2012年至2014年韩国分离株监测。
Surveillance of Isolates in Korea from 2012 to 2014.
作者信息
Jung Su-Mi, Kim Nan-Ok, Cha Injun, Na Hae-Young, Chung Gyung Tae, Kawk Hyo Sun, Hong Sahyun
机构信息
Division of Enteric Diseases, Center for Infectious Diseases, National Research Institute of Health, Osong, Korea.
出版信息
Osong Public Health Res Perspect. 2017 Feb;8(1):71-77. doi: 10.24171/j.phrp.2017.8.1.10. Epub 2017 Feb 28.
OBJECTIVES
To investigate the prevalence and toxin production characteristics of non-emetic and emetic strains isolated via the laboratory surveillance system in Korea.
METHODS
A total of 667 strains were collected by the Korea National Research Institute of Health laboratory surveillance system from 2012 to 2014. The collected strains were analyzed by geographical region, season, patient age, and patient sex. Additionally, the prevalence rates of enterotoxin and emetic toxin genes were evaluated.
RESULTS
The isolation rate of strains increased during the summer, but the isolation rate was evenly distributed among patient age groups. Emetic toxin was produced by 20.2% of the isolated strains. The prevalence rates of five enterotoxin genes (, , , , and ) were 85.0, 78.6, 44.5, 36.6, and 29.7%, respectively, among non-emetic strains and 77.8, 59.3, 17.8, 11.9 and 12.6%, respectively, among emetic strains. Thus, the prevalence rates of all five enterotoxin genes were lower in emetic .
CONCLUSION
The prevalence of enterotoxin genes differed between non-emetic and emetic strains. Among emetic strains, the prevalence rates of two enterotoxin genes ( and ) were lower than those among the non-emetic strains. In both the emetic and non-emetic strains isolated in Korea, and were the most prevalent enterotoxin genes.
目的
通过韩国的实验室监测系统，调查非呕吐型和呕吐型菌株的流行情况及毒素产生特征。
方法
2012年至2014年，韩国国立卫生研究院实验室监测系统共收集了667株菌株。对收集的菌株按地理区域、季节、患者年龄和患者性别进行分析。此外，评估了肠毒素和呕吐毒素基因的流行率。
结果
菌株的分离率在夏季有所上升，但在各患者年龄组中的分离率分布均匀。20.2%的分离菌株产生呕吐毒素。在非呕吐型菌株中，五种肠毒素基因（、、、和）的流行率分别为85.0%、78.6%、44.5%、36.6%和29.7%，在呕吐型菌株中分别为77.8%、59.3%、17.8%、11.9%和12.6%。因此，在呕吐型菌株中，所有五种肠毒素基因的流行率均较低。
结论
非呕吐型和呕吐型菌株中肠毒素基因的流行情况不同。在呕吐型菌株中，两种肠毒素基因（和）的流行率低于非呕吐型菌株。在韩国分离的呕吐型和非呕吐型菌株中，和是最常见的肠毒素基因。
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