The draft genome sequence of GIHE-NHR1, a filamentous cyanobacterium, is reported here. Comparative genome analysis suggests that this strain can produce an odor-causing compound (2-methylisoborneol) in water. The genome information is expected to improve the understanding of the putative 2-methylisoborneol production by the bacterium.
View Article and Find Full Text PDFThe draft genome sequence of () strain GIHE 2018, a filamentous nitrogen-fixing and potentially harmful cyanobacterium, is reported here. This is the first strain isolated from a shallow freshwater pond in South Korea. This information is expected to improve our understanding of the phylogeography of this species.
View Article and Find Full Text PDFCoffee is the most popular beverage in the Republic of Korea, other than Korea's traditional green tea. Coffee contains many physiologically active substances, such as chlorogenic acids (CGAs) and caffeine. Previous studies have focused on the content of CGAs and caffeine in brewed coffee.
View Article and Find Full Text PDFNoroviruses (NoVs) are the major global source of acute gastroenteritis (AGE) outbreaks. To detect NoVs, real-time reverse transcription-quantitative PCR (RT-qPCR) assays have been widely employed since the first decade of the 21 century. We developed a redesigned probe, JJV1PM, for RT-qPCR assay detection of NoV genogroup (G) I strains.
View Article and Find Full Text PDFThe genotype distribution of group A rotaviruses (RVAs) circulating in Gyeonggi province, South Korea between 2009 and 2012 was investigated. A total of 2619 stool specimens from sporadic acute gastroenteritis cases and 117 acute gastroenteritis outbreaks were analyzed. Among them, RVAs were detected from 263 (10.
View Article and Find Full Text PDFBackground: New emerging strains of noroviruses (NoVs) often increase acute gastroenteritis (AGE) outbreaks worldwide.
Objective: We analyzed the epidemiological features and genotypic patterns of NoVs in AGE outbreaks.
Study Design: To elucidate the public health impact of NoVs during AGE outbreaks in South Korea, a molecular and epidemiological investigation was performed with 318 AGE outbreaks reported from the Gyeonggi province of South Korea during the period from 2006 to 2013.
Background: The global emergence of norovirus (NoV) GII.4 variants has raised public concerns in the world including South Korea since 1996.
Objective: We analyzed seasonality and genotypic pattern for sporadic cases by norovirus GII-4 variants.
Amantadine resistance among influenza A viruses was investigated in South Korea in 2005-2010. Of 308 influenza A viruses examined, 229 had the S31N substitution in the M2 protein. The frequency of amantadine resistance was 30 %, 100 %, and 76 % in influenza A/H1N1, pandemic A/H1N1 2009(A/H1N1pdm), and A/H3N2 subtypes, respectively.
View Article and Find Full Text PDFHPLC method for quantitative determination of four preservatives and nine UV filters worldwide authorized in commercial suncare product was developed and validated, and then 101 samples of commercial suncare products were analyzed for the UV filters and preservatives using the proposed method. The mobile phase was acetonitrile-water containing 0.5% acetic acid using a gradient elution at a flow rate of 0.
View Article and Find Full Text PDFBecause conventional methods for detecting emetic-toxin-producing B. cereus are laborious and costly, various PCR assays, which are easy and cheap, have recently been reported. Therefore, this study estimated and compared the ability of various PCR assays to detect emetic-toxin-producing B.
View Article and Find Full Text PDFRotavirus was present in 1,367 of 7,060 stool samples (19.4%) collected in Gyeonggi province of South Korea from 2003 through 2005. The predominant genotypes were confirmed as G4/P2A[6] (19.
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