青海省西宁市人群寄生虫感染情况的调查

按全国人体寄生虫分布调查实施细则的要求，于１９８９年对该市４个调查点的２０８５人进行了人体寄生虫感染情况的调查，其总感染率为４７．２％。查见１１种虫种，其中蠕虫３种，原虫８种，各种寄生虫感染率分别为蛔虫４０．７％，蛲虫（１２岁以下儿童）１３％，鞭虫１．８％，溶组织内阿米巴０．０５％，结肠内阿米巴１．７％，布氏嗜碘阿米巴０．２％，微小内蜒阿米巴５．４％，哈氏内阿米巴０．１％，贾第虫４．２％，人芽囊原虫０．６％，人毛滴虫０．０５％。男、女人群寄生虫感染率分别为４５．８％和４８．５％（χ２＝１．５２３９，Ｐ＞０．０５）。感染１、２、３、４和５种寄生虫者分别占７６．８％、１９．８％、２．５％、０．７％和０．１％。５－１９岁年龄组感染率最高，尤以学生感染为重（χ２＝８４．４７６３，Ｐ＜０．００５）。该调查表明，应开展肠道寄生虫病的防治工作，特别应加强对儿童和青少年的宣传教育，提高其自我保健意识，以预防感染寄生虫。

INVESTIGATION OF HUMAN INTESTINAL PARASITIC INFECTIONS IN XINING CITY, QINGHAI PROVINCE

Based on the unified requirements and standardized methods determined by the Nationwide Survey of Human Parasite Distribution,a sampling investigation of human parasites was carried out on 4 spots in Xining in 1989. Eleven species of human parasites were detected by fecal examination, namely: Ascaris lumbricoides (40.7%), pinworm (13.0%, children under 12 years old), Trichuris trichiura (1.8%), Entamoeba histolytica (0.05%), Entamoeba coli (1.7%), Iodamoeba buetschlii (0.2%), Endolimax nana (5.4%), Entamoeba hartmanni (0.1%) , Giardia lamblia (4.2%), Blastocystis hominis (0.6%), Trichomonas hominis (0.05%) . The parasite infection rates on the 4 spots were 78.0%,46.4%, 34.7%, 24.9%,respectively, revealing significant differences between males(45.8%) and female (48.5%) . Parasitism with 1, 2, 3, 4 and 5 species of parasite was recorded as 76.8%, 19.8%, 2.5%, 0.7% and 0.1%, respectively. The highest infection rate of parasite was observed in the age group of 5-19 years old. It is clear that the prevention and treatment of human intestinal parasitic infections should be further carried out, especially in the juveniles and younger children.