Zhongguo xue xi chong bing fang zhi za zhi = Chinese journal of schistosomiasis control · 2015
[Epidemiological investigation on fascioliasis and its risk factors in population of Binchuan County, Yunnan Province].
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Chen Feng, Liu Yu-hua, Yang Hui, Duan Yii-chun, Yang Jing, Zhao Yin-jiao, Hao Ming-ming, Pan Li-juan, Deng Yin-ju, Shi Ya-nan, Chen Fu-ling, Zhang Jian-guo, Luo Jia-jun
Аннотация
OBJECTIVE: To understand the infection status of Fasciola and related risk factors in population of Binchuan County, Yunnan Province.
METHODS: In February and March, 2014, 6 natural villages from 2 administrative villages in Zhoucheng Town were selected as investigated sites, and the permanent residents aged ≥ 5 years were examined by ELISA for the serum antibody detection, and then the positive ones were examined by Kato-Katz technique and the hatching method for Fasciola egg detection. Meanwhile, the fascioliasis cases that checked out by the above methods were further surveyed, and the residents who with the same gender, similar age and negative results in the blood examination were selected as the controls, then the risk factors were explored through a case control study.
RESULTS: Totally 1 207 people were included in the blood examination, and 36 positives were found with a positive rate of 2.98%. Though the differences between the positive rates of the serum antibody in people with different genders and age were not statistically significant (χ2 = 1.686, 7.106, both P > 0.05) , those between the rates of people in different administrative villages and natural villages were statistically significant (χ2 = 4.103, 13.181, both P < 0.05). Two cases were determined as positives in fecal examinations with a positive rate of 6.45% (2/31), among which, 1 case was newly discovered. The case control study showed that OR values of eating out- purchased cold dish (4.30), raw mint (1.22) , raw leek (4.30) and drinking unboiled-water (3.75) were relatively higher, but all of them were not statistically significant (χ2 = 0.524, 0.046, 0.524, 1.571, all P > 0.05).
CONCLUSIONS: There is still sporadic Fasciola infection in Binchuan County. Eating raw vegetables and drinking unboiled water which are contaminated by Fasciola metacercariae may be the infection routes of local people, and to find out the exact entrance way is the key points for the infection control.
METHODS: In February and March, 2014, 6 natural villages from 2 administrative villages in Zhoucheng Town were selected as investigated sites, and the permanent residents aged ≥ 5 years were examined by ELISA for the serum antibody detection, and then the positive ones were examined by Kato-Katz technique and the hatching method for Fasciola egg detection. Meanwhile, the fascioliasis cases that checked out by the above methods were further surveyed, and the residents who with the same gender, similar age and negative results in the blood examination were selected as the controls, then the risk factors were explored through a case control study.
RESULTS: Totally 1 207 people were included in the blood examination, and 36 positives were found with a positive rate of 2.98%. Though the differences between the positive rates of the serum antibody in people with different genders and age were not statistically significant (χ2 = 1.686, 7.106, both P > 0.05) , those between the rates of people in different administrative villages and natural villages were statistically significant (χ2 = 4.103, 13.181, both P < 0.05). Two cases were determined as positives in fecal examinations with a positive rate of 6.45% (2/31), among which, 1 case was newly discovered. The case control study showed that OR values of eating out- purchased cold dish (4.30), raw mint (1.22) , raw leek (4.30) and drinking unboiled-water (3.75) were relatively higher, but all of them were not statistically significant (χ2 = 0.524, 0.046, 0.524, 1.571, all P > 0.05).
CONCLUSIONS: There is still sporadic Fasciola infection in Binchuan County. Eating raw vegetables and drinking unboiled water which are contaminated by Fasciola metacercariae may be the infection routes of local people, and to find out the exact entrance way is the key points for the infection control.