摘要
阿米巴病
病原学
溶组织内阿米巴是微需氧原虫。活动的滋养体见于人类大肠中。被包在囊内的滋养体和存在于粪便中的这些包囊，是经粪一口途径传播的。已认识到许多个体排泄四核的、直径7．5—15μm的溶组织内阿米巴包囊，但没有侵袭组织的特点，少得多的个体有侵袭性阿米巴病——痢疾或肝脓肿。
Amoebiasis
Aetiology
Entamoeba histolytica is a micro-aerophilic protozoan parasite. The motile trophozoite is found in the large intestine in humans. Trophozoites encyst and these cysts, excreted in faeces, are the means of transmission by the faeco-oral route. It was recognized that many individuals appeared to excrete the quadrinucleate, 7.5-15 lain diameter cysts of E. histolytica but exhibited no features of tissue invasion, and that many fewer individuals have,
