结肠小袋纤毛虫是热带亚热带常见的 1种寄生虫。世界上有许多地区发现结肠小袋纤毛虫病。其中以菲律宾、新几内亚、中美洲等地区最为多见。在人感染率高的地方猪的感染率也高。有关结肠小袋纤毛虫的电镜研究不多 ,近年来 ,作者用ＳＥＭ和ＴＥＭ对人结肠小袋纤毛虫滋养体作了研 Colon pouch ciliates are one of the common parasites in tropical and subtropical regions. Colonic pouch ciliates are found in many parts of the world. Among them, the Philippines, New Guinea and Central America are the most common areas. In areas where human infection is high, pig infection rates are also high. In recent years, the author studied the trophozoites of human colon pouch ciliates using SEM and TEM