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Investigation on the status of Clonorchis sinensis infection in Xinfeng County, Jiangxi Province, China
Online published: 2020-11-12
Supported by
Science and Technology Project of Jiangxi Health Commission(20166051)
According to the geographical location and eating habits of residents, Xinfeng County was divided into areas of eating and non-eating raw fish. From each area, two townships were randomly selected, and then one administrative village was selected from each township for conducting the survey. Fecal samples of examinees were examined using the modified Kato thick smear method (two slide-reading/one sample), and questionnaire survey was performed for the residents to collect information on the awareness of clonorchiasis knowledge and the behavior of eating raw freshwater fish. During 2014-2015, a total of 1 376 villagers were investigated, and the total infection rate of C. sinesis was 11.70% (161/1 376). The infection rate in the area of eating raw fish (21.18%, 122/576) was significantly higher than in the area of non-eating raw fish (4.88%, 39/800) (P < 0.01); in males (19.07%, 131/687) than in females (4.35%, 30/689) (P < 0.01). The infection rate was highest at age 70 years and above among all age groups (22.50%, 18/80), and showed a trend of increasing with age (P < 0.01). Among groups of different education levels, the infection rate was highest among people with the education of junior college and higher (39.53%, 17/43), and showed a trend of higher with increased education (P < 0.01). Among different occupations, the public servants had the highest infection rate(51.02%, 25/49), and there was a significant difference among the different occupation groups (P < 0.01). A total of 283 people were surveyed with questionnaire, of them 69.61% (197/283) knew that eating raw fish would cause clonorchiasis, and 30.74% (87/283) of the respondents had the behavior of eating raw freshwater fish and shrimps. The area of eating raw fish had a significantly lower awareness rate (66.00%, 72/120) and a significantly higher behavioral rate (40.00%, 48/120) compared with the area of non-eating raw fish (76.69%, 125/163; 23.93%, 39/1 63). The results suggest that the Xinfeng County of Ganzhou City, Jiangxi Province is an area with frequent occurrence of clonorchiasis. Health education and comprehensive prevention and control measures of population-based deworming should be actively carried out to change the habits of eating raw fish and reduce the infection rate of C. sinensis among the villagers.
Qi HUANG , Wei-sheng JIANG , Yue-kang YAN , Zhe CHEN , Yan-feng XIONG , Yu-hua YANG , Shou-shan WANG . Investigation on the status of Clonorchis sinensis infection in Xinfeng County, Jiangxi Province, China[J]. CHINESE JOURNAL OF PARASITOLOGY AND PARASITIC DISEASES, 2020 , 38(5) : 670 -673 . DOI: 10.12140/j.issn.1000-7423.2020.05.025
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