【摘要】 目的：调查河南省人群人芽囊原虫的流行病学特征并探讨其致病性及防治方法。方法：采用卢戈氏碘液直接涂片法检查粪便，检出的人芽囊原虫体外培养后感染动物作致病性研究。结果：检查居民３１３０人，检出人芽囊原虫阳性者１８３例，阳性率为５８５％；用扫描电镜观察，人芽囊原虫可引起肠粘膜损伤；单纯人芽囊原虫感染者中，主要症状为间歇性腹泻。结论：该原虫具有致病性；临床症状的轻重取决于感染原虫的数量；感染与不良卫生习惯有关，且有季节性和发病的聚集性；甲硝唑为治疗本病的首选药物。更多还原

【Abstract】 Objective: To analyse the varied causes of misdiagnosis on hyperthyroidism in middle and old patients. Methods: The ages,symptoms, signs, laboratory material and sorts of misdiagnostic diseases of 12 cases hyperthroidism in middle and old patients were analysed.Results: The causes of misdiagnosis in these patients were the single clinical manifestation and its unpeculiarity. The misdiagnostic diseases were related to lots of systems. The misdiagnostic time was about from two months to three years. Conclusion: To avoid erroneous diagnosis on hyperthroidism in middle and old patients with single orginal clinical symptom,doctors should collect the clinical material such as symptoms, signs, illness history, laboratory reports carefully and detailly.更多还原