Charlotte Michel

ORCID: 0000-0003-0250-2664
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Research Areas
  • Legionella and Acanthamoeba research
  • Bacterial biofilms and quorum sensing
  • SARS-CoV-2 and COVID-19 Research
  • COVID-19 Clinical Research Studies
  • Bacterial Infections and Vaccines
  • Antimicrobial Resistance in Staphylococcus
  • Bacterial Identification and Susceptibility Testing
  • SARS-CoV-2 detection and testing
  • Long-Term Effects of COVID-19
  • Vibrio bacteria research studies
  • Pneumonia and Respiratory Infections
  • Antibiotic Resistance in Bacteria
  • Trace Elements in Health
  • Monoclonal and Polyclonal Antibodies Research
  • Infectious Encephalopathies and Encephalitis
  • Antifungal resistance and susceptibility
  • RNA and protein synthesis mechanisms
  • vaccines and immunoinformatics approaches
  • Pneumocystis jirovecii pneumonia detection and treatment
  • Biosensors and Analytical Detection
  • Infective Endocarditis Diagnosis and Management
  • Cystic Fibrosis Research Advances
  • Streptococcal Infections and Treatments
  • Ocular Infections and Treatments
  • COVID-19 and Mental Health

Universitair Ziekenhuis Brussel
2023-2025

Vrije Universiteit Brussel
2024-2025

Université Libre de Bruxelles
2021-2024

European Society of Clinical Microbiology and Infectious Diseases
2024

Rega Institute for Medical Research
2024

KU Leuven
2024

Norwegian Institute of Public Health
2023

Centre Hospitalier Universitaire Brugmann
2020

Université de Lille
2018

Centre Hospitalier Universitaire de Lille
2018

Abstract Objectives In August 2018, a public health alert was issued in Belgium regarding clusters of impetigo cases caused by the epidemic European fusidic acid-resistant clone (EEFIC) Staphylococcus aureus. As result, Belgian national reference centre (NRC) commissioned to update epidemiology S. aureus causing community-onset skin and soft tissues infection (CO-SSTI) assess proportion EEFIC among them. Methods For 1 year, clinical laboratories were asked send their first three isolated...

10.1093/jac/dkad204 article EN cc-by-nc Journal of Antimicrobial Chemotherapy 2023-06-26

Introduction. Haemophilus influenzae ( Hi ) was long known as an easy-to-treat bacterium, but increasing resistance against beta-lactams and other critically important antibiotics is now a growing concern. We describe here the whole-genome sequencing (WGS) analysis of three non-typeable isolates received in 2018–2019 by Belgian National Reference Centre (NRC) for , they presented unusual multi-resistant profile. Methods. All were sequenced WGS mapped to reference isolate Rd KW20. Shorten...

10.1099/acmi.0.000649.v3 article EN cc-by-nc Access Microbiology 2024-02-01

The Omicron variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerged in the general population context a relatively high immunity gained through early waves disease 19 (COVID-19), and vaccination campaigns. Despite this context, significant number patients were hospitalized, identifying risk factors associated with era is critical for targeting further preventive, curative interventions. We retrospectively analyzed individual medical records 1501 SARS-CoV-2 positive...

10.3390/v14122736 article EN cc-by Viruses 2022-12-08
Lize Cuypers Els Keyaerts Samuel L. Hong Sarah Gorissen Soraya Maria Menezes and 95 more Márick Rodrigues Starick Jan Van Elslande Matthias Weemaes Tony Wawina-Bokalanga Joan Martí‐Carreras Bert Vanmechelen Bram Van Holm Mandy Bloemen Jean‐Michel Dogné François E. Dufrasne Keith Durkin Jean Ruelle Ricardo De Mendonça Elke Wollants Pieter Vermeersch Ruddy Wattiez Michael Peeters Kate Bakelants Sarah Denayer François E. Dufrasne Cécile Meex Laurent Gillet Maria Artesi Marie‐Pierre Hayette Sébastien Bontems Vincent Bours Claire Gourzonès Olivier Ek Fabrice Bureau Benoît Kabamba Jean‐Luc Gala Bertrand Bearzatto Jérôme Ambroise Arnaud Marchant Coralie Henin Benoît Haerlingen Ricardo De Mendonça Marie‐Luce Delforge Carl Vael Lynsey Berckmans Philippe Selhorst Kevin K. Ariën Sonia Van Dooren Bruno Hinckel Hideo Imamura Toon Janssen Ben Caljon Oriane Soetens Denis Piérard Thomas Demuyser Charlotte Michel Olivier Vandenberg Sigi Van den Wijngaert Giulia Zorzi Philippe Van Lint Walter Verstrepen Reinout Naesens Sarah Van Lent Pascale Hilbert Sylvain Brohée Pierre-Emmanuel Léonard Deniz Karadurmus Jérémie Gras Damien Féret Barbara Lambert Anne Vankeerberghen Astrid Holderbeke Hans De Beenhouwer Lien Cattoir Christine Lammens Basil Britto Xavier Marie Le Mercier Jasmine Coppens Veerle Matheeussen Herman Goossens Geert A. Martens Koen Swaerts Frederik Van Hoecke Dieter Desmet Patrick Descheemaeker Pierre Bogaerts Jonathan Degosserie Olivier Denis Te‐Din Huang Dagmar Obbels Hanne Valgaeren Johan Frans Annick Smismans Paul-Emile Claus Denise Veltman Truus Goegebuer Ann Lemmens Bea Van den Poel Sonja De Bock Wim Laffut

Coronavirus Disease 2019 (COVID-19) vaccination has resulted in excellent protection against fatal disease, including older adults. However, risk factors for post-vaccination COVID-19 are largely unknown. We comprehensively studied three large nursing home outbreaks (20-35% cases among residents) by combining severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) aerosol monitoring, whole-genome phylogenetic analysis and immunovirological profiling of nasal mucosa digital nCounter...

10.1038/s43587-023-00421-1 article EN cc-by Nature Aging 2023-05-22

This first pilot trial on external quality assessment (EQA) of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) whole-genome sequencing, initiated by the European Society Clinical Microbiology and Infectious Diseases (ESCMID) Study Group for Genomic Molecular Diagnostics (ESGMD) Swiss (SSM), aims to build a framework between laboratories in order improve pathogen surveillance sequencing. Ten samples with various viral loads were sent out 15 clinical that had free choice...

10.1128/jcm.01698-21 article EN cc-by Journal of Clinical Microbiology 2021-11-10

Background: Mycoplasma hominis and Ureaplasma spp. are responsible for opportunistic infections in transplant patients, sometimes causing a life-threatening hyperammonemia syndrome. Both pathogens not identified with standard microbiology techniques, resulting missed or delayed diagnosis. We present clinical case that illustrates the added value next-generation sequencing (NGS) may offer diagnosis of respiratory immune-compromised patients. Results: A 55 years-old man idiopathic pulmonary...

10.3389/fmed.2021.684040 article EN cc-by Frontiers in Medicine 2021-07-06

Background Antimicrobial resistance to mupirocin and fusidic acid, which are used for treatment of skin infections caused by Staphylococcus aureus, is concern. Aim To investigate acid in meticillin-susceptible S. aureus (MSSA) from community-acquired soft tissue (SSTIs) Belgium. Methods We collected 2013–2023 data on SSTI-associated MSSA two large Belgian laboratories. Resistant isolates sent the Staphylococci Reference Centre were spa -typed analysed presence eta etb virulence genes mupA...

10.2807/1560-7917.es.2024.29.19.2300668 article EN cc-by Eurosurveillance 2024-05-09
Reile Janssen Lize Cuypers Lies Laenen Els Keyaerts Kurt Beuselinck and 95 more Sunita Janssenswillen Bram Slechten Jannes Bode Elke Wollants Kristel Van Laethem Annabel Rector Mandy Bloemen Anke Sijmons Nathalie de Schaetzen Arnaud Capron Kurt Van Baelen Thierry Pascal Céline Vermeiren Fabrice Bureau Jo Vandesompele Pieter De Smet Wouter Uten Hugues Malonne Pierre Kerkhofs Jo De Cock Veerle Matheeussen Bruno Verhasselt Laurent Gillet Gautier Detry Bertrand Bearzatto Jonathan Degosserie Coralie Henin Gregor Pairoux Emmanuel André Piet Maes Guy Baele Simon Dellicour Lize Cuypers Marc Van Ranst Barney Potter Samuel L. Hong François E. Dufrasne Guillaume Bayon-Vicente Ruddy Wattiez Carl Vael Lynsey Berckmans Philippe Selhorst Kevin K. Ariën Arnaud Marchant Coralie Henin Benoît Haerlingen Ricardo De Mendonça Marie‐Luce Delforge Sonia Van Dooren Bruno Hinckel Hideo Imamura Toon Janssen Ben Caljon Oriane Soetens Denis Piérard Thomas Demuyser Charlotte Michel Olivier Vandenberg Sigi Van den Wijngaert Giulia Zorzi Jean Ruelle Benoît Kabamba Mukadi Jean‐Luc Gala Bertrand Bearzatto Jérôme Ambroise Philippe Van Lint Walter Verstrepen Reinout Naesens Michael Peeters Kate Bakelants Sarah Denayer Sofieke Klamer Pascale Hilbert Sylvain Brohée Pierre-Emmanuel Léonard Deniz Karadurmus Jérémie Gras Damien Féret Barbara Lambert Anne Vankeerberghen Astrid Holderbeke Hans De Beenhouwer Lien Cattoir Christine Lammens Basil Britto Xavier Marie Le Mercier Jasmine Coppens Veerle Matheeussen Herman Goossens Geert A. Martens Koen Swaert Frederik Van Hoecke Dieter Desmet Merijn Vanhee Pierre Bogaerts

Abstract Since the onset of coronavirus disease (COVID-19) pandemic in Belgium, UZ/KU Leuven has played a crucial role as National Reference Centre (NRC) for respiratory pathogens, to be first Belgian laboratory develop and implement developed diagnostic assays SARS-CoV-2 (severe acute syndrome 2) later assess quality commercial kits. To meet growing demand decentralised testing, both clinical laboratories government-supported high-throughput platforms were gradually deployed across Belgium....

10.1186/s12985-024-02308-y article EN cc-by Virology Journal 2024-02-10

Legionella pneumophila can cause a large panel of symptoms beside the classic pneumonia presentation. We present here case fatal nosocomial cellulitis in an immunocompromised patient followed, year later, by second legionnaires’ disease same ward. While first one was easily assumed as based on date onset, other needed to rely clear typing results be either assigned and related environmental source one, or community acquired. To untangle this specific question, we applied Core-genome...

10.20944/preprints202404.0136.v1 preprint EN 2024-04-02

Legionella pneumophila can cause a large panel of symptoms besides the classic pneumonia presentation. Here we present case fatal nosocomial cellulitis in an immunocompromised patient followed, year later, by second Legionnaires’ disease same ward. While first was easily assumed as based on date symptom onset, required clear typing results to be assigned either and related environmental source case, or community acquired. To untangle this specific question, applied core-genome multilocus...

10.3390/microorganisms12050857 article EN cc-by Microorganisms 2024-04-25

Legionnaires' disease (LD) is a severe bacterial infection causing pneumonia. Surveillance commonly underestimates the true incidence as not all cases are laboratory confirmed and reported to public health authorities. The aim of this study was present indicators for impact LD in Belgium between 2013 2017 estimate its burden Belgian population 2017, most recent year which necessary data were available.Belgian hospital discharge data, from three infectious surveillance systems (mandatory...

10.1186/s13690-020-00470-7 article EN cc-by Archives of Public Health 2020-10-07

We investigated the decline of hepatitis B virus surface antigen (HBsAg) and core related (HBcrAg) in chronic patients sussessfully treated with nucleos(t)ide analogues. In plasma viral suppression, baseline median levels HBsAg HBcrAg were 3.1 3.0 log U/mL, respectively. The naïve 4.2 3.6 U/mL for HBcrAg, No significant was observed suppression within a year period. A low reduction during first months after treatment initiation, especially regarding HBcrAg. dynamics these antigens should be...

10.1002/jmv.25028 article EN Journal of Medical Virology 2018-01-10

The translation of Next-Generation Sequencing (NGS) from research to clinical microbiology is increasing rapidly, but its integration into routine care struggles catch-up. A challenge for laboratories that the substantial investments made in required technologies and resources must meet both current forthcoming needs.To get a perspective these needs, we have sent survey infectious diseases clinicians five hospitals, covering following topics: NGS knowledge, expected syndromes patients...

10.3389/fmed.2023.1225408 article EN cc-by Frontiers in Medicine 2023-08-21

<title>Abstract</title> Background Coresistance to both mupirocin and fusidic acid in<italic>Staphylococcus aureus</italic>affects the treatment of impetigo in Belgium, where they are only topical treatments available. Aim We investigated resistance methicillin-susceptible<italic>S. aureus</italic>(MSSA) strains involved community-acquired skin soft tissue infections (SSTIs). Methods The 10-year variation outpatients with SSTI-associated MSSA was studied two large laboratories. coresistant...

10.21203/rs.3.rs-4074618/v1 preprint EN cc-by Research Square (Research Square) 2024-03-12

The incidence of Legionnaires' disease (LD) is increasing steadily in Europe. Its early diagnosis by general practitioners (GPs) crucial for better patient outcomes.

10.3390/idr16050063 article EN cc-by Infectious Disease Reports 2024-08-27

Introduction: Haemophilus influenzae (Hi) was long known as an easy-to-treat bacterium but the rise of resistance against beta-lactams and other critically important antibiotics is now increasing concern. We describe here whole genome sequencing (WGS) analysis three non-typeable Hi isolates received in 2018 – 2019 by Belgian National Reference Centre (NRC) for they presented unusual multi-resistant profile. The were resistant to ampicillin, cefuroxime, cefotaxime, ceftriaxone, ciprofloxacin,...

10.1099/acmi.0.000649.v1 preprint EN cc-by 2023-06-22
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