云南省人体肠道寄生原虫分布调查

A SURVEY OF HUMAN INTESTINAL PROTOZOA IN YUNNAN

于１９８７－１９９０年，我们应用分层整群随机抽样的方法，对云南省２８个县１０３个点进行了人体肠道寄生虫调查，每县查３－５个点，每点５００人，共检查５３０６１人。全省寄生虫总感染率为７６．３％，其中查见肠道原虫１０种，包括溶组织内阿米巴（２．５％）、贾第虫（２．５％）、结肠内阿米巴（６．２％）、哈氏内阿米巴（２．１％）、微小内蜒阿米巴（５．２％）、布氏嗜碘阿米巴（１．７％）、人芽囊原虫（７．０％）、隐孢子虫（２．３％，２／８７）、人毛滴虫和等孢球虫。并对溶组织内阿米巴、贾第虫和人芽囊原虫３种致病性原虫的人群的地理分布及其流行因素进行讨论。

During 1987 to 1989, a survey of human intestinal protozoa was carried out in Yunnan Province. Altogether 103 pilot sites of 28 counties were selected via stratified and clustered random sampling. Iodine direct smear method was applied for fecal examination of 53 061 residents. A total of 10 species of intestinal protozoa were identified from 103 sites, the major pathogenic intestinal protozoa and infection rates were as follows: Entamoeba histolyica 2.5% , Giardia lamblia 2.5%, Blastocystis hominis 7.0%, Entamoeba coli 6.2%; Entamoeba hartmanni 2.1%, Endolimax nana 5.2%, Iodamoeba buetschlii 1.7%, Cryptosporidium sp. 2.3%. Multiple infection frequently occurred with 4 species as the maximum.