河南省开封地区临床病人肠道寄生虫感染调查

目的了解开封地区人肠道寄生虫感染状况，尤其是机会性致病原虫和人兽共患寄生虫的流行情况。方法采用饱和蔗糖溶液漂浮法、甲醛-乙酸乙酯-改良抗酸染色法和卢戈碘液染色法对该地区门诊和住院病人6093份粪便样品进行了检查。结果检出肠道寄生虫8种，总感染率为1．49％，首次摸清了人环孢子虫感染的流行状况，感染率为0．85％；蓝氏贾第虫和粪类圆线虫感染率次之，分别为0．16％和0．15％；蛔虫、人隐孢子虫和阿米巴原虫感染率均为0．10％．钩虫感染率为0．08％，结肠小袋纤毛虫感染率为0．02％，混合感染感染率为0．05％。结论开封地区临床病人肠道寄生虫感染率较低，但仍应进一步开展健康教育，普及卫生知识，提高自我保健意识和自我保健能力，预防寄生虫病的发生和流行。

Prevalence of Intestinal Parasite Infection in Kaifeng City, Henan Province

Objective To evaluate the prevalence of human intestinal parasite infection in Kaifeng, especially the infection by opportunistic pathogenic protozoa and zoonotic parasites. Methods 6,093 fecal specimens were analyzed by Sheather＇s sugar flotation, formalin-ethyl acetate-modified acid-fast staining and Lugol＇s iodine-solution staining methods. Results Eight different species of intestinal parasites were identified and the overall infection rate was 1.49%. This was the first study on the prevalence of Cyclospora cayetanensis infection in humans, with a infection rate of 0.85%. The infection rate of Giardia duodenalis and Strongyloides stercoralis was 0.16% and 0.15%, respectively. The infection rate of Ascaridae, Cryptosporidium hominis and Entamoeba was 0.1%. For the Hookworm and Balantidium coli, the infection rate was 0.08% and 0.02%, respectively. Multiple infection rate was 0.05%. Conclusion Infection by intestinal parasites in Kaifeng city was low. However, further health education is needed for the disease prevention.