Publications by authors named "Cai-wen Ruan"

Objective: To diagnose and treat the first imported active case of Plasmodium knowlesi infection in China.

Methods: The clinical information of the patient was collected. Microscopy of blood smear was conducted after Giemsa staining.

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Background: Enterobius vermicularis infection is a prevalent intestinal parasitic disease in children. In this study, we explored the epidemiological status and risk factors for E. vermicularis infection in children in southern China.

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Objective: To explore the suitable chemotherapy measures in different Clonorchis sinensis infectiosity endemic areas.

Methods: The interventional groups and control groups were set up in the heavy, moderate and light C. sinensis infectiosity areas in Guangdong Province, respectively.

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Objective: To understand the status of Enterobius vermicularis infection of children in Huadu District, Guangzhou City so as to provide the evidence for improving the control work.

Methods: In 2012, 24 kindergartens and 24 primary schools were selected as survey sites by the stratified random sampling method and 200 or more children aged below 10 years per site were investigated for the Enterobius vermicularis infection by the cellophane tape method. The relevant influencing factors (environment conditions, sanitary facilities and management system, and health habits of families and individuals) were surveyed with questionnaire, and all the data were analyzed statistically with the Excel software.

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Objective: To analyze the features of malaria epidemic in Guangdong Province in 2011 so as to provide the evidence for the elimination of malaria in Guangdong Province.

Methods: The data from the Disease Reporting Information System of Chinese Center for Disease Control and Prevention were analyzed with the descriptive epidemiological method for the epidemiological characteristics of malaria in Guangdong Province in 2011.

Results: A total of 96 malaria cases were reported in Guangdong Province in 2011, with an annual mean incidence of 0.

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Objective: To understand the endemic situation of schistosomiasis in Guangdong Province.

Methods: The surveillance of Oncomelania hupensis snails and infectious sources was carried out in the former endemic areas, and the surveillance data were statistically analyzed from 2004 to 2009 according to the national and provincial surveillance protocols.

Results: From 2004 to 2009, an area of 927.

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Objective: To investigate the natural infection of Angiostrongylus cantonensis in Guangdong Province, and to provide the scientific evidence for control measures.

Methods: The investigation was carried out in 56 villages of 28 towns of 28 counties/districts in East Guangdong, West Guangdong, the mountain area of North Guangdong and Peal River Delta of the Province from 2005 to 2010. The rodents were captured with live trap and the species identified.

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Objective: To understand the distribution of Angiostrongylus cantonensis foci in Guangdong Province for making surveillance program.

Methods: Survey sites were chosen by strata sampling according to different geographic locations. Totally 22 survey sites were selected in four regions: East Guangdong, West Guangdong, North Guangdong and the Pearl River Delta.

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Objective: To make a survey on the possible imported cases with microfilaremia from a recently identified outbreak focus in Fuchuan County of Guangxi Region.

Methods: Moving people as temporary laborers from Guangxi and periphery residents were screened by thick blood smears for microfilariae and ELISA for specific IgG4 in Sept 2007.

Results: 989 persons in cities/districts of Nansha, Panyu, Shantou and Zhongshan were investigated.

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Objective: To investigate the current prevalence of Clonorchis sinensis infection in the known endemic areas of China.

Methods: According to different endemic level and river system, the lamination stochastic group sampling was carried out in 27 Provinces/Municipalities/Autonomous Regions (P/M/A) from 2002 to 2004. Eggs in stool were examined by modified Kato-Katz thick smears method.

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