King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
Department of Parasitology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
Am J Trop Med Hyg. 2018 Mar;98(3):763-767. doi: 10.4269/ajtmh.17-0240. Epub 2018 Jan 18.
Intestinal parasitic infection rate among school-aged children in Thailand has been decreasing. However, certain intestinal parasites remain problematic in some regions. This cross-sectional study was conducted between February and September 2016 in three suburban government primary schools (KK, BR, and HK), Saraburi, Thailand. Stool was collected from 263 asymptomatic subjects (4-15 years old), using simple direct smear, formalin-ether concentration, Boeck and Drbohlav's Locke-Egg-Serum (LES) medium culture, and agar plate culture. A self-administered questionnaire was used to collect data about lifestyle and socioeconomic status. The overall rate of intestinal parasites was 22.1% (15.6% single infection and 6.5% multiple infections). The helminths involving the digestive system found were (1.5%) and (0.4%). For protozoan infection, the major cause was (17.5%). The other protozoa included (4.6%), (3.4%), / (1.1%), and (0.8%). The sensitivity for the detection of increased with the LES culture technique. The infection rate of each organism was not significantly different among the three schools except for which showed the highest prevalence in the HK school ( = 0.001). This was correlated with the questionnaire results in which the HK school showed the highest risk of drinking contaminated water ( = 0.004). The present study emphasized the persistent problems of protozoan infections among suburban school-aged children. Lifestyle was still an important factor for intestinal parasitic infections among suburban school-aged Thai children in this study. Health education as well as routine surveillance was necessary to control the infections.
泰国学龄儿童的肠道寄生虫感染率一直在下降。然而，某些肠道寄生虫在某些地区仍然存在问题。本横断面研究于 2016 年 2 月至 9 月在泰国萨拉布里的三所郊区政府小学（KK、BR 和 HK）进行。从 263 名无症状受试者（4-15 岁）中采集粪便，采用简单直接涂片、福尔马林-乙醚浓缩、Boeck 和 Drbohlav 的 Locke-Egg-Serum（LES）培养基培养和琼脂平板培养。使用自填式问卷收集有关生活方式和社会经济状况的数据。肠道寄生虫的总体感染率为 22.1%（15.6%为单一感染，6.5%为多重感染）。涉及消化系统的蠕虫包括 （1.5%）和 （0.4%）。对于原虫感染，主要原因是 （17.5%）。其他原虫包括 （4.6%）、 （3.4%）、 / （1.1%）和 （0.8%）。LES 培养技术可提高对 的检测灵敏度。除 HK 学校的 （=0.001）感染率最高外，三种学校之间的每种生物体的感染率没有显着差异。这与问卷结果相关，其中 HK 学校显示饮用受污染水的风险最高（=0.004）。本研究强调了郊区学龄儿童中持续存在的原虫感染问题。在本研究中，生活方式仍然是郊区泰国学龄儿童肠道寄生虫感染的重要因素。需要进行健康教育和常规监测，以控制感染。
