1
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Wan Y, Ganner M, Mumin Z, Ready D, Moore G, Potterill I, Paranthaman K, Jauneikaite E, Patel B, Harley A, Getino M, Brown CS, Demirjian A, Pichon B. Whole-genome sequencing reveals widespread presence of Staphylococcus capitis NRCS-A clone in neonatal units across the United Kingdom. J Infect 2023; 87:210-219. [PMID: 37394013 DOI: 10.1016/j.jinf.2023.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 06/13/2023] [Accepted: 06/27/2023] [Indexed: 07/04/2023]
Abstract
OBJECTIVE Increased incidence of neonatal Staphylococcus capitis bacteraemia in summer 2020, London, raised suspicion of widespread multidrug-resistant clone NRCS-A. We set out to investigate the molecular epidemiology of this clone in neonatal units (NNUs) across the UK. METHODS We conducted whole-genome sequencing (WGS) on presumptive S. capitis NRCS-A isolates collected from infants admitted to nationwide NNUs and from environmental sampling in two distinct NNUs in 2021. Previously published S. capitis genomes were added for comparison. Genetic clusters of NRCS-A isolates were defined based on core-genome single-nucleotide polymorphisms. RESULTS We analysed WGS data of 838 S. capitis isolates and identified 750 NRCS-A isolates. We discovered a possible UK-specific NRCS-A lineage consisting of 611 isolates collected between 2005 and 2021. We determined 28 genetic clusters of NRCS-A isolates, which covered all geographical regions in the UK, and isolates of 19 genetic clusters were found in ≥2 regions, suggesting inter-regional spread. Within the NRCS-A clone, strong genetic relatedness was identified between contemporary clinical and incubator-associated fomite isolates and between clinical isolates associated with inter-hospital infant transfer. CONCLUSIONS This WGS-based study confirms the dispersion of S. capitis NRCS-A clone amongst NNUs across the UK and urges research on improving clinical management of neonatal S. capitis infection.
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Affiliation(s)
- Yu Wan
- HCAI, Fungal, AMR, AMU and Sepsis Division, UK Health Security Agency, London, UK; NIHR Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, Department of Infectious Disease, Imperial College London, London, UK.
| | - Mark Ganner
- Reference Services Division, National Infection Service, UK Health Security Agency, London, UK
| | - Zaynab Mumin
- Reference Services Division, National Infection Service, UK Health Security Agency, London, UK
| | - Derren Ready
- UK Health Security Agency, Field Service South West, Bristol, UK; NIHR Health Protection Research Unit in Behavioural Science and Evaluation at University of Bristol, Bristol, UK
| | - Ginny Moore
- Research and Evaluation, UK Health Security Agency, Porton Down, Salisbury, UK
| | - Isabelle Potterill
- Reference Services Division, National Infection Service, UK Health Security Agency, London, UK
| | | | - Elita Jauneikaite
- NIHR Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, Department of Infectious Disease, Imperial College London, London, UK; Department of Infectious Disease Epidemiology, School of Public Health, Imperial College London, London, UK; MRC Centre for Global Infectious Disease Analysis, School of Public Health, Imperial College London, London, UK
| | - Bharat Patel
- Public Health Laboratory London, Science Group, UK Health Security Agency, London, UK
| | - Alessandra Harley
- Reference Services Division, National Infection Service, UK Health Security Agency, London, UK
| | - Maria Getino
- NIHR Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, Department of Infectious Disease, Imperial College London, London, UK
| | - Colin S Brown
- HCAI, Fungal, AMR, AMU and Sepsis Division, UK Health Security Agency, London, UK; NIHR Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, Department of Infectious Disease, Imperial College London, London, UK
| | - Alicia Demirjian
- HCAI, Fungal, AMR, AMU and Sepsis Division, UK Health Security Agency, London, UK; NIHR Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, Department of Infectious Disease, Imperial College London, London, UK; Paediatric Infectious Diseases and Immunology, Evelina London Children's Hospital, London, UK; Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - Bruno Pichon
- HCAI, Fungal, AMR, AMU and Sepsis Division, UK Health Security Agency, London, UK; NIHR Health Protection Research Unit in Healthcare Associated Infections and Antimicrobial Resistance, Department of Infectious Disease, Imperial College London, London, UK
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11
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Decalonne M, Dos Santos S, Gimenes R, Goube F, Abadie G, Aberrane S, Ambrogi V, Baron R, Barthelemy P, Bauvin I, Belmonte O, Benabid E, Ammar RB, Yahia SBH, Berrouane Y, Berthelot P, Beuchee A, Bille E, Bolot P, Bordes-Couecou S, Bouissou A, Bourdon S, Bourgeois-Nicolaos N, Boyer S, Cattoen C, Cattoir V, Chaplain C, Chatelet C, Claudinon A, Chautemps N, Cormier H, Coroller-Bec C, Cotte B, De Chillaz C, Dauwalder O, Davy A, Delorme M, Demasure M, Desfrere L, Drancourt M, Dupin C, Faraut-Derouin V, Florentin A, Forget V, Fortineau N, Foucan T, Frange P, Gambarotto K, Gascoin G, Gibert L, Gilquin J, Glanard A, Grando J, Gravet A, Guinard J, Hery-Arnaud G, Huart C, Idri N, Jellimann JM, Join-Lambert O, Joron S, Jouvencel P, Kempf M, Ketterer-Martinon S, Khecharem M, Klosowski S, Labbe F, Lacazette A, Lapeyre F, Larche J, Larroude P, Le Pourhiennec A, Le Sache N, Ledru S, Lefebvre A, Legeay C, Lemann F, Lesteven C, Levast-Raffin M, Leyssene D, Ligi I, Lozniewski A, Lureau P, Mallaval FO, Malpote E, Marret S, Martres P, Menard G, Menvielle L, Mereghetti L, Merle V, Minery P, Morange V, Mourdie J, Muggeo A, Nakhleh J, Noulard MN, Olive C, Patural H, Penn P, Petitfrere M, Pozetto B, Riviere B, Robine A, Ceschin CR, Ruimy R, Siali A, Soive S, Slimani S, Trentesaux AS, Trivier D, Vandenbussche C, Villeneuve L, Werner E, Le Vu S, Van Der Mee-Marquet N. Staphylococcus capitis isolated from bloodstream infections: a nationwide 3-month survey in 38 neonatal intensive care units. Eur J Clin Microbiol Infect Dis 2020; 39:2185-2194. [PMID: 32519215 PMCID: PMC7561542 DOI: 10.1007/s10096-020-03925-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 05/03/2020] [Indexed: 11/24/2022]
Abstract
To increase the knowledge about S. capitis in the neonatal setting, we conducted a nationwide 3-month survey in 38 neonatal intensive care units (NICUs) covering 56.6% of French NICU beds. We demonstrated 14.2% of S. capitis BSI (S.capBSI) among nosocomial BSIs. S.capBSI incidence rate was 0.59 per 1000 patient-days. A total of 55.0% of the S.capBSIs were late onset catheter-related BSIs. The S. capitis strains infected preterm babies (median gestational age 26 weeks, median birth weight 855 g). They were resistant to methicillin and aminoglycosides and belonged to the NRCS-A clone. Evolution was favorable in all but one case, following vancomycin treatment.
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Affiliation(s)
- Marie Decalonne
- SPIADI, CPIAS CVDL, Hôpital Bretonneau, Centre Hospitalier Universitaire, 37044, Tours, France
| | - Sandra Dos Santos
- Cellule d'Epidémiologie Régionale des Infections Nosocomiales, CPIAS CVDL, Service de Bactériologie-Virologie-Hygiène, Hôpital Trousseau, CHRU, 37044, Tours, France
| | - Rémi Gimenes
- SPIADI, CPIAS CVDL, Hôpital Bretonneau, Centre Hospitalier Universitaire, 37044, Tours, France
| | - Florent Goube
- SPIADI, CPIAS CVDL, Hôpital Bretonneau, Centre Hospitalier Universitaire, 37044, Tours, France
| | - Géraldine Abadie
- Service de réanimation néonatale, Centre Hospitalier Universitaire Félix Guyon, 97400, Saint Denis de la Réunion, France
| | - Saïd Aberrane
- Laboratoire de Microbiologie, Centre Hospitalier Inter-Communal, 94010, Créteil, France
| | - Vanina Ambrogi
- Équipe opérationnelle d'hygiène, Centre Hospitalier Universitaire, 31059, Toulouse, France
| | - Raoul Baron
- Équipe opérationnelle d'hygiène, Centre Hospitalier Universitaire, 29609, Brest, France
| | - Patrick Barthelemy
- Équipe opérationnelle d'hygiène, Hôpital de la Conception, APHM, 13005, Marseille, France
| | - Isabelle Bauvin
- Service de réanimation néonatale, Centre Hospitalier, 64000, Pau, France
| | - Olivier Belmonte
- Laboratoire de Microbiologie, Centre Hospitalier Universitaire Félix Guyon, 97400, Saint Denis de la Réunion, France
| | - Emilie Benabid
- Équipe opérationnelle d'hygiène, Centre Hospitalier, 95300, Pontoise, France
| | - Rafik Ben Ammar
- Service de réanimation néonatale, Centre Hospitalier Universitaire Antoine-Béclère, APHP, 92140, Clamart, France
| | | | - Yasmina Berrouane
- Équipe opérationnelle d'hygiène, Centre Hospitalier Universitaire, 06200, Nice, France
| | - Philippe Berthelot
- Équipe opérationnelle d'hygiène, Centre Hospitalier Universitaire, 42055, Saint Etienne, France
| | - Alain Beuchee
- Service de réanimation néonatale, Centre Hospitalier Universitaire, 35000, Rennes, France
| | - Emmanuelle Bille
- Laboratoire de Microbiologie clinique, Hôpital universitaire Necker-Enfants malades, APHP, 75015, Paris, France
| | - Pascal Bolot
- Service de réanimation néonatale, Centre Hospitalier Delafontaine, 93205, Saint Denis, France
| | | | - Antoine Bouissou
- Service de réanimation néonatale, Centre Hospitalier Universitaire, 37044, Tours, France
| | - Sandra Bourdon
- Équipe opérationnelle d'hygiène, Centre Hospitalier du Havre, 76290, Montivilliers, France
| | - Nadège Bourgeois-Nicolaos
- Laboratoire de Microbiologie, Centre Hospitalier Universitaire Antoine-Béclère, APHP, 92140, Clamart, France
| | - Sophie Boyer
- Laboratoire de Microbiologie, Centre Hospitalier Universitaire Charles Nicolle, 76000, Rouen, France
| | - Christian Cattoen
- Laboratoire de Microbiologie, Centre Hospitalier, 59300, Valenciennes, France
| | - Vincent Cattoir
- Laboratoire de Microbiologie, Centre Hospitalier Universitaire, 35000, Rennes, France
| | - Chantal Chaplain
- Laboratoire de Microbiologie, Centre Hospitalier Delafontaine, 93205, Saint Denis, France
| | - Céline Chatelet
- Équipe opérationnelle d'hygiène, Centre Hospitalier, 62300, Lens, France
| | - Aurore Claudinon
- Laboratoire de Microbiologie, Centre Hospitalier, 95107, Argenteuil, France
| | - Nathalie Chautemps
- Service de réanimation néonatale, Centre Hospitalier Métropole Savoie-Site de Chambéry, 73 011, Chambéry, France
| | - Hélène Cormier
- UPLIN, Centre Hospitalier Universitaire, 49933, Angers, France
| | | | | | - Carole De Chillaz
- Service de Néonatalogie et Réanimation néonatale, Hôpital universitaire Necker-Enfants malades, APHP, 75015, Paris, France
| | - Olivier Dauwalder
- Laboratoire de Microbiologie, Hôpitaux Civils de Lyon, 69677, Bron, France
| | - Aude Davy
- Équipe opérationnelle d'hygiène, Centre Hospitalier, 22000, Saint Brieuc, France
| | - Martine Delorme
- Équipe opérationnelle d'hygiène, Centre Hospitalier, 79021, Niort, France
| | - Maryvonne Demasure
- Équipe opérationnelle d'hygiène, Centre Hospitalier Régional, 45100, Orléans, France
| | - Luc Desfrere
- Service de réanimation néonatale, Centre Hospitalier Universitaire, Hôpital Louis-Mourier, APHP, 92700, Colombes, France
| | - Michel Drancourt
- Laboratoire de Microbiologie, Hôpital de la Conception, APHM, 13005, Marseille, France
| | - Clarisse Dupin
- Laboratoire de Microbiologie, Centre Hospitalier, 22000, Saint Brieuc, France
| | - Véronique Faraut-Derouin
- Équipe opérationnelle d'hygiène, Centre Hospitalier Universitaire Antoine-Béclère, APHP, 92140, Clamart, France
| | - Arnaud Florentin
- Service d'hygiène et d'analyses environnementales (SHAE), Hôpitaux de Brabois, 54035, Nancy, France
| | - Virginie Forget
- Équipe opérationnelle d'hygiène, Centre Hospitalier Métropole Savoie-Site de Chambéry, 73 011, Chambéry, France
| | - Nicolas Fortineau
- Équipe opérationnelle d'hygiène, Centre Hospitalier Universitaire, Kremlin Bicêtre, APHP, 94275, Le Kremlin Bicêtre, France
| | - Tania Foucan
- Équipe opérationnelle d'hygiène, Centre Hospitalier Universitaire, 97159, Pointe-à-Pitre, France
| | - Pierre Frange
- Laboratoire de Microbiologie clinique, Hôpital universitaire Necker-Enfants malades, APHP, 75015, Paris, France.,Équipe opérationnelle d'hygiène, Hôpital universitaire Necker-Enfants malades, APHP, 75015, Paris, France
| | - Karine Gambarotto
- Équipe opérationnelle d'hygiène, Centre Hospitalier Universitaire Félix Guyon, 97400, Saint Denis de la Réunion, France
| | - Géraldine Gascoin
- Service de réanimation néonatale, Centre Hospitalier Universitaire, 49933, Angers, France
| | - Laure Gibert
- Équipe opérationnelle d'hygiène, Centre Hospitalier du Havre, 76290, Montivilliers, France
| | - Jacques Gilquin
- Équipe opérationnelle d'hygiène, Centre Hospitalier, 81100, Castres, France
| | - Audrey Glanard
- Équipe opérationnelle d'hygiène, Centre Hospitalier Delafontaine, 93205, Saint Denis, France
| | - Jacqueline Grando
- Équipe opérationnelle d'hygiène, Hôpitaux Civils de Lyon, 69677, Bron, France
| | - Alain Gravet
- Laboratoire de Microbiologie, Centre Hospitalier, 68100, Mulhouse, France
| | - Jérôme Guinard
- Laboratoire de Microbiologie, Centre Hospitalier Régional, 45100, Orléans, France
| | - Geneviève Hery-Arnaud
- Laboratoire de Microbiologie, Centre Hospitalier Universitaire, 29609, Brest, France
| | - Claire Huart
- Équipe opérationnelle d'hygiène, Centre Hospitalier, 59300, Valenciennes, France
| | - Nadia Idri
- Équipe opérationnelle d'hygiène, Hôpital Louis-Mourier, APHP, 92700, Colombes, France.,Laboratoire de Microbiologie, Hôpital Louis-Mourier, APHP, 92700, Colombes, France
| | - Jean-Marc Jellimann
- Service de réanimation néonatale, Centre Hospitalier Universitaire, Hôpitaux de Brabois, 54035, Nancy, France
| | - Olivier Join-Lambert
- Laboratoire de Microbiologie, Centre Hospitalier Universitaire, 14000, Caen, France
| | - Sylvie Joron
- Service d'hygiène, Centre Hospitalier, 62100, Calais, France
| | - Philippe Jouvencel
- Service de réanimation néonatale, Centre Hospitalier, 64100, Bayonne, France
| | - Marie Kempf
- Laboratoire de Bactériologie-Hygiène Institut de Biologie en Santé, CRCINA Inserm U1232, Université d'Angers, Centre Hospitalier Universitaire, 49933, Angers, France
| | - Sophie Ketterer-Martinon
- Service de réanimation néonatale et réanimation pédiatrique, Centre Hospitalier Universitaire de Martinique, 97261, Fort de France, France
| | - Mouna Khecharem
- Laboratoire de Bactériologie-Hygiène, Centre Hospitalier Universitaire, Kremlin Bicêtre, APHP, 94275, Le Kremlin Bicêtre, France
| | - Serge Klosowski
- Service de réanimation néonatale, Centre Hospitalier, 62300, Lens, France
| | - Franck Labbe
- Laboratoire de Microbiologie, Centre Hospitalier du Havre, 76290, Montivilliers, France
| | - Adeline Lacazette
- Service de réanimation néonatale, Centre Hospitalier Universitaire, 97159, Pointe-à-Pitre, France
| | - Fabrice Lapeyre
- Service de réanimation néonatale, Centre Hospitalier, 59300, Valenciennes, France
| | | | - Peggy Larroude
- Équipe opérationnelle d'hygiène, Centre Hospitalier, 64000, Pau, France
| | | | - Nolwenn Le Sache
- Service de réanimation néonatale, Centre Hospitalier Universitaire, Kremlin Bicêtre, APHP, 94275, Le Kremlin Bicêtre, France
| | - Sylvie Ledru
- Laboratoire de Microbiologie, Centre Hospitalier, 62300, Lens, France
| | - Annick Lefebvre
- Équipe opérationnelle d'hygiène, Université de Reims Champagne-Ardenne, 51100, Reims, France
| | - Clément Legeay
- UPLIN, Centre Hospitalier Universitaire, 49933, Angers, France
| | - Florence Lemann
- Équipe opérationnelle d'hygiène, Centre Hospitalier, 95107, Argenteuil, France
| | - Claire Lesteven
- Équipe opérationnelle d'hygiène, Centre Hospitalier Universitaire, 14000, Caen, France
| | - Marion Levast-Raffin
- Laboratoire de Biologie Médicale, Centre Hospitalier Métropole Savoie-Site de Chambéry, 73 011, Chambéry, France
| | - David Leyssene
- Laboratoire de Microbiologie, Centre Hospitalier, 64100, Bayonne, France
| | - Isabelle Ligi
- Service de réanimation néonatale, Centre Hospitalier Universitaire, Hôpital de la Conception, APHM, 13005, Marseille, France
| | - Alain Lozniewski
- Laboratoire de Microbiologie, Hôpitaux de Brabois, 54035, Nancy, France
| | - Pierre Lureau
- Laboratoire de Microbiologie, Centre Hospitalier, 79021, Niort, France
| | - Franck-Olivier Mallaval
- Équipe opérationnelle d'hygiène, Centre Hospitalier Métropole Savoie-Site de Chambéry, 73 011, Chambéry, France
| | - Edith Malpote
- Laboratoire de Microbiologie, Centre Hospitalier Universitaire, 97159, Pointe-à-Pitre, France
| | - Stéphane Marret
- Service de réanimation néonatale, Centre Hospitalier Universitaire Charles Nicolle, 76000, Rouen, France
| | - Pascale Martres
- Laboratoire de Microbiologie, Centre Hospitalier, 95300, Pontoise, France
| | - Guillaume Menard
- Équipe opérationnelle d'hygiène, Centre Hospitalier Universitaire, 35000, Rennes, France
| | - Laura Menvielle
- Service de réanimation néonatale et réanimation pédiatrique, Centre Hospitalier Universitaire, Hôpital Robert Debré, Inserm UMR-S 1250 P3Cell, Université de Reims Champagne-Ardenne, 51100, Reims, France
| | - Laurent Mereghetti
- Laboratoire de Microbiologie, Centre Hospitalier Universitaire, 37044, Tours, France
| | - Véronique Merle
- Équipe opérationnelle d'hygiène, Centre Hospitalier Universitaire Charles Nicolle, 76000, Rouen, France
| | - Pascale Minery
- Équipe opérationnelle d'hygiène, Centre Hospitalier, 68100, Mulhouse, France
| | - Virginie Morange
- Équipe opérationnelle d'hygiène, Centre Hospitalier Universitaire, 37044, Tours, France
| | - Julien Mourdie
- Service de réanimation néonatale, Centre Hospitalier du Havre, 76290, Montivilliers, France
| | - Anaelle Muggeo
- Laboratoire de Bactériologie, Université de Reims Champagne-Ardenne, 51100, Reims, France
| | - Jean Nakhleh
- Service de réanimation néonatale, Centre Hospitalier, 68100, Mulhouse, France
| | | | - Claude Olive
- Laboratoire de Microbiologie, Centre Hospitalier Universitaire de Martinique, 97261, Fort de France, France
| | - Hugues Patural
- Service de réanimation néonatale, Centre Hospitalier Universitaire, 42055, Saint Etienne, France
| | - Pascale Penn
- Laboratoire de Microbiologie, Centre Hospitalier, 72000, Le Mans, France
| | | | - Bruno Pozetto
- Laboratoire de Microbiologie, Centre Hospitalier Universitaire, 42055, Saint Etienne, France
| | - Brigitte Riviere
- Laboratoire de Microbiologie, Centre Hospitalier, 81100, Castres, France
| | - Audrey Robine
- Service de réanimation néonatale, Centre Hospitalier, 72000, Le Mans, France
| | | | - Raymond Ruimy
- Laboratoire de Microbiologie, Centre Hospitalier Universitaire, 06200, Nice, France
| | - Amine Siali
- Équipe opérationnelle d'hygiène, Centre Hospitalier Inter-Communal, 94010, Créteil, France
| | - Stéphanie Soive
- Service de réanimation néonatale, Centre Hospitalier, 22000, Saint Brieuc, France
| | - Souad Slimani
- Équipe opérationnelle d'hygiène, Centre Hospitalier Universitaire de Martinique, 97261, Fort de France, France
| | | | - Dominique Trivier
- Équipe opérationnelle d'hygiène, Centre Hospitalier, 62300, Lens, France
| | | | | | - Evelyne Werner
- Service de réanimation néonatale, Centre Hospitalier Régional, 45100, Orléans, France
| | - Stéphane Le Vu
- Agence Santé Publique France, 94415, Saint Maurice, France
| | - Nathalie Van Der Mee-Marquet
- SPIADI, CPIAS CVDL, Hôpital Bretonneau, Centre Hospitalier Universitaire, 37044, Tours, France. .,Cellule d'Epidémiologie Régionale des Infections Nosocomiales, CPIAS CVDL, Service de Bactériologie-Virologie-Hygiène, Hôpital Trousseau, CHRU, 37044, Tours, France.
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12
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Qu Y, Li Y, Cameron DR, Easton CD, Zhu X, Zhu M, Salwiczek M, Muir BW, Thissen H, Daley A, Forsythe JS, Peleg AY, Lithgow T. Hyperosmotic Infusion and Oxidized Surfaces Are Essential for Biofilm Formation of Staphylococcus capitis From the Neonatal Intensive Care Unit. Front Microbiol 2020; 11:920. [PMID: 32477314 PMCID: PMC7237634 DOI: 10.3389/fmicb.2020.00920] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Accepted: 04/17/2020] [Indexed: 11/20/2022] Open
Abstract
Staphylococcus capitis is an opportunistic pathogen often implicated in bloodstream infections in the neonatal intensive care unit (NICU). This is assisted by its ability to form biofilms on indwelling central venous catheters (CVC), which are highly resistant to antibiotics and the immune system. We sought to understand the fundamentals of biofilm formation by S. capitis in the NICU, using seventeen clinical isolates including the endemic NRCS-A clone and assessing nine commercial and two modified polystyrene surfaces. S. capitis clinical isolates from the NICU initiated biofilm formation only in response to hyperosmotic conditions, followed by a developmental progression driven by icaADBC expression to establish mature biofilms, with polysaccharide being their major extracellular polymer substance (EPS) matrix component. Physicochemical features of the biomaterial surface, and in particular the level of the element oxygen present on the surface, significantly influenced biofilm development of S. capitis. A lack of highly oxidized carbon species on the surface prevented the immobilization of S. capitis EPS and the formation of mature biofilms. This information provides guidance in regard to the preparation of hyperosmolar total parenteral nutrition and the engineering of CVC surfaces that can minimize the risk of catheter-related bloodstream infections caused by S. capitis in the NICU.
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Affiliation(s)
- Yue Qu
- The Neonatal Intensive Care Unit, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Infection and Immunity Theme, Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia.,Department of Infectious Diseases, The Alfred Hospital and Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Yali Li
- The Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, VIC, Australia.,Department of Materials Science and Engineering, Monash Institute of Medical Engineering, Monash University, Clayton, VIC, Australia
| | - David R Cameron
- Infection and Immunity Theme, Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
| | - Christopher D Easton
- The Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, VIC, Australia
| | - Xuebo Zhu
- The Neonatal Intensive Care Unit, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Minli Zhu
- The Neonatal Intensive Care Unit, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Mario Salwiczek
- Infection and Immunity Theme, Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia.,The Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, VIC, Australia
| | - Benjamin W Muir
- The Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, VIC, Australia
| | - Helmut Thissen
- The Commonwealth Scientific and Industrial Research Organisation (CSIRO) Manufacturing, Clayton, VIC, Australia
| | - Andrew Daley
- Department of Microbiology, The Royal Children's Hospital, Parkville, VIC, Australia.,Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia
| | - John S Forsythe
- Department of Materials Science and Engineering, Monash Institute of Medical Engineering, Monash University, Clayton, VIC, Australia
| | - Anton Y Peleg
- Infection and Immunity Theme, Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia.,Department of Infectious Diseases, The Alfred Hospital and Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Trevor Lithgow
- Infection and Immunity Theme, Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia
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