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1.
Article in Chinese | WPRIM | ID: wpr-704225

ABSTRACT

Objective To investigate the knowledge and practice of residents about schistosomiasis prevention and control in endemic areas of Jingzhou City,Hubei Province after the disease transmission being controlled,so as to provide the valuable in-formation for formulating an efficient health education and intervention strategy.Methods The residents were selected by using the cluster sampling method and investigated with questionnaires in Jiangling County and Gong'an County,Jingzhou City,Hu-bei Province,and the data were analyzed by using the descriptive analysis method,Chi-square tests and logistic regression.Re-sults In a total,826 available questionnaires were obtained with 100% of valid rate.Among them,97.0% of the interviewee knew schistosomiasis,and 86.3% knew that the infection happened by contacting water containing cercariae.The residents in el-der age(41-84 years)had higher awareness rates than the residents in lower age(6-17 years),about the regions of epidemic area(χ 2=57.860),infection route of schistosomiasis(χ 2=87.045),advanced schistosomiasis symptoms(χ 2=27.268)and On-comelania hupensis being as intermediate host(χ 2=55.856)(all P<0.05).The males had higher awareness rates of epidemic areas than the females(χ2=13.442,P<0.05).For personal behavior,36.6% of the interviewee had experience of contacting lake or pond water many times a day,and 66.5% had the willingness to participate in schistosomiasis health education.Conclu-sion In the investigation areas,Jiangling County and Gong'an County,the awareness rates of the residents about schistosomia-sis prevention and control are higher,and we should strengthen the health education and behavior intervention,especially in the students of middle and primary schools to help them have the self-protection ability efficiently.

2.
Article in Chinese | WPRIM | ID: wpr-704218

ABSTRACT

Objective To investigate the changes of serum anti-schistosome antibody titers in schistosomiasis japonica pa-tients after treatment,in order to provide the evidence for formulating the schistosomiasis surveillance program in marshland and lake regions.Methods Upon prospective cohort study,the stool examination positive schistosomiasis patients and blood exami-nation positive suspected patients(the titer was more than 1:80,including 1:80)were selected as the research objects in Jian-gling County in 2014,and they received the 2-day praziquantel therapy.Half year,one year and two years after the treatment, their blood samples and fecal samples were collected for IHA anti-schistosome antibody detections and schistosome egg and mira-cidium detections. Results In 2014,the stool examination positives were 251,and the majority of them were over 41 years old,accounting for 93.23%(234/251);581 cases of high antibody titers were detected by the IHA method,and the majority of them were over 41 years old,accounting for 89.16%(518/581).Half year,one year and two years after the treatment,among the stool examination positives,the negative conversion rates of stool positives were 99.60%(250/251),100%(239/239)and 100%(234/234)respectively and the negative conversion rates of antibody positives were 21.91%(55/251),64.11%(156/239)and 76.89%(193/234)respectively.In the high antibody titer positives,the negative conversion rates were 38.04%(221/581),64.11%(359/560),and 77.86%(429/551)respectively,Half year,one year and two years after the treatment.There were statistically significant differences among the antibody negative conversion rates by χ2test(χ2=77.538,183.412,25.469 respectively,all P<0.001).The geometric mean values of antibody titers of different durations between 2 groups were analyzed by 2-independent-samples T test,and the geometric mean values of antibody titers between the 2 groups were different before the treatment(t=23.576,P<0.01),but the geometric mean values of antibody titers between the 2 groups were not different 6 months,1 year and 2 years after the treatment(t=-0.046,1.165, -0.132,P=0.964, 0.245,0.895 respectively). Conclu-sions The levels of serum anti-schistosome antibody degrade slowly in schistosomiasis japonica patients after the treatment, and the results of IHA tests cannot distinguish the current schistosome infection from previous schistosome infection.Therefore, it is necessary to develop the specific diagnostic technology for schistosome infection in order to meet the need of monitoring.

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