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Epidemiological profile of Clonorchis sinensis infection in one community, Guangdong, People's Republic of China.

Qian MB, Chen YD, Fang YY, Tan T, Zhu TJ, Zhou CH, Wang GF, Xu LQ, Zhou XN - Parasit Vectors (2013)

Bottom Line: Out of 228 persons eating raw fish, 160 did it more frequently at restaurants, the proportion of which varied in different populations, showing 25.00%, 54.88% and 80.28% in the children, adult females and adult males, respectively.Different interventions need to be adopted in different populations.Chemotherapy should be prioritized in the adults, especially the adult males.

View Article: PubMed Central - HTML - PubMed

Affiliation: National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, People's Republic of China.

ABSTRACT

Background: Clonorchiasis caused by ingesting improperly prepared fish ranks among the most important but still neglected food-borne parasitic diseases, especially in the People's Republic of China (P.R. China). To promote the implementation of interventions efficiently, the demonstration of an epidemiological profile of Clonorchis sinensis infection is essential in hyper-epidemic areas.

Methods: In one community with higher levels of economic development in Guangdong province, P.R. China, villagers were motivated to provide stool samples for examining helminth eggs. Then, those infected with C. sinensis completed the structured questionnaire including demographical characteristics, knowledge and behavior.

Results: A total of 293 villagers infected with C. sinensis participated in questionnaire investigation. Among them, 94.54% were adult and 93.17% were indigenous. The geometric mean of C. sinensis eggs per gram of feces in the children, adult females and adult males was 58, 291 and 443, respectively. The divergence between knowledge and behavior in the adults, especially the adult males, was shown. Out of 228 persons eating raw fish, 160 did it more frequently at restaurants, the proportion of which varied in different populations, showing 25.00%, 54.88% and 80.28% in the children, adult females and adult males, respectively.

Conclusions: Different interventions need to be adopted in different populations. Chemotherapy should be prioritized in the adults, especially the adult males. In addition, health education targeting the children, is essential and may play a crucial role in controlling clonorchiasis in the long term. In order to successfully control clonorchiasis, intervention in the restaurant should not be overlooked in some endemic areas.

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Variance of knowledge in different populations. A: Knowledge on hearing of clonorchiasis. B: Knowledge on knowing the transmission route of clonorchiasis. C: Knowledge on knowing the harm of clonorchiasis. D: Knowledge on knowing both the transmission route and harm of clonorchiasis.
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Figure 1: Variance of knowledge in different populations. A: Knowledge on hearing of clonorchiasis. B: Knowledge on knowing the transmission route of clonorchiasis. C: Knowledge on knowing the harm of clonorchiasis. D: Knowledge on knowing both the transmission route and harm of clonorchiasis.

Mentions: Because of the insignificant difference of knowledge between the boys and girls (Fisher’s exact test, p = 1.000, in all items on knowledge), they were combined again here. The difference of having heard of clonorchiasis was significant among the children, adult females and adult males (x2 =16.557, p < 0.001; Figure 1A) and so was the difference in knowledge of the transmission route (x2 =15.542, p < 0.001; Figure 1B), knowledge about the harm (x2 =7.089, p = 0.029; Figure 1C) and knowing both the transmission route and harm (x2 =6.249, p = 0.044; Figure 1D).


Epidemiological profile of Clonorchis sinensis infection in one community, Guangdong, People's Republic of China.

Qian MB, Chen YD, Fang YY, Tan T, Zhu TJ, Zhou CH, Wang GF, Xu LQ, Zhou XN - Parasit Vectors (2013)

Variance of knowledge in different populations. A: Knowledge on hearing of clonorchiasis. B: Knowledge on knowing the transmission route of clonorchiasis. C: Knowledge on knowing the harm of clonorchiasis. D: Knowledge on knowing both the transmission route and harm of clonorchiasis.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3750548&req=5

Figure 1: Variance of knowledge in different populations. A: Knowledge on hearing of clonorchiasis. B: Knowledge on knowing the transmission route of clonorchiasis. C: Knowledge on knowing the harm of clonorchiasis. D: Knowledge on knowing both the transmission route and harm of clonorchiasis.
Mentions: Because of the insignificant difference of knowledge between the boys and girls (Fisher’s exact test, p = 1.000, in all items on knowledge), they were combined again here. The difference of having heard of clonorchiasis was significant among the children, adult females and adult males (x2 =16.557, p < 0.001; Figure 1A) and so was the difference in knowledge of the transmission route (x2 =15.542, p < 0.001; Figure 1B), knowledge about the harm (x2 =7.089, p = 0.029; Figure 1C) and knowing both the transmission route and harm (x2 =6.249, p = 0.044; Figure 1D).

Bottom Line: Out of 228 persons eating raw fish, 160 did it more frequently at restaurants, the proportion of which varied in different populations, showing 25.00%, 54.88% and 80.28% in the children, adult females and adult males, respectively.Different interventions need to be adopted in different populations.Chemotherapy should be prioritized in the adults, especially the adult males.

View Article: PubMed Central - HTML - PubMed

Affiliation: National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Shanghai, People's Republic of China.

ABSTRACT

Background: Clonorchiasis caused by ingesting improperly prepared fish ranks among the most important but still neglected food-borne parasitic diseases, especially in the People's Republic of China (P.R. China). To promote the implementation of interventions efficiently, the demonstration of an epidemiological profile of Clonorchis sinensis infection is essential in hyper-epidemic areas.

Methods: In one community with higher levels of economic development in Guangdong province, P.R. China, villagers were motivated to provide stool samples for examining helminth eggs. Then, those infected with C. sinensis completed the structured questionnaire including demographical characteristics, knowledge and behavior.

Results: A total of 293 villagers infected with C. sinensis participated in questionnaire investigation. Among them, 94.54% were adult and 93.17% were indigenous. The geometric mean of C. sinensis eggs per gram of feces in the children, adult females and adult males was 58, 291 and 443, respectively. The divergence between knowledge and behavior in the adults, especially the adult males, was shown. Out of 228 persons eating raw fish, 160 did it more frequently at restaurants, the proportion of which varied in different populations, showing 25.00%, 54.88% and 80.28% in the children, adult females and adult males, respectively.

Conclusions: Different interventions need to be adopted in different populations. Chemotherapy should be prioritized in the adults, especially the adult males. In addition, health education targeting the children, is essential and may play a crucial role in controlling clonorchiasis in the long term. In order to successfully control clonorchiasis, intervention in the restaurant should not be overlooked in some endemic areas.

Show MeSH
Related in: MedlinePlus