The pathogenic potential of Blastocystis hominis is still controversial because many epidemiologic and experimental animal studies gave quite different conclusions.
人芽囊原虫是否具有致病性一直颇有争议，因为很多流行病学研究和实验动物研究得出了矛盾的结论。
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Objective To observe the ultrastructural change of intestinal mucosa in mice infected with Blastocystis hominis, and to study the pathogenic mechanism of B. hominis infection.