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土耳其穆拉学龄儿童中各亚型的分布情况。

The Distribution of Subtypes among School-aged Children in Mugla, Turkey.

作者信息

Sankur Funda, Ayturan Seniz, Malatyali Erdogan, Ertabaklar Hatice, Ertug Sema

机构信息

Microbiology Laboratory, Training and Research Hospital, Mugla Sitki Kocman University, Mugla, Turkey.

Dept. of Parasitology, Faculty of Medicine, Adnan Menderes University, Aydin, Turkey.

出版信息

Iran J Parasitol. 2017 Oct-Dec;12(4):580-586.

Abstract

BACKGROUND

is a common protozoon that inhabits human intestinal tract and has a worldwide distribution. This study aimed to determine subtype (ST) distribution of among school-aged children in a western city of Turkey between Mar and Jun 2014.

METHODS

This cross-sectional study was conducted among primary school children in Mugla between Mar and Jun 2014. Overall, 468 stool samples from children were examined by direct microscopy and inoculated into Jones medium. partial small subunit ribosomal RNA gene (SSU-rDNA) was amplified and sequenced from culture positive isolates. Subtypes were determined according to closest or exact match at GenBank and ST (18S) database.

RESULTS

The positive rate of was 7.4% (n=35) with xenic in-vitro culture (XIVC). The subtypes could be identified for 33 (94.2%) isolates; 12 (34.2%) were ST3, 11 (31.4%) were ST1, 9 (25.7%) were ST2, one was (2.8%) ST7. No relationship was found between infected and non-infected cases in terms of gastrointestinal symptoms. Additionally, none of the possible risk factors was related to infection.

CONCLUSION

Subtypes in children was similar to those reported in most of the studies that found ST3 as the most common subtype.

摘要

背景

是一种常见的原生动物,栖息于人类肠道,在全球范围内均有分布。本研究旨在确定2014年3月至6月间土耳其西部某城市学龄儿童中的亚型(ST)分布情况。

方法

本横断面研究于2014年3月至6月在穆拉的小学儿童中开展。总共对468名儿童的粪便样本进行了直接显微镜检查,并接种到琼斯培养基中。从培养阳性的分离株中扩增并测序部分小亚基核糖体RNA基因(SSU-rDNA)。根据GenBank和ST(18S)数据库中最接近或完全匹配的结果确定亚型。

结果

通过体外混合培养(XIVC),的阳性率为7.4%(n = 35)。33株(94.2%)分离株的亚型可被鉴定;12株(34.2%)为ST3,11株(31.4%)为ST1,9株(25.7%)为ST2,1株(2.8%)为ST7。在胃肠道症状方面,感染病例与未感染病例之间未发现关联。此外,任何可能的危险因素均与感染无关。

结论

儿童中的亚型与大多数研究报告的情况相似,其中ST3是最常见的亚型。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f4e5/5756308/83e2116f0799/IJPA-12-580-g001.jpg

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