山丘型地区各季节人群血吸虫病流行特征的研究

Study on the human schistosoma infection pattern in different seasons in a hilly area of Nanling county

目的了解现阶段山丘型地区不同季节人群血吸虫感染规律,为制定符合该类地区特点的血吸虫病防治对策提供科学依据。方法分别在6月、9月下旬和12月上旬用单纯随机抽样的方法在南陵县奚滩村5周岁以上常住居民中随机抽取500人,利用Kato-Katz法进行1粪3检,以判断春、夏、秋不同季节人群血吸虫感染情况。结果不同性别、不同年龄、不同文化程度人群在春、夏、秋各季节内感染率之间差异均无显著性;在春、秋两季内不同职业人群之间感染率差异也无显著性,但夏季农民感染率显著高于学生。结论在夏季,职业是影响山丘型地区人群血吸虫感染率差异的重要因素。

Objective To understand the pattern of human infection with schistosoma japonicum in different seasons in the hilly areas under the present rural social and economic conditions so as to provide a theoretical foundation for the formulation of Schistosomiasis control strategy. Methods About 500 permanent people aged older than 5 in Xitan village were randomly selected in the last ten-day period of June and September, and the first ten days of December, respectively. Their stool specimen were examined with the method of Kato-Katz （three slides were made from one specimen）,so as to get situation of infection in the spring,summer and autumn,respectively . Results There was no significant difference of human infection rate between different sexes, different ages and different educational levels in different seasons, and there was also no significant difference of human infection rate between different occupations in spring and autumn, but the infection rate of farmer in Summer was significantly higher than that of students. Conclusion occupation was the important factor which led to the infection rate difference in summer.