Senay H, MacPherson D
Regional Parasitology Laboratory, St. Joseph's Hospital, McMaster University, Hamilton, Canada.
J Infect Dis. 1990 Oct;162(4):987-90. doi: 10.1093/infdis/162.4.987.
To study the demographic profile of Blastocystis hominis carriers from Hamilton, Canada, the Regional Parasitology Laboratory records for 1988 were reviewed, and a prospective study on carriers was conducted to clarify the natural history of the infection and ascertain the role of B. hominis as an intestinal pathogen. Retrospective analysis revealed that 8% of stool samples harbored B. hominis. The median age of the carriers was 37 years; 55% were female. Prospective analysis of 139 patients showed that most (76%) of 86 in whom B. hominis was the sole organism found (and for whom data were complete) continued to harbor the parasite in stool samples submitted a median of 57 days after the first sample. There was no correlation between the presence of B. hominis and symptoms. Thus, B. hominis, though commonly seen in stool samples submitted to this laboratory, is thought to be a commensal organism.
为研究来自加拿大汉密尔顿的人芽囊原虫携带者的人口统计学特征，回顾了1988年地区寄生虫学实验室记录，并对携带者进行了一项前瞻性研究，以阐明感染的自然史并确定人芽囊原虫作为肠道病原体的作用。回顾性分析显示，8%的粪便样本中人芽囊原虫呈阳性。携带者的年龄中位数为37岁；55%为女性。对139名患者的前瞻性分析表明，在86名仅发现人芽囊原虫（且数据完整）的患者中，大多数（76%）在首次样本采集后的中位数57天提交的粪便样本中仍携带该寄生虫。人芽囊原虫的存在与症状之间没有相关性。因此，尽管在提交到该实验室的粪便样本中常见人芽囊原虫，但它被认为是一种共生生物。
