No abstract available.
Clonorchis sinensis*

The survival ability of the larvae of Clonorchis sinensis in raw fish dish prepared by traditional culinary method in Nghia Lac commune, Nghia Hung District, Nam Dinh province and the larvae of Paragonimus heterotrimus in grilled crabs processed in Khanh Hoa commune, Luc Yen district, Yen Bai province was investigated. In this raw fish dish, 93-95% of the microcerca of Clonorchis sinensis and in this grilled crab, 23.3-65% of microcerca had been living
Clonorchis sinensis ; Fishes ; Paragonimus

Clonorchis sinensis, the most widespread liver fluke of the parasite localized in liver and biliary tract, threats at least 19 millions of people in the world. The distribution of C. sinensis over almost all China (except the West-Northern area) and Taiwan, Korea, Japan and Northern regions of Vietnam. Since the first record of C. sinensis in Vietnam last century, up to date the disease has been reported from at least 12 provinces of the country. At the certain epidemiological foci, the rate of C. sinensis infection has not decreased but, in inverse, it seems to have tendency to increase. This review follows the worldwide and local literature in the domain to provide a brief summary on the distribution and status of C. sinensis infection and in the world, particularly in Vietnam.
Clonorchis sinensis ; Epidemiology

A region of mitochondrial cytochrome oxidase 1 gene (coxl) for Clonorchis sp samples from the provinces of Thanh Hoa and Nam Dinh, and Opisthorchis sp from human in Phu Yen province, Vietnam was analyzed by PCR. Nucleotide sequence of these coxl fragments was used to compare with Opisthorchis viverrini, strain Khon Ken (Thailand) and Clonorchis sinensis sequences originated from China and Korea. The results revealed that nucleotide sequence of Opisthorchis sp from Vietnam had absolute homology to O. viverrini (Thailand) but different from C. sinensis (from China and Korea). Clonorchis sp from Vietnam was similar with Clonorchis sinensis from China and Korea. Opisthorchis sp isolated in Phu Yen is, thus, molecularly indentified as Opsithorchis viverrini and Clonochis sp in Thanh Hoa and Nam Dinh is Clonorchis sinensis. Two species are different in morphology and molecular level.
Mitochondria ; Clonorchis sinensis

The survival ability of the larve of Clonorchis sinensis in raw fish dish prepared by traditional culinary method in NghiaLac commune, NghiaHung District,NamDinh province and the larve of Paragonomus heterotrimus in grilled crabs processed in KhanhHoa commune, LucYen district, YenBai province was investigated..In this raw fish dish, 93-95% of the microcerca of Clonorchis sinensis and in this grilled crab, 23,3-65% of microcerca had been living
Fishes ; Clonorchis sinensis ; epidemiology

A survey concerning the infestation of clonorchis sinensis in human was conducted in 4 communes of Ninh Binh and Nam Dinh provinces, from each, 100 households with their members of above 6 years old of age were enrolled randomly. Results showed a prevalence of 31.3 – 37.3% in Nam Dinh and 22.5% in Ninh Binh epidemic areas. The prevalence in male subjects was higher than in female (45.5 –47.6% versus 10.9 – 26.1%). The age group of 40-49 years old had had the highest prevalence (51.9%). There, 35.9 – 80.4% of people had consumed raw fish.
Opisthorchis ; Epidemiology ; Clonorchis sinensis

No abstract available.
Clonorchiasis* ; Clonorchis sinensis

4826 stool samples collected from 5 communes were examined by Kato- Katz technique. The infection rate of clonorchis sinensis was 33,9% in average (22,5% to 37,3%). The infection rate in male was higher than in female by 4 times and highest in 40- 49 age group (51,9%). The habit of eating raw fish is very common in this area (55,6%- 80,4%). The adult worms from patients in these study sites were identified as clonorchis sinensis
Clonorchis sinensis ; epidemiology ; Fishes ; Helminths

PURPOSE: The goal of this study was to analyze the prevalence of Clonorchis sinensis infection in people living within 5 km of the Youngsan River basin, to develop an educational program to prevent the infection, and to examine the effects of the educational program. METHODS: This study employed a one group pretest-posttest design, the subjects were 384. This study was conducted from November 20, 2008 to June 16, 2009. The results were analyzed with the SPSS/WIN 18.0 program. RESULTS: Of the residents, 5.7% were infected with Clonorchis sinensis and the knowledge level about the prevention of Clonorchis sinensis was improved significantly from 9.75+/-5.12 points before the education to 15.05+/-2.43 points after the education. One of the important effects was that the willingness to eat raw fresh-water fish was reduced after the education. CONCLUSION: Based on the results of this study, a continuous research needs to be conducted on how education and knowledge level-up change people's living attitudes for the prevention of Clonorchis sinensis infection and the reduction of the infection rate in the future.
Clonorchis sinensis* ; Education ; Intention ; Korea* ; Prevalence* ; Rivers*

Thin layer immunoassay was carried out to demonstrate antibodies against Clonorchis sinensis in sera from clonorchiasis patients. Saline extract of adult worm was used as antigen. TIA technique was performed as described earlier by Elwing et al. (1976), but agarose was used instead of agar. The antibody titres of sera in 60 clonorchiasis cases were higher than that of 10 healthy and 10 amoebiasis cases, but not different comparing with that of 10 paragonimiasis cases. Antibody titres in clonorchiasis gave no differences according to the age, sex, EPG in feces, eosinophilia degree of blood, level of alkaline phosphatase and transaminase (SGOT, SGPT) in sera. It is suggested that, after evaluation, the TIA might supplement or be used as an alternative to other immunodiagnostic tests already in use for the diagnosis of clonorchiasis.
parasitology-helminth-trematoda ; Clonorchis sinensis ; clonorchiasis ; immunology