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在几个国家的长期腹泻病例中,发现一种球虫样或氰菌(cyanobacterium)样体(CLB)。本文对在尼泊尔旅游的和外国侨民进行前瞻性病例对照比较研究,以确定CLB与腹泻病的关系。CIWEC诊所为各国侨民和旅游者服务,USEM诊所为美国驻尼泊尔大使馆雇员及其家属服务。本研究的时间自1992年4月27日至8月31日。结果:1992年因有消化道症状在CIWEC就诊的873例确诊为CLB患者90例,约占10％;在USEM就诊的91例中有18例,约占20％。两个诊所在本研究开始前的91年11月至92年4月干冷季节,因胃肠病就诊的1045例中无1例检出CLB。研究期间,无腹泻配对的对照组96例中仅1例有CLB感染。在侨民中,CLB患者居住时间显著短于对照组(11月比24月);居住时间>2年者,在CLB患者
In cases of chronic diarrhea in several countries, a coccidiosis-like or cyanobacterium-like body (CLB) was found. This article compares prospective case-controls between tourism in Nepal and foreign nationals to determine the relationship between CLB and diarrheal diseases. The CIWEC clinic serves diasporas and tourists from all over the world. The USEM Clinic serves employees and their dependents of the U.S. Embassy in Nepal. The study was conducted from April 27 to August 31, 1992. Results: Of the 873 patients diagnosed with CLB with gastrointestinal symptoms in 1992, 90 were diagnosed with CLB, accounting for about 10% of the total. Of the 91 patients treated with USEM, 18 (20%) were diagnosed. CLB was detected in none of the 1045 cases of gastroenteritis treated by the two clinics in the dry and cold seasons from November 1991 to April 1992 before the start of the study. During the study, only 1 of the 96 controls in the control group without diarrhea had CLB infection. In the diaspora, CLB patients lived significantly shorter than the control group (November vs 24 months); those with a residence time of> 2 years had significantly lower CLB patients