All Stories

  1. Enterococcus faecium TIR-Domain Genes Are Part of a Gene Cluster Which Promotes Bacterial Survival in Blood

    Article • International Journal of Microbiology, December 2018, Hindawi Publishing Corporation

    Dr Rob JL Willems, Dr Janetta Top

  2. Intraluminal Agglutination of E. faecium

    Article • mBio, November 2015, ASM Journals

    Dr Antoni P Hendrickx, Dr Rob JL Willems, Dr Janetta Top

  3. Growth condition-dependent cell surface proteome analysis of Enterococcus faecium

    Article • PROTEOMICS, October 2015, Wiley

    Dr Rob JL Willems, Dr Janetta Top

  4. The impact of host metapopulation structure on the population genetics of colonizing bacteria

    Article • September 2015, Cold Spring Harbor Laboratory Press

    Dr Rob JL Willems, Professor Teresa M. Coque

  5. Molecular epidemiology of Enterococcus faecium

    Article • Journal of Clinical Microbiology, September 2015, ASM Journals

    Dr Rob JL Willems, Prof. Dr. Alexander Mellmann, Dr Janetta Top

  6. Erratum to: Investigating the mobilome in clinically important lineages of Enterococcus faecium and Enterococcus faecalis

    Article • BMC Genomics, September 2015, Springer Science + Business Media

    Dr Rob JL Willems, Professor Teresa M. Coque

  7. Distinct SagA from Hospital-Associated Clade A1 Enterococcus faecium Strains Contributes to Biofilm Formation

    Article • Applied and Environmental Microbiology, July 2015, ASM Journals

    Dr Rob JL Willems

  8. Environmental survival of vancomycin-sensitive ampicillin-resistant Enterococcus faecium (AREfm)

    Article • European Journal of Clinical Microbiology & Infectious Diseases, July 2015, Springer Science + Business Media

    Dr Rob JL Willems, Dr Janetta Top

  9. Investigating the mobilome in clinically important lineages of Enterococcus faecium and Enterococcus faecalis

    Article • BMC Genomics, April 2015, Springer Science + Business Media

    Dr Rob JL Willems, Professor Teresa M. Coque

  10. What Is the Origin of Livestock-Associated Methicillin-Resistant Staphylococcus aureus Clonal Complex 398 Isolates from Humans without Livestock Contact? An Epidemiological and Genetic Analysis

    Article • Journal of Clinical Microbiology, March 2015, ASM Journals

    Dr Rob JL Willems

  11. A Genomic Virulence Reference Map of Enterococcus faecalis Reveals an Important Contribution of Phage03-Like Elements in Nosocomial Genetic Lineages to Pathogenicity in a Caenorhabditis elegans Infection Model

    Article • Infection and Immunity, March 2015, ASM Journals

    Dr Rob JL Willems

  12. Genetic relatedness and risk factor analysis of ampicillin-resistant and high-level gentamicin-resistant enterococci causing bloodstream infections in Tanzanian children

    Article • BMC Infectious Diseases, January 2015, Springer Science + Business Media

    Dr Rob JL Willems

  13. Population Biology of Intestinal Enterococcus Isolates from Hospitalized and Nonhospitalized Individuals in Different Age Groups

    Article • Applied and Environmental Microbiology, December 2014, ASM Journals

    Professor Teresa M. Coque, Professor Fernando Baquero, Dr Rob JL Willems

  14. Dissemination of Cephalosporin Resistance Genes between Escherichia coli Strains from Farm Animals and Humans by Specific Plasmid Lineages

    Article • PLoS Genetics, December 2014, PLOS

    Dr Rob JL Willems

  15. Multiple-Locus Variable Number Tandem Repeat Analysis Typing of Vancomycin-Resistant Enterococcus faecium in Serbia

    Article • Infection Control, December 2013, Cambridge University Press

    Dr Rob JL Willems, Dr Janetta Top

  16. Emergence of Epidemic Multidrug-Resistant Enterococcus faecium from Animal and Commensal Strains

    Article • mBio, August 2013, ASM Journals

    Dr Rob JL Willems, Michael Gilmore

  17. A LacI-Family Regulator Activates Maltodextrin Metabolism of Enterococcus faecium

    Article • PLoS ONE, August 2013, PLOS

    Dr Rob JL Willems

  18. The cell wall architecture ofEnterococcus faecium: from resistance to pathogenesis

    Article • Future Microbiology, August 2013, Future Medicine

    Dr Rob JL Willems

  19. Recent Recombination Events in the Core Genome Are Associated with Adaptive Evolution in Enterococcus faecium

    Article • Genome Biology and Evolution, July 2013, Oxford University Press (OUP)

    Dr Rob JL Willems

  20. 140 Population structure of Pseudomonas aeruginosa and the prevalence of epidemic clones in patients with cystic fibrosis over four years

    Article • Journal of Cystic Fibrosis, June 2013, Elsevier

    Dr Rob JL Willems

  21. The Enterococcus faecium Enterococcal Biofilm Regulator, EbrB, Regulates the esp Operon and Is Implicated in Biofilm Formation and Intestinal Colonization

    Article • PLoS ONE, May 2013, PLOS

    Dr Rob JL Willems, Dr Janetta Top

  22. Shared reservoir of ccrB gene sequences between coagulase-negative staphylococci and methicillin-resistant Staphylococcus aureus

    Article • Journal of Antimicrobial Chemotherapy, April 2013, Oxford University Press (OUP)

    Dr Rob JL Willems

  23. Enterococcus faecium Biofilm Formation: Identification of Major Autolysin AtlAEfm, Associated Acm Surface Localization, and AtlAEfm-Independent Extracellular DNA Release

    Article • mBio, April 2013, ASM Journals

    Dr Rob JL Willems

  24. Identification of a Genetic Determinant in Clinical Enterococcus faecium Strains That Contributes to Intestinal Colonization During Antibiotic Treatment

    Article • The Journal of Infectious Diseases, February 2013, Oxford University Press (OUP)

    Dr Rob JL Willems, Dr Janetta Top

  25. Functional genomic analysis of bile salt resistance in Enterococcus faecium

    Article • BMC Genomics, January 2013, Springer Science + Business Media

    Dr Rob JL Willems, Dr Janetta Top

  26. Pseudomonas aeruginosa Genotype Prevalence in Dutch Cystic Fibrosis Patients and Age Dependency of Colonization by Various P. aeruginosa Sequence Types

    Article • Journal of Clinical Microbiology, December 2012, ASM Journals

    Dr Rob JL Willems

  27. Correction: Rhesus Macaques (Macaca mulatta) Are Natural Hosts of Specific Staphylococcus aureus Lineages

    Article • PLoS ONE, August 2012, PLOS

    Dr Rob JL Willems

  28. AsrR Is an Oxidative Stress Sensing Regulator Modulating Enterococcus faecium Opportunistic Traits, Antimicrobial Resistance, and Pathogenicity

    Article • PLoS Pathogens, August 2012, PLOS

    Dr Rob JL Willems

  29. Restricted Gene Flow among Hospital Subpopulations of Enterococcus faecium

    Article • mBio, July 2012, ASM Journals

    Dr Rob JL Willems, Dr Janetta Top

  30. Genome-Wide Identification of Ampicillin Resistance Determinants in Enterococcus faecium

    Article • PLoS Genetics, June 2012, PLOS

    Dr Rob JL Willems

  31. MLST typing of Enterococcus faecium and Enterococcus faecalis recovered from healthy pigs and chickens across Europe and sequence type comparisons with the international MLST database

    Article • International Journal of Infectious Diseases, June 2012, Elsevier

    Dr Rob JL Willems

  32. Hospital and Community Ampicillin-Resistant Enterococcus faecium Are Evolutionarily Closely Linked but Have Diversified through Niche Adaptation

    Article • PLoS ONE, February 2012, PLOS

    Dr Rob JL Willems

  33. Dynamics of ampicillin-resistant Enterococcus faecium clones colonizing hospitalized patients: Data from a prospective observational study

    Article • BMC Infectious Diseases, January 2012, Springer Science + Business Media

    Dr Rob JL Willems, Dr Janetta Top

  34. Optimizing future treatment of enterococcal infections: attacking the biofilm?

    Article • Trends in Microbiology, January 2012, Elsevier

    Dr Rob JL Willems

  35. Insight into antimicrobial susceptibility and population structure of contemporary human Enterococcus faecalis isolates from Europe

    Article • Journal of Antimicrobial Chemotherapy, December 2011, Oxford University Press (OUP)

    Dr Rob JL Willems

  36. Contribution of the enterococcal surface protein Esp to pathogenesis of Enterococcus faecium endocarditis

    Article • Microbes and Infection, December 2011, Elsevier

    Dr Rob JL Willems

  37. Rhesus Macaques (Macaca mulatta) Are Natural Hosts of Specific Staphylococcus aureus Lineages

    Article • PLoS ONE, October 2011, PLOS

    Dr Rob JL Willems

  38. Population biology of Gram-positive pathogens: high-risk clones for dissemination of antibiotic resistance

    Article • FEMS Microbiology Reviews, September 2011, Oxford University Press (OUP)

    Dr Rob JL Willems

  39. High-density fecal Enterococcus faecium colonization in hospitalized patients is associated with the presence of the polyclonal subcluster CC17

    Article • European Journal of Clinical Microbiology & Infectious Diseases, July 2011, Springer Science + Business Media

    Dr Rob JL Willems

  40. Wide Dispersion of ST175 Clone despite High Genetic Diversity of Carbapenem-Nonsusceptible Pseudomonas aeruginosa Clinical Strains in 16 Spanish Hospitals

    Article • Journal of Clinical Microbiology, June 2011, ASM Journals

    Dr Rob JL Willems, Dr Rosa del Campo

  41. First outbreak of VIM-2 metallo-β-lactamase-producing Pseudomonas aeruginosa in The Netherlands: microbiology, epidemiology and clinical outcomes

    Article • International Journal of Antimicrobial Agents, June 2011, Elsevier

    Dr Rob JL Willems

  42. Intra- and Interspecies Genomic Transfer of the Enterococcus faecalis Pathogenicity Island

    Article • PLoS ONE, April 2011, PLOS

    Dr Rob JL Willems, Dr Janetta Top

  43. Environmental survival of vancomycin-resistant Enterococcus faecium

    Article • Journal of Hospital Infection, March 2011, Elsevier

    Dr Rob JL Willems, Dr Janetta Top

  44. Clinical impact of a highly prevalent Pseudomonas aeruginosa clone in Dutch cystic fibrosis patients

    Article • Clinical Microbiology and Infection, March 2011, Elsevier

    Dr Rob JL Willems

  45. Genetic Variation in Spatio-Temporal Confined USA300 Community-Associated MRSA Isolates: A Shift from Clonal Dispersion to Genetic Evolution?

    Article • PLoS ONE, February 2011, PLOS

    Dr Rob JL Willems

  46. Comparative genomic analysis reveals significant enrichment of mobile genetic elements and genes encoding surface structure-proteins in hospital-associated clonal complex 2 Enterococcus faecalis

    Article • BMC Microbiology, January 2011, Springer Science + Business Media

    Dr Rob JL Willems

  47. The Recombinase IntA Is Required for Excision of esp-Containing ICEEfm1 in Enterococcus faecium

    Article • Journal of Bacteriology, December 2010, ASM Journals

    Dr Rob JL Willems, Dr Janetta Top

  48. The Population Genetics of Pseudomonas aeruginosa Isolates from Different Patient Populations Exhibits High-Level Host Specificity

    Article • PLoS ONE, October 2010, PLOS

    Dr Rob JL Willems

  49. A genetic element present on megaplasmids allows Enterococcus faecium to use raffinose as carbon source

    Article • Environmental Microbiology, October 2010, Wiley

    Dr Rob JL Willems

  50. ccrABEnt serine recombinase genes are widely distributed in the Enterococcus faecium and Enterococcus casseliflavus species groups and are expressed in E. faecium

    Article • Microbiology, September 2010, Society for General Microbiology

    Dr Rob JL Willems

  51. Insights into the biofilm lifestyle of enterococci

    Article • Virulence, July 2010, Taylor & Francis

    Dr Rob JL Willems

  52. Differential PilA pilus assembly by a hospital-acquired and a community-derived Enterococcus faecium isolate

    Article • Microbiology, June 2010, Society for General Microbiology

    Dr Rob JL Willems

  53. Enterococcal surface protein contributes to persistence in the host but is not a target of opsonic and protective antibodies in Enterococcus faecium infection

    Article • Journal of Medical Microbiology, June 2010, Society for General Microbiology

    Dr Rob JL Willems

  54. Enterococcus research: recent developments and clinical challenges

    Article • Clinical Microbiology and Infection, June 2010, Elsevier

    Dr Rob JL Willems

  55. Population Genetics ofEnterococcus

    Article • April 2010, Wiley

    Dr Rob JL Willems

  56. Enterococcus research - recent developments and clinical challenges

    Article • Clinical Microbiology and Infection, March 2010, Elsevier

    Dr Rob JL Willems

  57. Genome-based insights into the evolution of enterococci.

    Article • Clinical Microbiology and Infection, March 2010, Elsevier

    Dr Rob JL Willems

  58. The Complement System Facilitates Clearance of Enterococcus faecium during Murine Peritonitis

    Article • The Journal of Infectious Diseases, February 2010, Oxford University Press (OUP)

    Dr Rob JL Willems

  59. Pyrosequencing-based comparative genome analysis of the nosocomial pathogen Enterococcus faecium and identification of a large transferable pathogenicity island

    Article • BMC Genomics, January 2010, Springer Science + Business Media

    Dr Rob JL Willems, Dr Janetta Top

  60. Effects of reducing beta-lactam antibiotic pressure on intestinal colonization of antibiotic-resistant gram-negative bacteria

    Article • Intensive Care Medicine, November 2009, Springer Science + Business Media

    Dr Rob JL Willems, Dr Janetta Top

  61. Transition ofEnterococcus faeciumfrom commensal organism to nosocomial pathogen

    Article • Future Microbiology, November 2009, Future Medicine

    Dr Rob JL Willems

  62. Pseudomonas aeruginosa Genotype Prevalence in Dutch Cystic Fibrosis Patients and Age Dependency of Colonization by Various P. aeruginosa Sequence Types

    Article • Journal of Clinical Microbiology, October 2009, ASM Journals

    Dr Rob JL Willems

  63. Enterococcal Surface Protein Transiently Aggravates Enterococcus faecium –Induced Urinary Tract Infection in Mice

    Article • The Journal of Infectious Diseases, October 2009, Oxford University Press (OUP)

    Dr Rob JL Willems

  64. SgrA, a Nidogen-Binding LPXTG Surface Adhesin Implicated in Biofilm Formation, and EcbA, a Collagen Binding MSCRAMM, Are Two Novel Adhesins of Hospital-Acquired Enterococcus faecium

    Article • Infection and Immunity, September 2009, ASM Journals

    Dr Rob JL Willems

  65. LPxTG surface proteins of enterococci

    Article • Trends in Microbiology, September 2009, Elsevier

    Dr Rob JL Willems

  66. The acute-phase response impairs host defence againstEnterococcus faeciumperitonitis

    Article • Immunology, September 2009, Wiley

    Dr Rob JL Willems

  67. Intestinal Enterococcus faecium Colonization Improves Host Defense during Polymicrobial Peritonitis

    Article • The Journal of Infectious Diseases, September 2009, Oxford University Press (OUP)

    Dr Rob JL Willems

  68. Intestinal Colonization with Enterococcus faecium Does Not Influence Pulmonary Defense against Pseudomonas aeruginosa in Mice

    Article • PLoS ONE, August 2009, PLOS

    Dr Rob JL Willems, Dr Janetta Top

  69. A Trilocus Sequence Typing Scheme for Hospital Epidemiology and Subspecies Differentiation of an Important Nosocomial Pathogen, Enterococcus faecalis

    Article • Journal of Clinical Microbiology, July 2009, ASM Journals

    Dr Rob JL Willems

  70. Molecular characterisation of outbreak-related strains of vancomycin-resistant Enterococcus faecium from an intensive care unit in Beijing, China

    Article • Journal of Hospital Infection, June 2009, Elsevier

    Dr Rob JL Willems

  71. Genetic Variation and Evolution of the Pathogenicity Island of Enterococcus faecalis

    Article • Journal of Bacteriology, March 2009, ASM Journals

    Dr Rob JL Willems

  72. Dogs Are a Reservoir of Ampicillin-Resistant Enterococcus faecium Lineages Associated with Human Infections

    Article • Applied and Environmental Microbiology, February 2009, ASM Journals

    Dr Rob JL Willems, Professor Luca Guardabassi, Dr Janetta Top

  73. Cecal ligation and puncture induced sepsis impairs host defense against Enterococcus faecium peritonitis

    Article • Intensive Care Medicine, February 2009, Springer Science + Business Media

    Dr Rob JL Willems

  74. Peritoneal macrophages are important for the early containment of Enterococcus faecium peritonitis in mice

    Article • Innate Immunity, February 2009, SAGE Publications

    Dr Rob JL Willems

  75. New methods to analyse microarray data that partially lack a reference signal

    Article • BMC Genomics, January 2009, Springer Science + Business Media

    Dr Rob JL Willems

  76. Enterococcal surface protein Esp is not essential for cell adhesion and intestinal colonization of Enterococcus faecium in mice

    Article • BMC Microbiology, January 2009, Springer Science + Business Media

    Dr Rob JL Willems

  77. Longer Intestinal Persistence of Enterococcus faecalis Compared to Enterococcus faecium Clones in Intensive-Care-Unit Patients

    Article • Journal of Clinical Microbiology, December 2008, ASM Journals

    Dr Rob JL Willems, Dr Rosa del Campo

  78. Neutrophils Are Essential for Rapid Clearance of Enterococcus faecium in Mice

    Article • Infection and Immunity, November 2008, ASM Journals

    Dr Rob JL Willems

  79. Identification of a Novel Genomic Island Specific to Hospital-Acquired Clonal Complex 17 Enterococcus faecium Isolates

    Article • Applied and Environmental Microbiology, October 2008, ASM Journals

    Dr Rob JL Willems

  80. Expression of two distinct types of pili by a hospital-acquired Enterococcus faecium isolate

    Article • Microbiology, October 2008, Society for General Microbiology

    Dr Rob JL Willems

  81. High acquisition and environmental contamination rates of CC17 ampicillin-resistant Enterococcus faecium in a Dutch hospital

    Article • Journal of Antimicrobial Chemotherapy, September 2008, Oxford University Press (OUP)

    Dr Rob JL Willems, Dr Janetta Top

  82. Novel Multiple-Locus Variable-Number Tandem-Repeat Analysis Method for Rapid Molecular Typing of Human Staphylococcus aureus

    Article • Journal of Clinical Microbiology, July 2008, ASM Journals

    Dr Rob JL Willems

  83. Emergence of CC17 Enterococcus faecium : from commensal to hospital-adapted pathogen

    Article • FEMS Immunology & Medical Microbiology, April 2008, Oxford University Press (OUP)

    Dr Rob JL Willems, Dr Janetta Top

  84. Comparison of multiple-locus variable-number tandem repeat analysis and pulsed-field gel electrophoresis in a setting of polyclonal endemicity of vancomycin-resistant Enterococcus faecium

    Article • Clinical Microbiology and Infection, April 2008, Elsevier

    Dr Rob JL Willems, Dr Janetta Top

  85. TLR2-Dependent MyD88 Signaling Contributes to Early Host Defense in Murine Enterococcus faecium Peritonitis

    Article • The Journal of Immunology, March 2008, The American Association of Immunologists

    Dr Rob JL Willems

  86. Molecular characterization of vancomycin-resistant Enterococcus spp. clinical isolates from Hungary and Serbia

    Article • Scandinavian Journal of Infectious Diseases, January 2008, Taylor & Francis

    Dr Rob JL Willems, Dr Janetta Top

  87. Emergence of Clonal Complex 17 Enterococcus faecium in The Netherlands

    Article • Journal of Clinical Microbiology, October 2007, ASM Journals

    Dr Rob JL Willems, Dr Janetta Top

  88. Los complejos clonales de alto riesgo CC2 y CC9 están ampliamente representados en cepas hospitalarias de Enterococcus faecalis aisladas en España

    Article • Enfermedades Infecciosas y Microbiología Clínica, October 2007, Elsevier

    Professor Fernando Baquero, Dr Rosa del Campo, Dr Rob JL Willems, Professor Teresa M. Coque

  89. Five Genes Encoding Surface-Exposed LPXTG Proteins Are Enriched in Hospital-Adapted Enterococcus faecium Clonal Complex 17 Isolates

    Article • Journal of Bacteriology, September 2007, ASM Journals

    Dr Rob JL Willems

  90. Enterococcal Surface Protein Esp Is Important for Biofilm Formation of Enterococcus faecium E1162

    Article • Journal of Bacteriology, September 2007, ASM Journals

    Dr Rob JL Willems

  91. Glycopeptide-resistant enterococci: deciphering virulence, resistance and epidemicity

    Article • Current Opinion in Infectious Diseases, August 2007, Wolters Kluwer Health

    Dr Rob JL Willems

  92. P694 Nationwide increase of invasive ampicillin resistant Enterococcus faecium in the Netherlands

    Article • International Journal of Antimicrobial Agents, March 2007, Elsevier

    Dr Rob JL Willems

  93. Ecological replacement of Enterococcus faecalis by multiresistant clonal complex 17 Enterococcus faecium

    Article • Clinical Microbiology and Infection, March 2007, Elsevier

    Dr Rob JL Willems, Dr Janetta Top

  94. Insertion Sequence–Driven Diversification Creates a Globally Dispersed Emerging Multiresistant Subspecies of E. faecium

    Article • PLoS Pathogens, January 2007, PLOS

    Dr Rob JL Willems

  95. Genetic and phenotypic differences among Enterococcus faecalis clones from intestinal colonisation and invasive disease

    Article • Clinical Microbiology and Infection, December 2006, Elsevier

    Dr Rob JL Willems

  96. Growth Condition-Dependent Esp Expression by Enterococcus faecium Affects Initial Adherence and Biofilm Formation

    Article • Infection and Immunity, November 2006, ASM Journals

    Dr Rob JL Willems, Dr Janetta Top

  97. Clonal Structure of Enterococcus faecalis Isolated from Polish Hospitals: Characterization of Epidemic Clones

    Article • Journal of Clinical Microbiology, November 2006, ASM Journals

    Dr Rob JL Willems

  98. Identification of high-risk enterococcal clonal complexes: global dispersion and antibiotic resistance

    Article • Current Opinion in Microbiology, October 2006, Elsevier

    Dr Rob JL Willems

  99. Presence of Pathogenicity Island Genes in Enterococcus faecalis Isolates from Pigs in Denmark

    Article • Journal of Clinical Microbiology, September 2006, ASM Journals

    Dr Rob JL Willems

  100. Multilocus Sequence Typing Scheme for Enterococcus faecalis Reveals Hospital-Adapted Genetic Complexes in a Background of High Rates of Recombination

    Article • Journal of Clinical Microbiology, June 2006, ASM Journals

    Dr Rob JL Willems, Dr Janetta Top

  101. Multilocus Sequence Typing of Hospital-Associated Enterococcus faecium from Brazil Reveals Their Unique Evolutionary History

    Article • Microbial Drug Resistance, June 2006, Mary Ann Liebert Inc

    Dr Rob JL Willems, Dr Janetta Top

  102. Genotyping and Preemptive Isolation to Control an Outbreak of Vancomycin-Resistant Enterococcus faecium

    Article • Clinical Infectious Diseases, March 2006, Oxford University Press (OUP)

    Dr Rob JL Willems

  103. High-Level Ciprofloxacin Resistance from Point Mutations in gyrA and parC Confined to Global Hospital-Adapted Clonal Lineage CC17 of Enterococcus faecium

    Article • Journal of Clinical Microbiology, March 2006, ASM Journals

    Dr Rob JL Willems, Dr Janetta Top

  104. Population Structure of Enterococcus faecium Causing Bacteremia in a Spanish University Hospital: Setting the Scene for a Future Increase in Vancomycin Resistance?

    Article • Antimicrobial Agents and Chemotherapy, July 2005, ASM Journals

    Dr Rob JL Willems, Dr Janetta Top

  105. Emergence of Virulent Methicillin-Resistant Staphylococcus aureus Strains Carrying Panton-Valentine Leucocidin Genes in The Netherlands

    Article • Journal of Clinical Microbiology, July 2005, ASM Journals

    Dr Rob JL Willems

  106. Global Spread of Vancomycin-resistant Enterococcus faecium from Distinct Nosocomial Genetic Complex

    Article • Emerging Infectious Diseases, June 2005, Centers for Disease Control and Prevention (CDC)

    Professor Fernando Baquero, Dr Rob JL Willems, Professor Teresa M. Coque, Dr Janetta Top

  107. Molecular Analysis of Human, Porcine, and Poultry Enterococcus faecium Isolates and Their erm(B) Genes

    Article • Applied and Environmental Microbiology, May 2005, ASM Journals

    Professor Freddy Haesebrouck, Dr Rob JL Willems, Dr Janetta Top

  108. Multiple-Locus Variable-Number Tandem Repeat Analysis, a Novel Typing Scheme To Study the Genetic Relatedness and Epidemiology of Enterococcus faecium Isolates

    Article • Journal of Clinical Microbiology, October 2004, ASM Journals

    Dr Rob JL Willems, Dr Janetta Top

  109. Multilocus Variable-Number Tandem-Repeat Polymorphism among Brazilian Enterococcus faecalis Strains

    Article • Journal of Clinical Microbiology, October 2004, ASM Journals

    Dr Rob JL Willems, Dr Janetta Top

  110. Widespread Dissemination in The Netherlands of the Epidemic Berlin Methicillin-Resistant Staphylococcus aureus Clone with Low-Level Resistance to Oxacillin

    Article • Journal of Clinical Microbiology, July 2004, ASM Journals

    Dr Rob JL Willems

  111. Duplex Real-Time PCR Assay for Rapid Detection of Ampicillin-Resistant Enterococcus faecium

    Article • Antimicrobial Agents and Chemotherapy, February 2004, ASM Journals

    Dr Rob JL Willems, Dr Janetta Top

  112. A Novel Putative Enterococcal Pathogenicity Island Linked to the esp Virulence Gene of Enterococcus faecium and Associated with Epidemicity

    Article • Journal of Bacteriology, February 2004, ASM Journals

    Dr Rob JL Willems, Dr Janetta Top

  113. Comparative analysis of amplified fragment length polymorphism and pulsed field gel electrophoresis in a hospital outbreak and subsequent endemicity of ampicillin-resistant Enterococcus faecium

    Article • FEMS Immunology & Medical Microbiology, January 2004, Oxford University Press (OUP)

    Dr Rob JL Willems

  114. Detection of Enterococcal Surface Protein Gene (esp) and Amplified Fragment Length Polymorphism Typing of Glycopeptide-Resistant Enterococcus faecium during Its Emergence in a Greek Intensive Care Unit

    Article • Journal of Clinical Microbiology, December 2003, ASM Journals

    Dr Rob JL Willems

  115. Mutations in the DNA Mismatch Repair Proteins MutS and MutL of Oxazolidinone-Resistant or -Susceptible Enterococcus faecium

    Article • Antimicrobial Agents and Chemotherapy, October 2003, ASM Journals

    Dr Rob JL Willems, Dr Janetta Top

  116. Epidemic and Nonepidemic Multidrug-Resistant Enterococcus faecium

    Article • Emerging Infectious Diseases, September 2003, Centers for Disease Control and Prevention (CDC)

    Dr Rob JL Willems, Dr Janetta Top

  117. Molecular Characterization of Ampicillin-Resistant Enterococcus faecium Isolates from Hospitalized Patients in Norway

    Article • Journal of Clinical Microbiology, June 2003, ASM Journals

    Dr Rob JL Willems, Dr Janetta Top

  118. Genetic characterization of glycopeptide-resistant enterococci of human and animal origin from mixed pig and poultry farms

    Article • Apmis, June 2003, Wiley

    Dr Rob JL Willems

  119. Influence of Transferable Genetic Determinants on the Outcome of Typing Methods Commonly Used for Enterococcus faecium

    Article • Journal of Clinical Microbiology, April 2003, ASM Journals

    Dr Rob JL Willems

  120. Different Levels of Genetic Homogeneity in Vancomycin-Resistant and -Susceptible Enterococcus faecium Isolates from Different Human and Animal Sources Analyzed by Amplified-Fragment Length Polymorphism

    Article • Antimicrobial Agents and Chemotherapy, September 2002, ASM Journals

    Dr Rob JL Willems

  121. Multilocus Sequence Typing Scheme for Enterococcus faecium

    Article • Journal of Clinical Microbiology, September 2002, ASM Journals

    Dr Rob JL Willems

  122. Vancomycin-Resistant Enterococcus faecium (VREF) from Norwegian Poultry Cluster with VREF from Poultry from the United Kingdom and The Netherlands in an Amplified Fragment Length Polymorphism Genogroup

    Article • Applied and Environmental Microbiology, June 2002, ASM Journals

    Dr Rob JL Willems

  123. Multilocus Sequence Typing Scheme for Enterococcus faecium

    Article • Journal of Clinical Microbiology, June 2002, ASM Journals

    Dr Rob JL Willems

  124. Automated Ribotyping of Vancomycin-Resistant Enterococcus faecium Isolates

    Article • Journal of Clinical Microbiology, June 2002, ASM Journals

    Dr Rob JL Willems

  125. Genogrouping and Incidence of Virulence Factors of Enterococcus faecalis in Liver Transplant Patients Differ from Blood Culture and Fecal Isolates

    Article • The Journal of Infectious Diseases, April 2002, Oxford University Press (OUP)

    Dr Rob JL Willems

  126. Vancomycin-resistant enterococci: why are they here, and where do they come from?

    Article • The Lancet Infectious Diseases, December 2001, Elsevier

    Dr Rob JL Willems

  127. Variant esp gene as a marker of a distinct genetic lineage of vancomycinresistant Enterococcus faecium spreading in hospitals

    Article • The Lancet, March 2001, Elsevier

    Dr Rob JL Willems, Dr Janetta Top

  128. Host Specificity of Vancomycin‐Resistant Enterococcus faecium

    Article • The Journal of Infectious Diseases, September 2000, Oxford University Press (OUP)

    Dr Rob JL Willems, Dr Janetta Top

  129. The efficacy of a whole cell pertussis vaccine and fimbriae against Bordetella pertussis and Bordetella parapertussis infections in a respiratory mouse model

    Article • Vaccine, February 1998, Elsevier

    Dr Rob JL Willems, Dr Janetta Top

  130. Role of Bordetella pertussis virulence factors in the adherence to human epithelium derived from the respiratory tract

    Article • Immunology Letters, May 1997, Elsevier

    Dr Rob JL Willems

  131. Genetic organization and functional analysis of the otn DNA essential for cell‐wall polysaccharide synthesis in Vibrio cholerae O139

    Article • Molecular Microbiology, May 1996, Wiley

    Professor Frits R Mooi, Dr Rob JL Willems

  132. From whole cell to acellular pertussis vaccines

    Article • Reviews in Medical Microbiology, January 1996, Wolters Kluwer Health

    Professor Frits R Mooi, Dr Rob JL Willems

  133. Mutational analysis of the Bordetella pertussis fim/fha gene cluster: identification of a gene with sequence similarities to haemolysin accessory genes involved in export of FHA

    Article • Molecular Microbiology, January 1994, Wiley

    Professor Frits R Mooi, Dr Rob JL Willems

  134. Isolation of a putative fimbrial adhesin from Bordetella pertussis and the identification of its gene

    Article • Molecular Microbiology, August 1993, Wiley

    Professor Frits R Mooi, Dr Rob JL Willems

  135. Organization and Function of Genes Involved in Biogenesis of FHA and Fimbriae

    Article • Biologicals, March 1993, Elsevier

    Professor Frits R Mooi, Dr Rob JL Willems

  136. Regulation of the Genes Involved in the Biogenesis of FHA and Fimbriae

    Article • Biologicals, March 1993, Elsevier

    Professor Frits R Mooi, Dr Rob JL Willems

  137. Isolation and Characterization of Fim D, a Fimbrial Associated Protein of Bordetella pertussis

    Article • Biologicals, March 1993, Elsevier

    Professor Frits R Mooi, Dr Rob JL Willems

  138. A Novel Gene Involved in FHA Biogenesis

    Article • Biologicals, March 1993, Elsevier

    Professor Frits R Mooi, Dr Rob JL Willems

  139. Characterization of a Bordetella pertussis fimbrial gene cluster which is located directly downstream of the filamentous haemagglutinin gene

    Article • Molecular Microbiology, September 1992, Wiley

    Professor Frits R Mooi, Dr Rob JL Willems

  140. Enterococcus

    Article • Springer Science + Business Media

    Dr Rob JL Willems