Kwan Soo Ko

Author PubWeight™ 127.10‹?›

Top papers

Rank Title Journal Year PubWeight™‹?›
1 Rapid pneumococcal evolution in response to clinical interventions. Science 2011 9.09
2 Frequent emergence and limited geographic dispersal of methicillin-resistant Staphylococcus aureus. Proc Natl Acad Sci U S A 2008 3.52
3 Changing trends in antimicrobial resistance and serotypes of Streptococcus pneumoniae isolates in Asian countries: an Asian Network for Surveillance of Resistant Pathogens (ANSORP) study. Antimicrob Agents Chemother 2012 2.65
4 High prevalence of antimicrobial resistance among clinical Streptococcus pneumoniae isolates in Asia (an ANSORP study). Antimicrob Agents Chemother 2004 2.41
5 Spread of methicillin-resistant Staphylococcus aureus between the community and the hospitals in Asian countries: an ANSORP study. J Antimicrob Chemother 2011 2.30
6 Identification of essential genes in Streptococcus pneumoniae by allelic replacement mutagenesis. Mol Cells 2005 2.20
7 Impact of imipenem resistance on mortality in patients with Acinetobacter bacteraemia. J Antimicrob Chemother 2007 1.85
8 High prevalence of multidrug-resistant nonfermenters in hospital-acquired pneumonia in Asia. Am J Respir Crit Care Med 2011 1.80
9 Independent emergence of colistin-resistant Acinetobacter spp. isolates from Korea. Diagn Microbiol Infect Dis 2009 1.64
10 Clinical impact of methicillin resistance on outcome of patients with Staphylococcus aureus infection: a stratified analysis according to underlying diseases and sites of infection in a large prospective cohort. J Infect 2010 1.63
11 Impact of inappropriate antimicrobial therapy on outcome in patients with hospital-acquired pneumonia caused by Acinetobacter baumannii. J Infect 2010 1.59
12 Guidelines for reporting novel mecA gene homologues. Antimicrob Agents Chemother 2012 1.54
13 KPC-producing extreme drug-resistant Klebsiella pneumoniae isolate from a patient with diabetes mellitus and chronic renal failure on hemodialysis in South Korea. Antimicrob Agents Chemother 2010 1.53
14 Dissemination of ST131 and ST393 community-onset, ciprofloxacin-resistant Escherichia coli clones causing urinary tract infections in Korea. J Infect 2009 1.52
15 Clinical significance of Staphylococcus aureus infection in patients with chronic liver diseases. Liver Int 2010 1.52
16 Emergence in Asian countries of Staphylococcus aureus with reduced susceptibility to vancomycin. Antimicrob Agents Chemother 2004 1.48
17 Risk factors for mortality and impact of broad-spectrum cephalosporin resistance on outcome in bacteraemic intra-abdominal infections caused by Gram-negative bacilli. Scand J Infect Dis 2010 1.43
18 Macrolide resistance and genotypic characterization of Streptococcus pneumoniae in Asian countries: a study of the Asian Network for Surveillance of Resistant Pathogens (ANSORP). J Antimicrob Chemother 2004 1.38
19 Risk factors and treatment outcomes of community-onset bacteraemia caused by extended-spectrum beta-lactamase-producing Escherichia coli. Int J Antimicrob Agents 2010 1.32
20 Nonclonal emergence of colistin-resistant Klebsiella pneumoniae isolates from blood samples in South Korea. Antimicrob Agents Chemother 2009 1.29
21 Epidemiology and clinical outcomes of community-acquired pneumonia in adult patients in Asian countries: a prospective study by the Asian network for surveillance of resistant pathogens. Int J Antimicrob Agents 2007 1.26
22 High prevalence of CTX-M-15-producing Klebsiella pneumoniae isolates in Asian countries: diverse clones and clonal dissemination. Int J Antimicrob Agents 2011 1.24
23 Extreme drug resistance in Acinetobacter baumannii infections in intensive care units, South Korea. Emerg Infect Dis 2009 1.22
24 Comparative study of genotype and virulence in CTX-M-producing and non-extended-spectrum-β-lactamase-producing Klebsiella pneumoniae isolates. Antimicrob Agents Chemother 2014 1.21
25 Replicon sequence typing of IncF plasmids and the genetic environments of blaCTX-M-15 indicate multiple acquisitions of blaCTX-M-15 in Escherichia coli and Klebsiella pneumoniae isolates from South Korea. J Antimicrob Chemother 2012 1.17
26 Comparison of capsular genes of Streptococcus pneumoniae serotype 6A, 6B, 6C, and 6D isolates. J Clin Microbiol 2011 1.15
27 Comparison of genotypes and enterotoxin genes between Staphylococcus aureus isolates from blood and nasal colonizers in a Korean hospital. J Korean Med Sci 2009 1.15
28 OprD mutations and inactivation, expression of efflux pumps and AmpC, and metallo-β-lactamases in carbapenem-resistant Pseudomonas aeruginosa isolates from South Korea. Int J Antimicrob Agents 2012 1.14
29 Epidemiology and risk factors of community onset infections caused by extended-spectrum β-lactamase-producing Escherichia coli strains. J Clin Microbiol 2011 1.14
30 Prevalence and molecular characterization of serotype K1 Klebsiella pneumoniae strains from various clinical specimen sources in 11 Asian countries. J Infect 2012 1.13
31 Characteristics of carbapenem-resistant Acinetobacter spp. other than Acinetobacter baumannii in South Korea. Int J Antimicrob Agents 2011 1.12
32 Two distinct clones of carbapenem-resistant Acinetobacter baumannii isolates from Korean hospitals. Diagn Microbiol Infect Dis 2009 1.12
33 Evidence for clonal dissemination of the serotype K1 Klebsiella pneumoniae strain causing invasive liver abscesses in Korea. J Clin Microbiol 2008 1.10
34 Predominance of ST320 among Streptococcus pneumoniae serotype 19A isolates from 10 Asian countries. J Antimicrob Chemother 2011 1.09
35 Clinical and molecular epidemiology of community-onset bacteremia caused by extended-spectrum β-lactamase-producing Escherichia coli over a 6-year period. J Korean Med Sci 2013 1.07
36 Mutant prevention concentrations of colistin for Acinetobacter baumannii, Pseudomonas aeruginosa and Klebsiella pneumoniae clinical isolates. J Antimicrob Chemother 2013 1.07
37 Clinical significance and predictors of community-onset Pseudomonas aeruginosa bacteremia. Am J Med 2008 1.06
38 Changes of serotype and genotype in Streptococcus pneumoniae isolates from a Korean hospital in 2007. Diagn Microbiol Infect Dis 2009 1.05
39 Correlation between overexpression and amino acid substitution of the PmrAB locus and colistin resistance in Acinetobacter baumannii. Int J Antimicrob Agents 2011 1.04
40 Changes in antimicrobial susceptibility and major clones of Acinetobacter calcoaceticus-baumannii complex isolates from a single hospital in Korea over 7 years. J Med Microbiol 2011 1.04
41 Catheter-associated bacteremia by Mycobacterium senegalense in Korea. BMC Infect Dis 2005 1.03
42 Variable recombination dynamics during the emergence, transmission and 'disarming' of a multidrug-resistant pneumococcal clone. BMC Biol 2014 1.03
43 Clinical significance of healthcare-associated infections in community-onset Escherichia coli bacteraemia. J Antimicrob Chemother 2007 1.03
44 Bloodstream infections and clinical significance of healthcare-associated bacteremia: a multicenter surveillance study in Korean hospitals. J Korean Med Sci 2010 1.03
45 Spread of carbapenem-resistant Acinetobacter baumannii global clone 2 in Asia and AbaR-type resistance islands. Antimicrob Agents Chemother 2013 1.02
46 The first case of catheter-related bloodstream infection caused by Nocardia farcinica. J Korean Med Sci 2010 1.01
47 Comparison of CTX-M-14- and CTX-M-15-producing Escherichia coli and Klebsiella pneumoniae isolates from patients with bacteremia. J Infect 2011 1.01
48 Post-influenza pneumonia caused by the USA300 community-associated methicillin-resistant Staphylococcus aureus in Korea. J Korean Med Sci 2012 1.00
49 Characteristics of carbapenem-resistant Enterobacteriaceae isolates from Korea. Diagn Microbiol Infect Dis 2013 1.00
50 Catheter-related candidemia caused by Candida haemulonii in a patient in long-term hospital care. J Korean Med Sci 2011 0.99
51 Fluoroquinolone resistance in clinical isolates of Streptococcus pneumoniae from Asian countries: ANSORP study. Microb Drug Resist 2004 0.98
52 Mycobacterium conceptionense infection complicating face rejuvenation with fat grafting. J Med Microbiol 2010 0.97
53 Use of rpoB sequences for phylogenetic study of Mycoplasma species. FEMS Microbiol Lett 2003 0.97
54 Synergy of arbekacin-based combinations against vancomycin hetero-intermediate Staphylococcus aureus. J Korean Med Sci 2006 0.97
55 Unique variations of pbp2b sequences in penicillin-nonsusceptible Streptococcus pneumoniae isolates from Korea. J Clin Microbiol 2004 0.97
56 Clinical features and treatment outcomes of infections caused by Sphingomonas paucimobilis. Infect Control Hosp Epidemiol 2008 0.97
57 The clinical characteristics, carbapenem resistance, and outcome of Acinetobacter bacteremia according to genospecies. PLoS One 2013 0.95
58 A case of sino-orbital infection caused by the Schizophyllum commune. Diagn Microbiol Infect Dis 2012 0.95
59 Risk factors and pathogenic significance of severe sepsis and septic shock in 2286 patients with gram-negative bacteremia. J Infect 2010 0.93
60 Identification of nonclonal Pseudomonas aeruginosa isolates with reduced colistin susceptibility in Korea. Microb Drug Resist 2011 0.92
61 Genomic variations between colistin-susceptible and -resistant Pseudomonas aeruginosa clinical isolates and their effects on colistin resistance. J Antimicrob Chemother 2014 0.92
62 Comparison of genotypes of Streptococcus pneumoniae serotypes 6A and 6B before and after the introduction of PCV7 vaccination in Korea. Diagn Microbiol Infect Dis 2011 0.91
63 Legionella busanensis sp. nov., isolated from cooling tower water in Korea. Int J Syst Evol Microbiol 2003 0.91
64 Actinomyces cardiffensis septicemia: a case report. Diagn Microbiol Infect Dis 2012 0.91
65 Streptococcus pneumoniae serotype 6D cross-reacting with serotype 6A, 6B, and 6C factor sera. J Clin Microbiol 2010 0.90
66 Antimicrobial activity of doripenem and other carbapenems against gram-negative pathogens from Korea. Microb Drug Resist 2010 0.90
67 Prevalence and characteristics of Streptococcus pneumoniae "putative serotype 6E" isolates from Asian countries. Diagn Microbiol Infect Dis 2014 0.90
68 Clinical outcomes of pneumococcal pneumonia caused by antibiotic-resistant strains in asian countries: a study by the Asian Network for Surveillance of Resistant Pathogens. Clin Infect Dis 2004 0.90
69 A single clone of Acinetobacter baumannii, ST22, is responsible for high antimicrobial resistance rates of Acinetobacter spp. isolates that cause bacteremia and urinary tract infections in Korea. Microb Drug Resist 2010 0.90
70 Effect of carbonyl cyanide 3-chlorophenylhydrazone (CCCP) on killing Acinetobacter baumannii by colistin. J Microbiol 2015 0.90
71 Clinical significance of infections caused by extended-spectrum β-lactamase-producing Enterobacteriaceae blood isolates with inducible AmpC β-lactamase. Microb Drug Resist 2012 0.90
72 Characteristics of community-onset NDM-1-producing Klebsiella pneumoniae isolates. J Med Microbiol 2013 0.90
73 Variations of AbaR4-type resistance islands in Acinetobacter baumannii isolates from South Korea. Antimicrob Agents Chemother 2012 0.89
74 Epidemiology and clinical features of community-onset bacteremia caused by extended-spectrum β-lactamase-producing Klebsiella pneumoniae. Microb Drug Resist 2011 0.89
75 High vancomycin minimum inhibitory concentration is a predictor of mortality in meticillin-resistant Staphylococcus aureus bacteraemia. Int J Antimicrob Agents 2012 0.89
76 Risk factors for infection and treatment outcome of extended-spectrum β-lactamase-producing Escherichia coli and Klebsiella pneumoniae bacteremia in patients with hematologic malignancy. Ann Hematol 2011 0.88
77 Bacteremia caused by Laribacter hongkongensis misidentified as Acinetobacter lwoffii: report of the first case in Korea. J Korean Med Sci 2011 0.88
78 In vitro time-kill studies of antimicrobial agents against blood isolates of imipenem-resistant Acinetobacter baumannii, including colistin- or tigecycline-resistant isolates. J Med Microbiol 2011 0.87
79 Clinical implications of vancomycin-resistant Enterococcus faecium (VRE) with VanD phenotype and vanA genotype. J Antimicrob Chemother 2008 0.87
80 Loss of vancomycin resistance not completely dependent on the Tn1546 element in Enterococcus faecium isolates. Diagn Microbiol Infect Dis 2011 0.87
81 High rate of resistance to quinupristin-dalfopristin in Enterococcus faecium clinical isolates from Korea. Antimicrob Agents Chemother 2005 0.86
82 Selective advantages of two major clones of carbapenem-resistant Pseudomonas aeruginosa isolates (CC235 and CC641) from Korea: antimicrobial resistance, virulence and biofilm-forming activity. J Med Microbiol 2013 0.85
83 AbaR4-type resistance island including the blaOXA-23 gene in Acinetobacter nosocomialis isolates. Antimicrob Agents Chemother 2012 0.84
84 In vitro evaluation of the antibiotic lock technique (ALT) for the treatment of catheter-related infections caused by staphylococci. J Antimicrob Chemother 2006 0.84
85 Clinical features and outcome of Staphylococcus aureus infection in elderly versus younger adult patients. Int J Infect Dis 2010 0.83
86 Distinct groups and antimicrobial resistance of clinical Stenotrophomonas maltophilia complex isolates from Korea. J Med Microbiol 2013 0.83
87 Incorrect identification of Streptococcus pneumoniae and its effect on antimicrobial resistance rates. Int J Antimicrob Agents 2008 0.83
88 Differential expression of two-component systems, pmrAB and phoPQ, with different growth phases of Klebsiella pneumoniae in the presence or absence of colistin. Curr Microbiol 2014 0.83
89 Acinetobacter species isolates from a range of environments: species survey and observations of antimicrobial resistance. Diagn Microbiol Infect Dis 2012 0.83
90 Clinical predictors of community-genotype ST72-methicillin-resistant Staphylococcus aureus-SCCmec type IV in patients with community-onset S. aureus infection. J Antimicrob Chemother 2012 0.82
91 'Neisseria skkuensis' sp. nov., isolated from the blood of a diabetic patient with a foot ulcer. J Med Microbiol 2010 0.82
92 Detection of essential genes in Streptococcus pneumoniae using bioinformatics and allelic replacement mutagenesis. Methods Mol Biol 2008 0.82
93 Repeated isolation of Pseudomonas aeruginosa isolates resistant to both polymyxins and carbapenems from 1 patient. Diagn Microbiol Infect Dis 2012 0.82
94 Identification of genetic recombination between Acinetobacter species based on multilocus sequence analysis. Diagn Microbiol Infect Dis 2012 0.80
95 High frequency of vancomycin-resistant Enterococcus faecium isolates with VanB phenotype and vanA genotype in Korean hospitals. Diagn Microbiol Infect Dis 2006 0.80
96 Efficacy of cefepime therapy for Enterobacter bacteraemia, with special emphasis on febrile neutropenic patients. Scand J Infect Dis 2010 0.80
97 New Erwinia-like organism causing cervical lymphadenitis. J Clin Microbiol 2008 0.79
98 In vitro antibacterial activities of doripenem, imipenem, and meropenem against recent Streptococcus pneumoniae isolates. Diagn Microbiol Infect Dis 2011 0.79
99 In vitro effectiveness of the antibiotic lock technique (ALT) for the treatment of catheter-related infections by Pseudomonas aeruginosa and Klebsiella pneumoniae. J Antimicrob Chemother 2007 0.79
100 Clinical significance of nosocomial acquisition in urinary tract-related bacteremia caused by gram-negative bacilli. Am J Infect Control 2010 0.79
101 In vitro activity of cefditoren: antimicrobial efficacy against major respiratory pathogens from Asian countries. Int J Antimicrob Agents 2006 0.79
102 In vitro activity of cefditoren against clinical isolates of Escherichia coli from a Korean hospital. Int J Antimicrob Agents 2007 0.78
103 Clinical features and outcomes of Staphylococcus aureus infections in non-neutropenic cancer patients. Support Care Cancer 2011 0.78
104 Outcomes and risk factors for mortality in community-onset bacteremia caused by extended-spectrum beta-lactamase-producing Escherichia coli, with a special emphasis on antimicrobial therapy. Scand J Infect Dis 2013 0.78
105 First report of vancomycin-intermediate resistance in sequence type 72 community genotype methicillin-resistant Staphylococcus aureus. J Clin Microbiol 2012 0.77
106 In vitro activities of ertapenem against drug-resistant Streptococcus pneumoniae and other respiratory pathogens from 12 Asian countries. Diagn Microbiol Infect Dis 2006 0.77
107 In vitro activity of tigecycline against colistin-resistant Acinetobacter spp. isolates from Korea. Int J Antimicrob Agents 2008 0.77
108 Comparison of methods for detection of Streptococcus pneumoniae serotype 6C. Diagn Microbiol Infect Dis 2011 0.77
109 Spontaneous bacterial peritonitis caused by Streptococcus pneumoniae in patients with liver cirrhosis. J Infect 2009 0.77
110 Acinetobacter kookii sp. nov., isolated from soil. Int J Syst Evol Microbiol 2013 0.76
111 Analysis of methicillin resistance among Staphylococcus aureus blood isolates in an emergency department. J Korean Med Sci 2007 0.75
112 Hyponatremia and predictive rules for prognosis in adult patients with community-acquired pneumonia. J Infect 2010 0.75
113 Analysis of population structure among Korean and Japanese Legionella pneumophila isolates using hsp60 sequences. Microbiol Immunol 2012 0.75
114 Failure of cefepime therapy in neutropenic patients with extended-spectrum beta-lactamase-producing Gram-negative bacteraemia. Int J Antimicrob Agents 2008 0.75
115 Recombination rates of Streptococcus pneumoniae isolates with both erm(B) and mef(A) genes. FEMS Microbiol Lett 2010 0.75
116 Clinical impacts of a single clone (sequence type 92) of multidrug-resistant Acinetobacter baumannii in intensive care units. Microb Drug Resist 2011 0.75
117 Meticillin-resistant Staphylococcus aureus blood isolates from the emergency department of a tertiary-care hospital in South Korea. Int J Antimicrob Agents 2008 0.75
118 Clinical predictors of Enterobacter bacteremia among patients admitted to the ED. Am J Emerg Med 2010 0.75
119 Corrigendum: Evolved resistance to colistin and its loss due to genetic reversion in Pseudomonas aeruginosa. Sci Rep 2016 0.75
120 Mutant prevention concentrations of colistin used in combination with other antimicrobial agents against Acinetobacter baumannii, Klebsiella pneumoniae and Pseudomonas aeruginosa clinical isolates. Int J Antimicrob Agents 2014 0.75
121 Clinical predictors for enterococcal bacteraemia in patients with bacteraemic intra-abdominal infections. Scand J Infect Dis 2010 0.75