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Prevalence of Clonorchis sinensis infections in freshwater fish in mainland China: A meta-analysis / 中国血吸虫病防治杂志
Article in Chinese | WPRIM | ID: wpr-920740
Responsible library: WPRO
ABSTRACT
Objective To understand the real prevalence of Clonorchis sinensis infections in the freshwater fish in mainland China, so as to provide insights into clonorchiasis control and detection of freshwater fish. Methods All literatures reporting the prevalence of C. sinensis infections in the freshwater fish, the second intermediate host of the parasite, were jointly retrieved in Chinese and English electronic databases from January 1, 2010 to December 31, 2020, including Wanfang Data, CNKI, PubMed, Web of Science, Embase and Cochrane Library. All studies were screened based on inclusion and exclusion criteria, and the quality of all enrolled literatures was evaluated. The pooled prevalence of C. sinensis infections in freshwater fish and its 95% confidence interval (CI) were estimated using the software Stata version 15.0, and subgroup analyses were performed to investigate the region-, season- and sample source-specific pooled prevalence of C. sinensis infections in freshwater fish. In addition, the sensitivity and publication bias of all included studies were analyzed. Results A total of 40 eligible literatures were included in this study, including 37 Chinese literatures and 3 English literatures, and there were 10 high-quality literatures, 27 moderate-quality literatures and 3 low-quality literatures. A total of 53 species containing 37 959 freshwater fish were reported in these 40 studies, and 73.58% (39/53) of freshwater fish species were identified with C. sinensis infections. Meta-analysis showed 23.5% [95% CI (0.19, 0.28)] pooled prevalence of C. sinensis infections in freshwater fish in mainland China, and subgroup analyses higher prevalence of C. sinensis infections in freshwater fish in northeastern China [35.7%, 95% CI (0.22, 0.50)] than in central [25.9%, 95% CI (0.04, 0.48)] and southern China [20.6%, 95% CI (0.09, 0.32)], higher prevalence of C. sinensis infections in freshwater fish sampled in spring [44.1%, 95% CI (0.35, 0.53)] than in autumn [6.7%, 95% CI (0.05, 0.08)] and summer [3.3%, 95% CI (−0.01, 0.07)], and higher prevalence of C. sinensis infections in freshwater fish sampled from natural water [25.2%, 95% CI (0.17, 0.33)] than from retail trades [22.2%, 95% CI (0.17, 0.28)] and breeding chain [12.3%, 95% CI (0.03, 0.22)]. However, all included studies had a publication bias with a low sensitivity. Conclusions The prevalence of C. sinensis infections is high in freshwater fish in mainland China, and there are still challenges for clonorchiasis control. Reinforcement of health education, diagnostics development and food safety supervision is recommended in future clonorchiasis control programs.

Full text: Available Index: WPRIM (Western Pacific) Type of study: Systematic reviews Language: Chinese Journal: Chinese Journal of Schistosomiasis Control Year: 2021 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Type of study: Systematic reviews Language: Chinese Journal: Chinese Journal of Schistosomiasis Control Year: 2021 Type: Article