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Shimada T, Ishikawa K, Kawai F, Mori N. Corynebacterium bacteremia in patients with hematologic disorders: a case series and systematic literature review. Leuk Lymphoma 2024; 65:997-1002. [PMID: 38498769 DOI: 10.1080/10428194.2024.2331086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 03/11/2024] [Indexed: 03/20/2024]
Abstract
Corynebacterium is generally considered a contaminant in clinical practice. However, it may cause bacteremia in patients with hematologic disorders, and factors that contribute to its mortality are unclear. A case series and systematic literature review identified 96 cases of Corynebacterium bacteremia inhematologic disorderpatients. The median age was 50.5 years (range: 2-93 years), with 79 (82%) patients 18 years or older, and 64 (67%) patients male. Most cases involved hematologic malignancies, and neutropenia was observed in approximately 75% cases. The most common sites of infection/symptoms were skin and soft tissue, respiratory, and catheter-related bloodstream infection. The infection-related mortality was 23%, and univariate analysis showed that age, respiratory infection/symptoms, and source control were significantly associated with infection-related mortality. Multivariate analysis indicates that infection-related mortality was significantly reduced by source control (OR: 0.24, 95% CI: 0.06-0.97, p = 0.046). Therefore, when Corynebacterium infections are suspected, early source control should be considered.
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Affiliation(s)
- Tomohito Shimada
- Department of Infectious Diseases, St. Luke's International Hospital, Tokyo, Japan
| | - Kazuhiro Ishikawa
- Department of Infectious Diseases, St. Luke's International Hospital, Tokyo, Japan
| | - Fujimi Kawai
- Library, Department of Academic Resources, St. Luke's International University, Tokyo, Japan
| | - Nobuyoshi Mori
- Department of Infectious Diseases, St. Luke's International Hospital, Tokyo, Japan
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Lavollay M, Buon C, Le Moigne V, Compain F, Guyonvarch A, Fonvielle M. Exploration of the role of the penicillin binding protein 2c (Pbp2c) in inducible β-lactam resistance in Corynebacteriaceae. Front Microbiol 2024; 15:1327723. [PMID: 38784795 PMCID: PMC11111852 DOI: 10.3389/fmicb.2024.1327723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 04/23/2024] [Indexed: 05/25/2024] Open
Abstract
Six genes encoding putative high molecular weight penicillin-binding proteins (Pbp) are present in the genome of the β-lactam-resistant strain Corynebacterium jeikeium K411. In this study, we show that pbp2c, one of these six genes, is present in resistant strains of Corynebacteriaceae but absent from sensitive strains. The molecular study of the pbp2c locus from C. jeikeium and its heterologous expression in Corynebacterium glutamicum allowed us to show that Pbp2c confers high levels of β-lactam resistance to the host and is under the control of a β-lactam-induced regulatory system encoded by two adjacent genes, jk0410 and jk0411. The detection of this inducible resistance may require up to 48 h of incubation, particularly in Corynebacterium amycolatum. Finally, the Pbp2c-expressing strains studied were resistant to all the β-lactam antibiotics tested, including carbapenems, ceftaroline, and ceftobiprole.
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Affiliation(s)
- Marie Lavollay
- INSERM, Université Paris Cité, Sorbonne Université, Centre de Recherche des Cordeliers, Paris, France
- Service de Microbiologie, Hôpital Européen Georges Pompidou, AP-HP Centre, Université Paris Cité, Paris, France
- Institut Mutualiste Montsouris (IMM), Service de Microbiology, Paris, France
| | - Céline Buon
- INSERM, Université Paris Cité, Sorbonne Université, Centre de Recherche des Cordeliers, Paris, France
| | - Vincent Le Moigne
- Université Paris-Saclay, UVSQ, Inserm, Infection et Inflammation, Montigny-le-Bretonneux, France
| | - Fabrice Compain
- Institut Mutualiste Montsouris (IMM), Service de Microbiology, Paris, France
| | - Armel Guyonvarch
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Matthieu Fonvielle
- Institute for Integrative Biology of the Cell (I2BC), CEA, CNRS, Université Paris-Saclay, Gif-sur-Yvette, France
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Giffen SR, Alby K. The Brief Case: A case of bloodstream infection with Corynebacterium kroppenstedtii in an infant. J Clin Microbiol 2024; 62:e0082023. [PMID: 38477566 PMCID: PMC10935653 DOI: 10.1128/jcm.00820-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024] Open
Affiliation(s)
- Samantha R. Giffen
- University of North Carolina Health Care, Clinical Microbiology Laboratory, Chapel Hill, North Carolina, USA
| | - Kevin Alby
- University of North Carolina Health Care, Clinical Microbiology Laboratory, Chapel Hill, North Carolina, USA
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Conquet G, Martel N, Bonzon L. Disseminated invasive Corynebacterium simulans infection complicated by high-level daptomycin resistance acquisition under treatment: a case report. J Antimicrob Chemother 2024; 79:687-689. [PMID: 38198578 DOI: 10.1093/jac/dkad409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2024] Open
Affiliation(s)
- Guilhem Conquet
- Laboratoire de Bactériologie, CHU Montpellier, Hôpital Arnaud de Villeneuve, Univ Montpellier, 371 avenue du Doyen Gaston Giraud, Montpellier, France
| | - Nicolas Martel
- Laboratoire de Bactériologie, CHU Montpellier, Hôpital Arnaud de Villeneuve, Univ Montpellier, 371 avenue du Doyen Gaston Giraud, Montpellier, France
| | - Lucas Bonzon
- Laboratoire de Bactériologie, CHU Montpellier, Hôpital Arnaud de Villeneuve, Univ Montpellier, 371 avenue du Doyen Gaston Giraud, Montpellier, France
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Wu Z, Zeng S, Wang X, Liu H, Sun H, Zhou X, Yang Q. Patterns of Circulating Microbiota during the Acute Phase Following ST-Segment Elevation Myocardial Infarction Predict Long-Term Cardiovascular Events. Int Heart J 2023; 64:551-561. [PMID: 37460320 DOI: 10.1536/ihj.22-672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
Limited information exists regarding whether circulating microbiota could predict long-term clinical outcomes following ST-segment elevation myocardial infarction (STEMI). A total of 244 consecutive patients with STEMI were followed for 2.8 years, and 64 first major adverse cardiovascular events (MACEs) were recorded. Both microbiota abundance [Corynebacterium tuberculostearicum (HR, 1.28; 95% CI, 1.03-1.58) and Staphylococcus aureus (S. aureus) (HR, 1.16; 95% CI, 1.02-1.33) ] and microbiota clusters (Cluster 2 versus Cluster 1: HR, 1.84; 95% CI, 1.04-3.27) could independently predict MACE. Furthermore, a model based on established independent predictors alone was significantly improved by the addition of different microbiota patterns. In addition, CD14++CD16+ monocytes (Mon2) had a significant mediation effect on the microbiota patterns → MACE association. The present study demonstrated that the abundance and clusters of circulating microbiota are associated with future adverse cardiovascular events independent of traditional risk factors, which were partially mediated by an increase in Mon2.
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Affiliation(s)
- Zhaogui Wu
- Department of Cardiology, Tianjin Medical University General Hospital
| | - Shan Zeng
- Tianjin Key Laboratory of Cardiovascular Remodeling and Target Organ Injury, Heart Center, Pingjin Hospital
| | - Xuezhu Wang
- Department of Cardiology, Tianjin Medical University General Hospital
| | - Hangkuan Liu
- Department of Cardiology, Tianjin Medical University General Hospital
| | - Haonan Sun
- Department of Cardiology, Tianjin Medical University General Hospital
| | - Xin Zhou
- Department of Cardiology, Tianjin Medical University General Hospital
| | - Qing Yang
- Department of Cardiology, Tianjin Medical University General Hospital
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Jesus HNR, Ramos JN, Rocha DJPG, Alves DA, Silva CS, Cruz JVO, Vieira VV, Souza C, Santos LS, Navas J, Ramos RTJ, Azevedo V, Aguiar ERGR, Mattos-Guaraldi AL, Pacheco LGC. The pan-genome of the emerging multidrug-resistant pathogen Corynebacterium striatum. Funct Integr Genomics 2022; 23:5. [PMID: 36534203 DOI: 10.1007/s10142-022-00932-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 10/06/2022] [Accepted: 11/24/2022] [Indexed: 12/23/2022]
Abstract
Corynebacterium striatum, a common constituent of the human skin microbiome, is now considered an emerging multidrug-resistant pathogen of immunocompromised and chronically ill patients. However, little is known about the molecular mechanisms in the transition from colonization to the multidrug-resistant (MDR) invasive phenotype in clinical isolates. This study performed a comprehensive pan-genomic analysis of C. striatum, including isolates from "normal skin microbiome" and from MDR infections, to gain insights into genetic factors contributing to pathogenicity and multidrug resistance in this species. For this, three novel genome sequences were obtained from clinical isolates of C. striatum of patients from Brazil, and other 24 complete or draft C. striatum genomes were retrieved from GenBank, including the ATCC6940 isolate from the Human Microbiome Project. Analysis of C. striatum strains demonstrated the presence of an open pan-genome (α = 0.852803) containing 3816 gene families, including 15 antimicrobial resistance (AMR) genes and 32 putative virulence factors. The core and accessory genomes included 1297 and 1307 genes, respectively. The identified AMR genes are primarily associated with resistance to aminoglycosides and tetracyclines. Of these, 66.6% are present in genomic islands, and four AMR genes, including aac(6')-ib7, are located in a class 1-integron. In conclusion, our data indicated that C. striatum possesses genomic characteristics favorable to the invasive phenotype, with high genomic plasticity, a robust genetic arsenal for iron acquisition, and important virulence determinants and AMR genes present in mobile genetic elements.
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Affiliation(s)
- Hendor N R Jesus
- Multicenter Post-Graduate Program in Biochemistry and Molecular Biology (PMBqBM), Institute of Health Sciences, Federal University of Bahia, Salvador, BA, Brazil
| | - Juliana N Ramos
- Laboratory of Diphtheria and Corinebacteria of Clinical Relevance, School of Medical Sciences, Rio de Janeiro State University - LDCIC/FCM/UERJ, Rio de Janeiro, RJ, Brazil
| | - Danilo J P G Rocha
- Institute of Health Sciences, Federal University of Bahia, Salvador, BA, Brazil
| | - Daniele A Alves
- Institute of Health Sciences, Federal University of Bahia, Salvador, BA, Brazil.,Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Carolina S Silva
- Institute of Health Sciences, Federal University of Bahia, Salvador, BA, Brazil
| | - João V O Cruz
- Institute of Health Sciences, Federal University of Bahia, Salvador, BA, Brazil
| | - Verônica V Vieira
- Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Laboratório Interdisciplinar de Pesquisas Médicas, Rio de Janeiro, RJ, Brazil
| | - Cassius Souza
- Laboratory of Diphtheria and Corinebacteria of Clinical Relevance, School of Medical Sciences, Rio de Janeiro State University - LDCIC/FCM/UERJ, Rio de Janeiro, RJ, Brazil
| | - Louisy S Santos
- Laboratory of Diphtheria and Corinebacteria of Clinical Relevance, School of Medical Sciences, Rio de Janeiro State University - LDCIC/FCM/UERJ, Rio de Janeiro, RJ, Brazil
| | - Jesus Navas
- Cantabria University, Instituto de Investigación Valdecilla (IDIVAL), Santander, Spain
| | - Rommel T J Ramos
- Institute of Biological Sciences, Federal University of Para, Belem, PA, Brazil.,Biological Engineering Laboratory, Science and Technology Park Guama, Belem, PA, Brazil
| | - Vasco Azevedo
- Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Eric R G R Aguiar
- Department of Biological Sciences, State University of Santa Cruz, Ilhéus, BA, Brazil
| | - Ana L Mattos-Guaraldi
- Laboratory of Diphtheria and Corinebacteria of Clinical Relevance, School of Medical Sciences, Rio de Janeiro State University - LDCIC/FCM/UERJ, Rio de Janeiro, RJ, Brazil
| | - Luis G C Pacheco
- Multicenter Post-Graduate Program in Biochemistry and Molecular Biology (PMBqBM), Institute of Health Sciences, Federal University of Bahia, Salvador, BA, Brazil. .,Institute of Health Sciences, Federal University of Bahia, Salvador, BA, Brazil.
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Marino A, Campanella E, Stracquadanio S, Ceccarelli M, Zagami A, Nunnari G, Cacopardo B. Corynebacterium striatum Bacteremia during SARS-CoV2 Infection: Case Report, Literature Review, and Clinical Considerations. Infect Dis Rep 2022; 14:383-390. [PMID: 35645221 PMCID: PMC9149851 DOI: 10.3390/idr14030042] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 02/01/2023] Open
Abstract
Bacterial infections, especially those in hospital settings, represent a major complication of COVID-19 patients, complicating management and worsening clinical outcomes. Corynebacterium striatum is a non-diphtheric actinobacterium that has been reported as being the causative agent of several different infections, affecting both immunocompetent and immunocompromised patients. Recently, C. striatum has been recognized as a nosocomial pathogen that is responsible for severe infection in critical patients, as well as in fragile and immunocompromised subjects. C. striatum has been described as the etiological agent of bacteremia, central line infections, and endocarditis. We report a case of a 91-year-old woman who was hospitalized due to SARS-CoV-2 infection, who developed C. striatum bacteremia and died despite antimicrobial therapy and clinical efforts. Furthermore, we discuss C. striatum diagnosis and treatment based on evidence from the scientific literature.
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Affiliation(s)
- Andrea Marino
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy;
- Department of Clinical and Experimental Medicine, Unit of Infectious Diseases, ARNAS Garibaldi Hospital, University of Catania, 95122 Catani, Italy; (M.C.); (A.Z.); (B.C.)
| | - Edoardo Campanella
- Department of Clinical and Experimental Medicine, Unit of Infectious Diseases, University of Messina, 98124 Messina, Italy; (E.C.); (G.N.)
| | - Stefano Stracquadanio
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy;
| | - Manuela Ceccarelli
- Department of Clinical and Experimental Medicine, Unit of Infectious Diseases, ARNAS Garibaldi Hospital, University of Catania, 95122 Catani, Italy; (M.C.); (A.Z.); (B.C.)
| | - Aldo Zagami
- Department of Clinical and Experimental Medicine, Unit of Infectious Diseases, ARNAS Garibaldi Hospital, University of Catania, 95122 Catani, Italy; (M.C.); (A.Z.); (B.C.)
| | - Giuseppe Nunnari
- Department of Clinical and Experimental Medicine, Unit of Infectious Diseases, University of Messina, 98124 Messina, Italy; (E.C.); (G.N.)
| | - Bruno Cacopardo
- Department of Clinical and Experimental Medicine, Unit of Infectious Diseases, ARNAS Garibaldi Hospital, University of Catania, 95122 Catani, Italy; (M.C.); (A.Z.); (B.C.)
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Tabaja H, Tai DBG, Beam E, Abdel MP, Tande AJ. Clinical Profile of Monomicrobial Corynebacterium Hip and Knee Periprosthetic Joint Infections. Open Forum Infect Dis 2022; 9:ofac193. [PMID: 35873283 PMCID: PMC9297158 DOI: 10.1093/ofid/ofac193] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/11/2022] [Indexed: 11/14/2022] Open
Abstract
Background Corynebacterium periprosthetic joint infection (PJI) is a poorly described infectious syndrome. Prior studies included cases of polymicrobial infections. This series describes the clinical characteristics, management, and outcomes of monomicrobial Corynebacterium PJI. Methods We queried the Mayo Clinic Total Joint Registry for cases of monomicrobial Corynebacterium knee and hip PJI in adults (age ≥18 years) between 2010 and 2019. Results A total of 20 (1%) out of 2067 PJI cases met our inclusion criteria. Most were males (55%), and the median age was 64 years. Seventy percent had chronic symptoms (>4 weeks). PJI was delayed to late (>3 months postimplantation) in 90%. Three species were identified: C. striatum (70%), C. jeikeium (20%), and C. amycolatum (10%). All tested isolates were susceptible to vancomycin (100%) and linezolid (100%), and most had a minimum inhibitory concentration ≤0.06 mcg/mL to daptomycin (75%). Other agents were less reliable, with high resistance to oral agents commonly used for suppression. Nineteen patients were treated: 37% debridement and implant retention (DAIR), 47% 2-stage exchange, and 16% resection without reimplantation. Of these, failure occurred in 29%, 11%, and 0%, respectively. Conclusions Corynebacterium PJIs pose a therapeutic challenge due to limited antimicrobial armamentarium and undefined optimal surgical intervention. Vancomycin and linezolid remain the most reliable agents for treatment. DAIR may be attempted for acute PJI, but verification of durable chronic suppression options will be critical for this approach.
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Affiliation(s)
- Hussam Tabaja
- Division of Public Health, Infectious Diseases and Occupational Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Don Bambino Geno Tai
- Division of Public Health, Infectious Diseases and Occupational Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Elena Beam
- Division of Public Health, Infectious Diseases and Occupational Medicine, Department of Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Matthew P Abdel
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Aaron J Tande
- Correspondence: Aaron J. Tande, MD, Division of Public Health, Infectious Diseases and Occupational Medicine, Mayo Clinic, 200 First St. SW, Rochester, MN 55905 ()
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Leyton B, Ramos JN, Baio PVP, Veras JFC, Souza C, Burkovski A, Mattos-Guaraldi AL, Vieira VV, Abanto Marin M. Treat Me Well or Will Resist: Uptake of Mobile Genetic Elements Determine the Resistome of Corynebacterium striatum. Int J Mol Sci 2021; 22:7499. [PMID: 34299116 PMCID: PMC8304765 DOI: 10.3390/ijms22147499] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 06/14/2021] [Accepted: 06/15/2021] [Indexed: 12/16/2022] Open
Abstract
Corynebacterium striatum, a bacterium that is part of the normal skin microbiota, is also an opportunistic pathogen. In recent years, reports of infections and in-hospital and nosocomial outbreaks caused by antimicrobial multidrug-resistant C. striatum strains have been increasing worldwide. However, there are no studies about the genomic determinants related to antimicrobial resistance in C. striatum. This review updates global information related to antimicrobial resistance found in C. striatum and highlights the essential genomic aspects in its persistence and dissemination. The resistome of C. striatum comprises chromosomal and acquired elements. Resistance to fluoroquinolones and daptomycin are due to mutations in chromosomal genes. Conversely, resistance to macrolides, tetracyclines, phenicols, beta-lactams, and aminoglycosides are associated with mobile genomic elements such as plasmids and transposons. The presence and diversity of insertion sequences suggest an essential role in the expression of antimicrobial resistance genes (ARGs) in genomic rearrangements and their potential to transfer these elements to other pathogens. The present study underlines that the resistome of C. striatum is dynamic; it is in evident expansion and could be acting as a reservoir for ARGs.
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Affiliation(s)
- Benjamin Leyton
- Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco 4811230, Chile;
- Carrera de Bioquímica, Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Temuco 4811230, Chile
| | - Juliana Nunes Ramos
- Laboratório Interdisciplinar de Pesquisas Médicas, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz—Fiocruz, Rio de Janeiro 21040-361, Brazil; (J.N.R.); (P.V.P.B.); (J.F.C.V.); (V.V.V.)
- Laboratory of Diphtheria and Corynebacteria of Clinical Relevance, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro—LDCIC/FCM/UERJ, Rio de Janeiro 20550-170, Brazil; (C.S.); (A.L.M.-G.)
| | - Paulo Victor Pereira Baio
- Laboratório Interdisciplinar de Pesquisas Médicas, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz—Fiocruz, Rio de Janeiro 21040-361, Brazil; (J.N.R.); (P.V.P.B.); (J.F.C.V.); (V.V.V.)
| | - João Flávio Carneiro Veras
- Laboratório Interdisciplinar de Pesquisas Médicas, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz—Fiocruz, Rio de Janeiro 21040-361, Brazil; (J.N.R.); (P.V.P.B.); (J.F.C.V.); (V.V.V.)
| | - Cassius Souza
- Laboratory of Diphtheria and Corynebacteria of Clinical Relevance, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro—LDCIC/FCM/UERJ, Rio de Janeiro 20550-170, Brazil; (C.S.); (A.L.M.-G.)
| | - Andreas Burkovski
- Department of Biology, Professur für Mikrobiologie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Staudtstrasse 5, 91058 Erlangen, Germany;
| | - Ana Luíza Mattos-Guaraldi
- Laboratory of Diphtheria and Corynebacteria of Clinical Relevance, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro—LDCIC/FCM/UERJ, Rio de Janeiro 20550-170, Brazil; (C.S.); (A.L.M.-G.)
| | - Verônica Viana Vieira
- Laboratório Interdisciplinar de Pesquisas Médicas, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz—Fiocruz, Rio de Janeiro 21040-361, Brazil; (J.N.R.); (P.V.P.B.); (J.F.C.V.); (V.V.V.)
| | - Michel Abanto Marin
- Scientific and Technological Bioresource Nucleus (BIOREN), Universidad de La Frontera, Temuco 4811230, Chile;
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