, China

Abstract Background Echinococcosis is a global zoonotic parasitic disease caused by Echinococcus larvae. This disease is highly endemic in Sichuan Province, China. This study investigates the prevalence and spatial distribution characteristics of human echinococcosis at the township level in Sichuan...

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Main Authors: Wei He (Author), Li-Ying Wang (Author), Wen-Jie Yu (Author), Guang-Jia Zhang (Author), Bo Zhong (Author), Sha Liao (Author), Qi Wang (Author), Rui-Rui Li (Author), Liu Yang (Author), Ren-Xin Yao (Author), Yang Liu (Author), Zeli Danba (Author), Sheng-Chao Qin (Author), Shi-An Wang (Author), Yan-Xia Wang (Author), Yan Huang (Author), Qian Wang (Author)
Format: Book
Published: BMC, 2021-06-01T00:00:00Z.
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042 |a dc 
100 1 0 |a Wei He  |e author 
700 1 0 |a Li-Ying Wang  |e author 
700 1 0 |a Wen-Jie Yu  |e author 
700 1 0 |a Guang-Jia Zhang  |e author 
700 1 0 |a Bo Zhong  |e author 
700 1 0 |a Sha Liao  |e author 
700 1 0 |a Qi Wang  |e author 
700 1 0 |a Rui-Rui Li  |e author 
700 1 0 |a Liu Yang  |e author 
700 1 0 |a Ren-Xin Yao  |e author 
700 1 0 |a Yang Liu  |e author 
700 1 0 |a Zeli Danba  |e author 
700 1 0 |a Sheng-Chao Qin  |e author 
700 1 0 |a Shi-An Wang  |e author 
700 1 0 |a Yan-Xia Wang  |e author 
700 1 0 |a Yan Huang  |e author 
700 1 0 |a Qian Wang  |e author 
245 0 0 |a Prevalence and spatial distribution patterns of human echinococcosis at the township level in Sichuan Province, China 
260 |b BMC,   |c 2021-06-01T00:00:00Z. 
500 |a 10.1186/s40249-021-00862-z 
500 |a 2049-9957 
520 |a Abstract Background Echinococcosis is a global zoonotic parasitic disease caused by Echinococcus larvae. This disease is highly endemic in Sichuan Province, China. This study investigates the prevalence and spatial distribution characteristics of human echinococcosis at the township level in Sichuan Province, geared towards providing a future reference for the development of precise prevention and control strategies. Methods Human prevalence of echinococcosis was evaluated using the B-ultrasonography diagnostic method in Sichuan Province between 2016 and 2019. All data were collected, collated, and analyzed. A spatial distribution map was drawn to intuitively analyze the spatial distribution features. Eventually, the spatial autocorrelation was specified and local indicators of spatial association (LISA) clustering map was drawn to investigate the spatial aggregation of echinococcosis at the township level in Sichuan Province. Results The prevalence of echinococcosis in humans of Sichuan Province was 0.462%, among which the occurrence of cystic echinococcosis (CE) was 0.221%, while that of alveolar echinococcosis (AE) was 0.244%. Based on the results of the spatial distribution map, a predominance of echinococcosis in humans decreased gradually from west to east and from north to south. The Global Moran's I index was 0.77 (Z = 32.07, P < 0.05), indicating that the prevalence of echinococcosis in humans was spatially clustered, exhibiting a significant spatial positive correlation. Further, the findings of local spatial autocorrelation analysis revealed that the "high-high" concentration areas were primarily located in some townships in the northwest of Sichuan Province. However, the "low-low" concentration areas were predominantly located in some townships in the southeast of Sichuan Province. Conclusions Our findings demonstrated that the prevalence of echinococcosis in humans of Sichuan Province follows a downward trend, suggesting that the current prevention and control work has achieved substantial outcomes. Nevertheless, the prevalence in humans at the township level is widely distributed and differs significantly, with a clear clustering in space. Therefore, precise prevention and control strategies should be formulated for clusters, specifically strengthening the "high-high" clusters at the township level. Graphic Abstract 
546 |a EN 
690 |a Echinococcosis 
690 |a Prevalence 
690 |a Spatial autocorrelation 
690 |a Sichuan 
690 |a China 
690 |a Infectious and parasitic diseases 
690 |a RC109-216 
690 |a Public aspects of medicine 
690 |a RA1-1270 
655 7 |a article  |2 local 
786 0 |n Infectious Diseases of Poverty, Vol 10, Iss 1, Pp 1-13 (2021) 
787 0 |n https://doi.org/10.1186/s40249-021-00862-z 
787 0 |n https://doaj.org/toc/2049-9957 
856 4 1 |u https://doaj.org/article/667096d221f543b180c48bc97f16e34d  |z Connect to this object online.