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Your search keyword '"Chung, Doo Ryeon"' showing total 22 results
Start Over Author "Chung, Doo Ryeon" Publisher american society for microbiology
22 results on '"Chung, Doo Ryeon"'

1. Antimicrobial activity of ceftazidime-avibactam against KPC-2-producing Enterobacterales: a cross-combination and dose-escalation titration study with relebactam and vaborbactam

Author

Kang, Min Seo, primary, Baek, Jin Yang, additional, Ko, Jae-Hoon, additional, Cho, Sun Young, additional, Lee, Keon Young, additional, Lee, Young Ho, additional, Yang, Jinyoung, additional, Kim, Tae Yeul, additional, Huh, Hee Jae, additional, Lee, Nam Yong, additional, Huh, Kyungmin, additional, Kang, Cheol-In, additional, Chung, Doo Ryeon, additional, and Peck, Kyong Ran, additional

Published
2024
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8. Spread of Carbapenem-Resistant Acinetobacter baumannii Global Clone 2 in Asia and AbaR-Type Resistance Islands

Author

Kim, Dae Hun, primary, Choi, Ji-Young, additional, Kim, Hae Won, additional, Kim, So Hyun, additional, Chung, Doo Ryeon, additional, Peck, Kyong Ran, additional, Thamlikitkul, Visanu, additional, So, Thomas Man-Kit, additional, Yasin, Rohani M. D., additional, Hsueh, Po-Ren, additional, Carlos, Celia C., additional, Hsu, Li Yang, additional, Buntaran, Latre, additional, Lalitha, M. K., additional, Song, Jae-Hoon, additional, and Ko, Kwan Soo, additional

Published
2013
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13. Changing Trends in Antimicrobial Resistance and Serotypes of Streptococcus pneumoniae Isolates in Asian Countries: an Asian Network for Surveillance of Resistant Pathogens (ANSORP) Study

Author

Kim, So Hyun, primary, Song, Jae-Hoon, additional, Chung, Doo Ryeon, additional, Thamlikitkul, Visanu, additional, Yang, Yonghong, additional, Wang, Hui, additional, Lu, Min, additional, So, Thomas Man-kit, additional, Hsueh, Po-Ren, additional, Yasin, Rohani M., additional, Carlos, Celia C., additional, Pham, Hung Van, additional, Lalitha, M. K., additional, Shimono, Nobuyuki, additional, Perera, Jennifer, additional, Shibl, Atef M., additional, Baek, Jin Yang, additional, Kang, Cheol-In, additional, Ko, Kwan Soo, additional, and Peck, Kyong Ran, additional

Published
2012
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19. blaNDM-5-Bearing IncFII-Type Plasmids of Klebsiella pneumoniae Sequence Type 147 Transmitted by Cross-Border Transfer of a Patient.

Author

Shin J, Baek JY, Cho SY, Huh HJ, Lee NY, Song JH, Chung DR, and Ko KS

Subjects
Anti-Bacterial Agents therapeutic use, Base Sequence, Humans, Klebsiella Infections drug therapy, Klebsiella pneumoniae drug effects, Patient Transfer, Republic of Korea, Sequence Analysis, DNA, United Arab Emirates, Cross Infection drug therapy, Klebsiella pneumoniae genetics, Plasmids genetics, Plasmids isolation & purification, beta-Lactamases genetics
Abstract

The two plasmids extracted from Klebsiella pneumoniae sequence type 147 (ST147) isolates were analyzed. The first isolate was obtained from a patient transferred from United Arab Emirates to South Korea. The second isolate was obtained from a Korean patient and was suspected to be transmitted from the first patient. Sequences of two plasmids were almost the same, and genetic structures, including blaNDM-5, of these plasmids were similar to plasmids of NDM-1-producing Escherichia coli ST131 isolates found in Europe., (Copyright © 2016, American Society for Microbiology. All Rights Reserved.)

Published
2016
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20. In vitro activities of 21 antimicrobial agents alone and in combination with aminoglycosides or fluoroquinolones against extended-spectrum-β-lactamase-producing Escherichia coli isolates causing bacteremia.

Author

Cha MK, Kang CI, Kim SH, Cho SY, Ha YE, Wi YM, Chung DR, Peck KR, and Song JH

Subjects
Cefixime pharmacology, Ceftazidime pharmacology, Escherichia coli pathogenicity, Microbial Sensitivity Tests, Penicillanic Acid analogs & derivatives, Penicillanic Acid pharmacology, Piperacillin pharmacology, Tazobactam, Aminoglycosides pharmacology, Anti-Bacterial Agents pharmacology, Bacteremia microbiology, Escherichia coli drug effects, Escherichia coli enzymology, Fluoroquinolones pharmacology, beta-Lactamases metabolism
Abstract

We evaluated the in vitro activity of various antimicrobials alone and in combination against 291 extended-spectrum-β-lactamase-producing Escherichia coli (ESBL-EC) isolates causing bacteremia in South Korean hospitals. Ceftazidime, cefepime, and piperacillin-tazobactam in combination with amikacin showed greater activity than found in combination with ciprofloxacin. In settings with a high prevalence of ESBL-producing pathogens, combination aminoglycoside antimicrobial therapy, especially with amikacin, may be considered for empirical therapy against suspected Gram-negative sepsis as a carbapenem-saving strategy., (Copyright © 2015, American Society for Microbiology. All Rights Reserved.)

Published
2015
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21. Significant reduction in rate of indeterminate results of the QuantiFERON-TB Gold In-Tube test by shortening incubation delay.

Author

Yun JW, Chung HS, Koh WJ, Chung DR, Kim YJ, and Kang ES

Subjects
Adolescent, Adult, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Republic of Korea, Sensitivity and Specificity, Tertiary Care Centers, Time Factors, Young Adult, Interferon-gamma Release Tests methods, Specimen Handling methods, Tuberculosis diagnosis
Abstract

The QuantiFERON-TB Gold In-Tube (QFT-G IT) test (Cellestis Inc., Valencia, CA) is one of the gamma interferon release assays (IGRAs) that are promising tools for diagnosing active or latent Mycobacterium tuberculosis infections. We investigated the clinical and laboratory factors that affect the rate of indeterminate QFT-G IT test results. We also suggest a workflow strategy for achieving optimized test results using the QFT-G IT test for the diagnosis of active tuberculosis (TB) or latent TB infection. We performed statistical analysis using data from a retrospective review of medical records. The first phase included 683 QFT-G IT test results from 676 patients tested between January 2008 and May 2008, and the second phase included an additional 663 QFT-G IT test results from 653 patients tested between January 2008 and December 2008 at Samsung Medical Center, a tertiary care hospital in South Korea. Immunosuppressive drug therapy, underlying diseases, bedridden status, and hypoalbuminemia were significantly associated with indeterminate QFT-G IT test results. With reduction of the incubation delay during the test procedure from an average of 9.82 h to an average of 2.70 h with changes in the workflow, the frequency of indeterminate QFT-G IT test results was significantly reduced from 11.4% to 2.7%. With >6 h of incubation delay, however, the frequency of indeterminate QFT-G IT test results was increased in a statistically significant manner. This study demonstrates that not only clinicopathological factors but also laboratory factors, such as incubation delay, significantly affect the rate of indeterminate QFT-G IT test results; therefore, optimization of the test procedure may contribute to reductions in the rate of indeterminate QFT-G IT test results, which delay the diagnosis of TB.

Published
2014
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22. Bacteremic pneumonia caused by extensively drug-resistant Streptococcus pneumoniae.

Author

Kang CI, Baek JY, Jeon K, Kim SH, Chung DR, Peck KR, Lee NY, and Song JH

Subjects
Aged, 80 and over, Anti-Bacterial Agents pharmacology, Bacteremia microbiology, Humans, Male, Microbial Sensitivity Tests, Molecular Sequence Data, Penicillin-Binding Proteins genetics, Pneumonia, Pneumococcal microbiology, Sequence Analysis, DNA, Streptococcus pneumoniae classification, Streptococcus pneumoniae genetics, Bacteremia diagnosis, Drug Resistance, Multiple, Bacterial, Pneumonia, Pneumococcal diagnosis, Streptococcus pneumoniae drug effects, Streptococcus pneumoniae isolation & purification
Abstract

The emergence of antimicrobial resistance threatens the successful treatment of pneumococcal infections. Here we report a case of bacteremic pneumonia caused by an extremely drug-resistant strain of Streptococcus pneumoniae, nonsusceptible to at least one agent in all classes but vancomycin and linezolid, posing an important new public health threat in our region.

Published
2012
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