小的梨形滋养体在十二指肠内，变成有感染性的包囊后释放出来。
The small pear-shaped trophozoites live in the duodenum and become infective cysts that are excreted.
方法选择18例小儿腹泻的阿米巴肠炎病例，进行便常规检查，细菌培养加药敏试验，查阿米巴滋养体、包囊和霉菌。
Methods 18 child diarrhea patient were detected with stool routine test and bacteria culture and sensitivity, ameba trophont, cyst and mold.
实验组中，滋养体逐渐向包囊转变。
In the experiment group, trophozoites were induced to transform to cysts gradually.
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