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Original Article
Utilization of Laboratory Tests for Tuberculosis and Mycobacterial Disease in Korea
Chang-Ki Kim, Sung Won Choi, Mi-Sun Park
Osong Public Health Res Perspect. 2014;5(Suppl):S24-S29.   Published online December 31, 2014
Objectives In Korea, a large portion of tuberculosis (TB) patients are diagnosed and treated in private institutes. Laboratory tests are crucial for TB control. There are many possible problems using laboratory tests in the private sector. In this study, we aimed to investigate the characteristics and trends of utilizing laboratory tests for TB and mycobacterial diseases in the private sector by...
Evaluation and Comparison of Molecular and Conventional Diagnostic Tests for Detecting Tuberculosis in Korea, 2013
Sang-Hee Park, Chang-Ki Kim, Hye-Ran Jeong, Hyunjin Son, Seong-Han Kim, Mi-Sun Park
Osong Public Health Res Perspect. 2014;5(Suppl):S3-S7.   Published online December 31, 2014
Objectives A fast and accurate diagnosis is necessary to control and eliminate tuberculosis (TB). In Korea, TB continues to be a serious public health problem. In this study, diagnostic tests on clinical samples from patients suspected to have TB were performed and the sensitivity and specificity of the various techniques were compared. The main objective of the study was to compare...
Articles
Resistance to Fluoroquinolone by a Combination of Efflux and Target Site Mutations in Enteroaggregative Escherichia coli Isolated in Korea
Jun-Young Kim, Se-Mi Jeon, Hyungjun Kim, Nara Lim, Mi-Sun Park, Seong-Han Kim
Osong Public Health Res Perspect. 2012;3(4):239-244.   Published online December 31, 2012
Objectives Enteroaggregative Escherichia coli (EAEC) was recently reported as a major diarrheagenic pathogen in infant and adult travelers, both in developing and developed countries. EAEC strains are known to be highly resistant to antibiotics including quinolones. Therefore in this study we have determined the various mechanisms of quinolone resistance in EAEC strains isolated in Korea. Methods For 26 EAEC strains highly resistant to...
Enhanced Type III Secretion System Expression of Atypical Shigella flexneri II:(3)4,7(8)
Sahyun Hong, Injun Cha, Nan-Ok Kim, Seong-Han Kim, Kyung-Tae Jung, Je-Hee Lee, Dong-Wook Kim, Mi-Sun Park, Yeon-Ho Kang
Osong Public Health Res Perspect. 2012;3(4):222-228.   Published online December 31, 2012
Objectives We aimed at evaluating the virulence of atypical Shigella flexneri II:(3)4,7(8) by DNA microarray and invasion assay. Methods We used a customized S. flexneri DNA microarray to analyze an atypical S. flexneri II:(3)4,7(8) gene expression profile and compared it with that of the S. flexneri 2b strain. Results Approximately one-quarter of the atypical S. flexneri II:(3)4,7(8) strain genes showed significantly altered expression profiles; 344...
A Contribution of MdfA to Resistance to Fluoroquinolones in Shigella flexneri
Jun-Young Kim, Se-Mi Jeon, Hyungjun Kim, Mi-Sun Park, Seong-Han Kim
Osong Public Health Res Perspect. 2011;2(3):216-217.   Published online December 31, 2011
In this study, we measured the drug resistance conferred by mdfA mutations in two Shigella flexneri strains. A mutant in mdfA genes was constructed by polymerase chain reaction–based, one-step inactivation of chromosomal genes. The antimicrobial susceptibility of parent and mutant strains to fluoroquinolones was determined by minimal inhibitory concentration (MICs). The △mdfA mutants were somewhat more susceptible to fluoroquinolones than...
Original Article
Prevalence of Antibiotic Resistance in Escherichia coli Fecal Isolates From Healthy Persons and Patients With Diarrhea
Seung-Hak Cho, Yeong-Sik Lim, Mi-Sun Park, Seong-Han Kim, Yeon-Ho Kang
Osong Public Health Res Perspect. 2011;2(1):41-45.   Published online June 30, 2011
Objectives This study aimed to investigate the prevalence of antibiotic resistance in fecal Escherichia coli isolates from healthy persons and patients with diarrhea. Methods E. coli isolates (n = 428) were obtained from fecal samples of apparently healthy volunteers and hospitalized patients with diarrhea. Susceptibility patterns of isolates to 16 antimicrobial agents were determined by agar disc diffusion. Results Most E. coli isolates exhibited less than 10%...
Distribution of Virulence Genes and Their Association of Serotypes in Pathogenic Escherichia coli Isolates From Diarrheal Patients in Korea
Seung-Hak Cho, Kyung-Hwan Oh, Seong-Han Kim, Hee-Bok Oh, Mi-Sun Park
Osong Public Health Res Perspect. 2010;1(1):29-35.   Published online December 31, 2010
Objectives To characterise the genetic and serological diversity of pathogenic Escherichia coli, we tested 111 E coli strains isolated from diarrhoeal patients in Korea between 2003 and 2006. Methods The isolates were tested through polymerase chain reaction (PCR) and slide agglutination method for the detection of virulence genes and serotypes, respectively. To compare the expression of Shiga toxin (stx)-1 and stx2 genes, real-time...

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Print ISSN: 2210-9099
Online ISSN: 2233-6052

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