了解厦门市人群土源性线虫感染情况,为制定土源性线虫病防治规划提供科学依据。2012-2017年根据《全国第三次人体重点寄生虫病调查方案》要求,采用分层整群抽样的方法,抽取厦门市岛外的翔安、同安、集美、海沧4个区和岛内的湖里、思明2个区,每个区按东、西、南、北4个不同地理方位,各随机抽取4个乡镇（街道）,每个乡镇（街道）再抽取4~5个行政村（社区）为调查点,每个点调查50人以上。对3周岁以上常住居民,采用改良加藤厚涂片法（一粪一检）,检查肠道蠕虫卵。结果显示,共调查了28乡镇（街道）140个行政村（社区）7 099人,土源性线虫感染率为1.65%（117/7 099）,钩虫和鞭虫的感染率分别为1.62%（115/7 099）、0.03%（2/7 099）,未检出蛔虫感染。男、女感染率分别为1.55%（51/3 363）和1.77%（66/3 736）。50岁以上年龄组感染率最高（3.83%,84/2 196）,感染率随年龄增长而升高（P < 0.05）。农民感染率最高,为4.95%（87/1 756）。岛内、岛外片区总感染率分别为0.25%（5/2 035）和2.21%（112/5 063）,二者差异有统计学意义（P < 0.05）。翔安区感染率最高,为3.89%（60/1 544）,岛内仅检出钩虫感染,感染率为0.25%（5/2 035）,岛外钩虫和鞭虫感染率分别为2.17%（110/5 063）和0.04%（2/5 063）,二者差异有统计学意义（P < 0.05）。近年来厦门市人群土源性线虫感染率呈下降趋势,岛外农村地区感染率较高。

To understand the current status of the soil-transmitted nematode (STN) infections among Xiamen population in order to establish a scientific strategy for the better control and prevention, an epidemiological survey was performed in Xiamen region from 2012 to 2017. Based on the National Survey Plan and Implementation Rules for the Status of Human Key Parasites, the survey sites were chosen using stratified cluster sampling method. Total 4 evenly distributed townships (or street) were randomly chosen from each District of Xiamen (Out of island: Xiang’an, Tong’an, Jimei, and Haicang. On the island: Huli and Siming) and then four to five villages or communities were randomly selected from each selected township (or street) as survey sites. More than 50 permanent residents with age over 3 years old from each survey site were enrolled as participants. Fecal samples were collected from each participant and the intestinal helminth eggs were examined under microscope using modified Kato-Katz thick smear method (one sample one examination). Total 7 099 individuals from 140 survey sites (villages or communities) distributed in 28 township (streets) were examined. The overall prevalence of STN infections was 1.65% (117/7 099), including 1.62% (115/7 099) of hookworm infection and 0.03% (2/7 099) of Trichuris trichiura infection. No Ascaris infection was detected among all samples. There was no significant difference in the prevalence of STN between male (1.55%, 51/3 363） and female participants (1.77%, 66/3 736) (P > 0.05). In terms of the age, people over 50 years old had the highest prevalence of STN infections(3.83%, 84/2 196) with significant difference compared to people in other age groups (P < 0.05). Regarding the occupational distribution, farmers had the highest prevalence (4.95%, 87/1 756). There was significant difference in the prevalence of STNs between people living on the island (with only hookworm infection 0.25%, 5/2 035) and outside the island (mainland) (2.21%, 112/5 063, including hookworm 2.17%, 110/5 063 and Trichuris 0.04%, 2/5 063） (P < 0.05). People living in Xiang’an District had the highest prevalence of STNs compared to other 5 Districts. By this survey, we conclude that the overall prevalence of STN infections among the whole Xiamen region keeps at low level. People living on mainland have higher infection rate than people living on the island.