Molecular Epidemiology of<i>Legionella pneumophila</i>Isolated from Bath Facilities of Public Establishments in Seoul

Jeon, Su Jin; Jung, Ji Hun; Jin, Young‐Hee; Lee, Jae kyoo; Oh, Young Hee; Choi, Sung Min

doi:10.4167/jbv.2011.41.4.295

Cited by 4 publications

(1 citation statement)

References 11 publications

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“…PCR analysis was performed to identify Legionella pneumophila and Legionella spp. by amplifying 16S rRNA and mip gene as described previously (Table 1) (16,17). Amplification reactions were subjected to an initial denaturation step of 95•C for 4 min, followed by 30 amplification cycles of 30 sec at 95•C, 30 sec at 55•C, and 30 sec at 72•C, followed by a final extension at 72•C for 10 min.…”

Section: Detection Of Legionella By Pcrmentioning

confidence: 99%

Epidemiology ofLegionellaand Climatic Variables in Seoul, Korea

et al. 2019

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Legionella species are abundant in the built environment and are increasingly recognized as a cause of Legionnaires' disease (LD). As the number of cases of Legionnaires' disease acquired by local communities in the Seoul metropolitan area in Korea has been increased, there was concern that changes in environmental factors could affect disease outbreaks. We described the association between climatic variables and occurrence of legionellosis in Korea and Legionella detection rate in Seoul area. A total of 418 cases of legionellosis were reported between 2014 and 2017. There was a seasonal peak in summer. LD continuously occurred from early spring to winter every year and rapidly increased in summer. In the regression analysis, the primary variables of interest-PM2.5 (g/m 3 ), NO 2 (ppb), and a number of the date of issue O 3 warning were not significant except for average temperature (R 2 =0.8075). The Legionella detection rate in Seoul, Korea showed a trend similar to precipitation (P=0.708, ANOVA). A relatively high proportion of Legionella detection rate was shown, especially cooling tower (17.7%) and public bath (19.3%). This finding is in line with current understanding of the ecological profile of this pathogen and supports the assertion that legionellosis occurs through contamination of water sources.

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Section: Detection Of Legionella By Pcrmentioning

confidence: 99%

Epidemiology ofLegionellaand Climatic Variables in Seoul, Korea

et al. 2019

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Herpesviral Interaction with Autophagy

Liang

2011

J Bacteriol Virol

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Autophagy constitutes a major catabolic hub for the quality control of intracellular entities of eukaryotic cells, and is emerging as an essential part of the host antiviral defense mechanism. However, in turn, viruses have evolved elegant strategies to co-opt various stages of the cellular autophagy pathway to establish virulence in vivo. This is particularly the case in the ubiquitous and persistent herpesvirus infection. In this review, I will focus on recent findings regarding the crosstalk between the herpes virus family and the autophagy pathway, with a look at the molecular mechanisms they use to disturb cells' autophagy regulation and eventually result in persistence and pathogenesis.

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Escherichia coli papGenes as well as Adenovirus Type 11 and Type 21, and BK Virus were Involved with Severe Urinary Tract Infection in Infants

et al. 2011

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In infants, urinary tract infections (UTIs) are quite common and primarily caused by bacterial pathogens. However, little research has been conducted regarding the relationship between uropathogenic bacteria, virulent genes, and uropathogenic viruses that might induce UTIs in infants. In this study, we evaluated infants with UTIs to determine the influence of bacterial virulent genes and type of viral infections on clinical aspects. First, we detected 44 cases of bacterial UTI from 600 suspected cases in infants and children. We detected E. coli urovirulence genes (kps, usp, pap, ireA, and cnf), two enteropathogenic E. coli genes (bfpA, and eae) and four S. aureus and S. epidermidis genes (mecA, pvl, bbp, and icaA) in urine samples from infant UTI cases. We also simultaneously detected hematuria-related adenovirus type 11, 21, and BK virus (BKV) in urine samples by PCR. As a result, E. coli was the most prevalent bacteria and in Dimercaptosuccinic acid (DMSA)-positive UTI cases, the uropathogenic E. coli virulence factor pap was significantly high. We found that BKV detection was significantly higher in DMSA-positive UTI infants (89%) compared with 50% of non-UTI (no bacteria detected) cases. These results are indicative of combined multiple bacterial and viral infections and show severe infant pyelonephritis.

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Molecular Epidemiology ofLegionella pneumophilaIsolated from Bath Facilities of Public Establishments in Seoul

Cited by 4 publications

References 11 publications

Epidemiology ofLegionellaand Climatic Variables in Seoul, Korea

Epidemiology ofLegionellaand Climatic Variables in Seoul, Korea

Herpesviral Interaction with Autophagy

Escherichia coli papGenes as well as Adenovirus Type 11 and Type 21, and BK Virus were Involved with Severe Urinary Tract Infection in Infants

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