ABSTRACT
Objective To understand the current prevalence of clonorchiasis in Jiangxi Province. Methods A survey was performed according to the scheme of the 3rd Principal Human Parasites of Jiangxi Province. Based on the ecological regions,a stratified cluster sampling method was applied by the economic and geographic situation. In rural areas,the investigation of C. si?nensis was carried out together with the soil?transmitted helminths investigation,and in the urban areas,the random cluster sam?pling method was applied for the C. sinensis investigation. There were 92 survey sites from 32 counties. The eggs of C. sinensis in stool were examined by Kato?Katz technique,and health knowledge was also investigated by questionnaires in some people at the same time. Results A total of 23 606 sample residents were investigated,and 138 were found infected with C. sinensis, with the infection rate of 0.58%. Light infection was found in most of them. Totally 124 C. sinensis infected persons focused in Xinfeng County,and only a few of infected people scattered in the other counties. In Xinfeng County,851 residents were investi?gated. Among them,the infected people were found in all the age groups except the 0?year age group. The highest infection rate appeared in the 70? years group(24.00%). The male infection rate was 20.29%,which was higher than that of the female (6.25%),showing a statistically significant difference(P<0.01). The infection rate was highest in the population who received high school or technical secondary school education(31.48%). For the occupation distribution,the infection rate was highest in public officers(39.39%). The questionnaire survey showed that the infection rate in the populations in Xinfeng County who had the history of eating raw fish or raw shrimp was 33.15%. Conclusions The distribution of C. sinensis infection presents a region?al aggregation in Xinfeng County,but in other areas,the distribution is sporadic. It is necessary to continue to carry out the para?sitic disease screening,and in Xinfeng County,it is necessary to strengthen the comprehensive prevention and control interven?tion.
ABSTRACT
Objective To understand the capability of parasitic disease diagnosis among professionals from the clinic labora?tory of Class A tertiary hospitals in Jiangxi Province. Methods The teams that took part in the competition were formed from 20 Class A tertiary hospitals,with 2 contestants per team. The competition contents included written examination and skill opera?tion. The written examination involved the life cycle of parasites,immunological basis,detecting techniques,etiological diagno?sis etc.,and the skill operation involved making and dying thin and thick blood smears,making Kato?Katz’s fecal thick smears, as well as microscopic examinations of smears. Results A total of 40 participants took part in the competition. Their total aver?age score was 97.3±22.4 with the pass rate of 15.0%,in which the mean score of theoretical knowledge was 56.6±12.8 with the pass rate of 52.5%,and the mean score of skill operation was 40.8±12.4 with the pass rate of 5.0%. In the written examination, the scoring rate of the life cycle of soil?transmitted helminths was the highest(90.0%),and the rate of the basic knowledge of food?borne parasites was the lowest(31.5%). Both the pass rates of blood smear making and examination were higher than those of Kato?Katz’s thick smears,and the differences were statistically significant( both P<0.05). The detection rates of Plasmodi?um vivax,Plasmodium falciparum,Plasmodium ovale and negative slides of the contestants were 38.8%,45.0%,35.0%and 25.0% respectively. As to the microscopic examination of helminth eggs,the detection rate of Trichuris trichiura egg was the highest(87.5%),and the rate of the Sparganum mansoni egg was the lowest(2.5%). The scores of Kato?Katz’s thick smear making and examination of the contestants from the provincial level hospitals were higher than those from the city level hospitals (both P<0.05),and the score of those from teaching hospitals in Kato?Katz’s thick smear making was higher than that of those from non?teaching hospitals(P < 0.05). Conclusions The technique level of professionals from the clinic laboratory of the Class A tertiary hospitals cannot meet the needs of the diagnosis of parasitic diseases in Jiangxi Province ,which should arouse the attention of the health authorities and hospitals.
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Objective To investigate the endemic situation of human Toxoplasma gondii infection in Nanchang City in 2014 and analyze the influencing factors,so as to provide the evidence for control measures. Methods The high?risk population of T. gondii infection in Nanchang City was collected as an experiment group,and a control group was settled with the ratio of 1∶1. The serum tests and epidemiology surveys were conducted simultaneously,and the influencing factors were analyzed. Results The total positive rate of human T. gondii was 5.17%(124/2 400)among the whole population in Nanchang City in 2014. The positive rate was 7.50%(90/1 200)in the experiment group and 2.18%(34/1 200)in the control group,and the difference was significant(χ2=26.668,P<0.05). The results of univariate analysis indicated that different dietary habits and health habits were closely related to the infection of T. gondii(χ2=16.522,64.954,both P<0.05). The result of Logistic analysis showed that the risk factors of T. gondii infection were occupation,educational levels,raising cats,contacting animals or raw meat,and eating raw or uncooked beef. Conclusion The high risk population of T. gondii infection is the key population of the toxoplas?mosis control. Unhealthy dietary and living habits are key influencing factors of toxoplasmosis,and the related health education and surveillance work should be strengthened.
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GPS was used in the snail survey of Nuanhuping marshland in Poyang Lake region and its application value was discussed. The results suggest that GPS which can measure the marshland area and survey area at real-time and draw electronic maps of snail situation rapidly, could realize the electronic and image management of the data from snail survey and provide more accurate information to the department in charge of schistosomiasis control.