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Article ; Online: Multidrug-resistant toxigenic

Arcari, Gabriele / Hennart, Mélanie / Badell, Edgar / Brisse, Sylvain

2023 Volume 9, Issue 1

Abstract: Antimicrobial therapy is important for case management of diphtheria, but knowledge on the emergence of multidrug-resistance ... ...

Abstract	Antimicrobial therapy is important for case management of diphtheria, but knowledge on the emergence of multidrug-resistance in
MeSH term(s)	Anti-Bacterial Agents/pharmacology ; Corynebacterium diphtheriae/drug effects ; Corynebacterium diphtheriae/genetics ; Genomic Islands ; Drug Resistance, Multiple, Bacterial
Chemical Substances	Anti-Bacterial Agents
Language	English
Publishing date	2023-02-06
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2835258-0
ISSN	2057-5858 ; 2057-5858
ISSN (online)	2057-5858
ISSN	2057-5858
DOI	10.1099/mgen.0.000923
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Article ; Online: Multidrug-resistant

Brémont, Sylvie / Passet, Virginie / Hennart, Mélanie / Fonteneau, Laure / Toubiana, Julie / Badell, Edgar / Brisse, Sylvain

Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin

2023 Volume 28, Issue 46

Abstract: We describe 10 unlinked cases ... ...

Abstract	We describe 10 unlinked cases of
MeSH term(s)	Humans ; Corynebacterium diphtheriae/genetics ; Diphtheria/diagnosis ; Diphtheria/drug therapy ; Diphtheria/epidemiology ; Anti-Bacterial Agents/pharmacology ; Anti-Bacterial Agents/therapeutic use ; France/epidemiology ; Mali
Chemical Substances	Anti-Bacterial Agents
Language	English
Publishing date	2023-11-16
Publishing country	Sweden
Document type	Journal Article
ZDB-ID	1338803-4
ISSN	1560-7917 ; 1025-496X
ISSN (online)	1560-7917
ISSN	1025-496X
DOI	10.2807/1560-7917.ES.2023.28.46.2300615
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Zs.A 5066: Show issues

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Jg. 1995 - 2021: Lesesall (2.OG)
ab Jg. 2022: Lesesaal (EG)

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Article ; Online: Corynebacteria of the

Museux, Kristina / Arcari, Gabriele / Rodrigo, Guido / Hennart, Melanie / Badell, Edgar / Toubiana, Julie / Brisse, Sylvain

Microbiology spectrum

2023 Volume 11, Issue 3, Page(s) e0000623

Abstract: Corynebacteria of ... ...

Abstract	Corynebacteria of the
MeSH term(s)	Humans ; Animals ; Dogs ; Horses ; Rats ; Rhinitis ; Corynebacterium diphtheriae ; Diphtheria/microbiology ; Anti-Bacterial Agents/pharmacology ; France/epidemiology ; Mammals
Chemical Substances	Anti-Bacterial Agents
Language	English
Publishing date	2023-04-06
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2807133-5
ISSN	2165-0497 ; 2165-0497
ISSN (online)	2165-0497
ISSN	2165-0497
DOI	10.1128/spectrum.00006-23
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Article ; Online: Corynebacterium diphtheriae and Corynebacterium ulcerans: development of EUCAST methods and generation of data on which to determine breakpoints.

Berger, Anja / Badell, Edgar / Åhman, Jenny / Matuschek, Erika / Zidane, Nora / Kahlmeter, Gunnar / Sing, Andreas / Brisse, Sylvain

The Journal of antimicrobial chemotherapy

2024 Volume 79, Issue 5, Page(s) 968–976

Abstract: Background: Evidence-based clinical susceptibility breakpoints have been lacking for antimicrobial agents used for diphtheria.: Objectives: We aimed to evaluate broth microdilution and disc diffusion methods and create a dataset of MIC values and ... ...

Abstract	Background: Evidence-based clinical susceptibility breakpoints have been lacking for antimicrobial agents used for diphtheria. Objectives: We aimed to evaluate broth microdilution and disc diffusion methods and create a dataset of MIC values and inhibition zone diameters (ZDs) from which breakpoints could be determined. Methods: We included 400 recent clinical isolates equally distributed by species (Corynebacterium diphtheriae and Corynebacterium ulcerans) and by national surveillance programmes (France and Germany). Non-duplicate toxigenic and non-toxigenic isolates were chosen to enable the inclusion of a diversity of susceptibility levels for the 13 agents tested. Broth microdilution and disc diffusion, using EUCAST methodology for fastidious organisms, were used. Results: The distributions of MIC and ZD values were largely in agreement among methods and countries. Breakpoints to allow categorization of WT isolates as susceptible, i.e. susceptible (S) or susceptible, increased exposure (I) were determined for 12 agents. The data supported a breakpoint for benzylpenicillin and amoxicillin of resistant (R) > 1 mg/L since WT isolates were inhibited by 1 mg/L or less. WT isolates were categorized as I (S ≤ 0.001 mg/L) for benzylpenicillin, emphasizing the need for increased exposure, and S (S ≤ 1 mg/L) for amoxicillin. Erythromycin breakpoints were set at S ≤ 0.06 mg/L and R > 0.06 mg/L. The corresponding ZD breakpoints were determined for all agents except amoxicillin, for which categorization was based on benzylpenicillin results. Conclusions: This work provided a large set of antimicrobial susceptibility data for C. diphtheriae and C. ulcerans, using a harmonized methodology. The dataset allowed EUCAST and experts in the diphtheria field to develop evidence-based breakpoints in January 2023.
MeSH term(s)	Microbial Sensitivity Tests/methods ; Humans ; Corynebacterium/drug effects ; Corynebacterium/isolation & purification ; Anti-Bacterial Agents/pharmacology ; Corynebacterium diphtheriae/drug effects ; Corynebacterium diphtheriae/isolation & purification ; Corynebacterium diphtheriae/genetics ; Germany ; Corynebacterium Infections/microbiology ; Diphtheria/microbiology ; France
Chemical Substances	Anti-Bacterial Agents
Language	English
Publishing date	2024-03-18
Publishing country	England
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	191709-2
ISSN	1460-2091 ; 0305-7453
ISSN (online)	1460-2091
ISSN	0305-7453
DOI	10.1093/jac/dkae056
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Zs.A 1197: Show issues			Location: Je nach Verfügbarkeit (siehe Angabe bei Bestand) bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular Jg. 1995 - 2021: Lesesall (1.OG) ab Jg. 2022: Lesesaal (EG)
Zs.MO 124: Show issues

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Article ; Online: Genomic Epidemiology and Strain Taxonomy of

Guglielmini, Julien / Hennart, Melanie / Badell, Edgar / Toubiana, Julie / Criscuolo, Alexis / Brisse, Sylvain

Journal of clinical microbiology

2021 Volume 59, Issue 12, Page(s) e0158121

Abstract: Corynebacterium diphtheriae is highly transmissible and can cause large diphtheria outbreaks where vaccination coverage is insufficient. Sporadic cases or small clusters are observed in high-vaccination settings. The phylogeography and short timescale ... ...

Abstract	Corynebacterium diphtheriae is highly transmissible and can cause large diphtheria outbreaks where vaccination coverage is insufficient. Sporadic cases or small clusters are observed in high-vaccination settings. The phylogeography and short timescale evolution of C. diphtheriae are not well understood, in part due to a lack of harmonized analytical approaches of genomic surveillance and strain tracking. We combined 1,305 genes with highly reproducible allele calls into a core genome multilocus sequence typing (cgMLST) scheme. We analyzed cgMLST gene diversity among 602 isolates from sporadic clinical cases, small clusters, or large outbreaks. We defined sublineages based on the phylogenetic structure within C. diphtheriae and strains based on the highest number of cgMLST mismatches within documented outbreaks. We performed time-scaled phylogenetic analyses of major sublineages. The cgMLST scheme showed high allele call rate in C. diphtheriae and the closely related species C. belfantii and C. rouxii. We demonstrate its utility to delineate epidemiological case clusters and outbreaks using a 25 mismatches threshold and reveal a number of cryptic transmission chains, most of which are geographically restricted to one or a few adjacent countries. Subcultures of the vaccine strain PW8 differed by up to 20 cgMLST mismatches. Phylogenetic analyses revealed a short-timescale evolutionary gain or loss of the diphtheria toxin and biovar-associated genes. We devised a genomic taxonomy of strains and deeper sublineages (defined using a 500-cgMLST-mismatch threshold), currently comprising 151 sublineages, only a few of which are geographically widespread based on current sampling. The cgMLST genotyping tool and nomenclature was made publicly accessible (https://bigsdb.pasteur.fr/diphtheria). Standardized genome-scale strain genotyping will help tracing transmission and geographic spread of C. diphtheriae. The unified genomic taxonomy of C. diphtheriae strains provides a common language for studies of ecology, evolution, and virulence heterogeneity among C. diphtheriae sublineages.
MeSH term(s)	Corynebacterium diphtheriae/genetics ; Diphtheria/epidemiology ; Diphtheria/microbiology ; Genome, Bacterial ; Genomics ; Humans ; Multilocus Sequence Typing ; Phylogeny
Language	English
Publishing date	2021-09-15
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	390499-4
ISSN	1098-660X ; 0095-1137
ISSN (online)	1098-660X
ISSN	0095-1137
DOI	10.1128/JCM.01581-21
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Zs.A 1188: Show issues

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ab Jg. 2022: Lesesaal (EG)

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Article ; Online: Genomic Epidemiology of Corynebacterium diphtheriae in New Caledonia.

Tessier, Eve / Hennart, Melanie / Badell, Edgar / Passet, Virginie / Toubiana, Julie / Biron, Antoine / Gourinat, Ann-Claire / Merlet, Audrey / Colot, Julien / Brisse, Sylvain

Microbiology spectrum

2023 Volume 11, Issue 3, Page(s) e0461622

Abstract: An increasing number of isolations of Corynebacterium diphtheriae has been observed in recent years in the archipelago of New Caledonia. We aimed to analyze the clinical and microbiological features of samples with C. diphtheriae. All C. diphtheriae ... ...

Abstract	An increasing number of isolations of Corynebacterium diphtheriae has been observed in recent years in the archipelago of New Caledonia. We aimed to analyze the clinical and microbiological features of samples with C. diphtheriae. All C. diphtheriae isolates identified in New Caledonia from May 2015 to May 2019 were included. For each case, a retrospective consultation of the patient files was conducted. Antimicrobial susceptibility phenotypes,
MeSH term(s)	Female ; Humans ; Corynebacterium diphtheriae/genetics ; Diphtheria/epidemiology ; Diphtheria/microbiology ; Multilocus Sequence Typing ; New Caledonia/epidemiology ; Retrospective Studies ; Corynebacterium/genetics ; Genomics ; Anti-Bacterial Agents/pharmacology ; Tetracycline ; Protein Synthesis Inhibitors
Chemical Substances	Anti-Bacterial Agents ; Tetracycline (F8VB5M810T) ; Protein Synthesis Inhibitors
Language	English
Publishing date	2023-04-12
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2807133-5
ISSN	2165-0497 ; 2165-0497
ISSN (online)	2165-0497
ISSN	2165-0497
DOI	10.1128/spectrum.04616-22
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Article ; Online: Corynebacterium ramonii sp. nov., a novel toxigenic member of the Corynebacterium diphtheriae species complex.

Crestani, Chiara / Arcari, Gabriele / Landier, Annie / Passet, Virginie / Garnier, Dorian / Brémont, Sylvie / Armatys, Nathalie / Carmi-Leroy, Annick / Toubiana, Julie / Badell, Edgar / Brisse, Sylvain

Research in microbiology

2023 Volume 174, Issue 7, Page(s) 104113

Abstract: The Corynebacterium diphtheriae species complex comprises seven bacterial species, including Corynebacterium ulcerans, a zoonotic pathogen from multiple animal species. In this work, we characterise phenotypically and genotypically isolates belonging to ... ...

Abstract	The Corynebacterium diphtheriae species complex comprises seven bacterial species, including Corynebacterium ulcerans, a zoonotic pathogen from multiple animal species. In this work, we characterise phenotypically and genotypically isolates belonging to two C. ulcerans lineages. Results from phylogenetic analyses, in silico DNA-DNA hybridization (DDH) and MALDI-TOF spectra differentiate lineage 2 from C. ulcerans lineage 1, which, together with their distinct transmission dynamics (probable human-to-human vs animal-to-human), indicates that lineage 2 is a separate Corynebacterium species, which we propose to name Corynebacterium ramonii. This species is of particular medical interest considering that its human-to-human transmission is likely, and that some C. ramonii isolates carry the diphtheria toxin gene.
Language	English
Publishing date	2023-08-10
Publishing country	France
Document type	Journal Article
ZDB-ID	1004220-9
ISSN	1769-7123 ; 0923-2508
ISSN (online)	1769-7123
ISSN	0923-2508
DOI	10.1016/j.resmic.2023.104113
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Zs.A 890: Show issues

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Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

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Article ; Online: Emerging Corynebacterium diphtheriae Species Complex Infections, Réunion Island, France, 2015-2020.

Garrigos, Thomas / Grimal, Anais / Badell, Edgar / Traversier, Nicolas / Picot, Sandrine / Lignereux, Anne / Ramiandrisoa, Mahery / Ben Cimon, Céline / Jaffar-Bandjee, Marie-Christine / Gbaguidi-Haore, Houssein / Toubiana, Julie / Brisse, Sylvain / Miltgen, Guillaume / Belmonte, Olivier

Emerging infectious diseases

2023 Volume 29, Issue 8, Page(s) 1630–1633

Abstract: Clinical, epidemiologic, and microbiologic analyses revealed emergence of 26 cases of Corynebacterium diphtheriae species complex infections on Réunion Island, France, during 2015-2020. Isolates were genetically diverse, indicating circulation and local ... ...

Abstract	Clinical, epidemiologic, and microbiologic analyses revealed emergence of 26 cases of Corynebacterium diphtheriae species complex infections on Réunion Island, France, during 2015-2020. Isolates were genetically diverse, indicating circulation and local transmission of several diphtheria sublineages. Clinicians should remain aware of the risk for diphtheria and improve diagnostic methods and patient management.
MeSH term(s)	Humans ; Diphtheria/microbiology ; Corynebacterium diphtheriae ; Diphtheria Toxin ; Corynebacterium Infections/microbiology ; Reunion/epidemiology ; Corynebacterium ; France/epidemiology
Chemical Substances	Diphtheria Toxin
Language	English
Publishing date	2023-08-02
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	1380686-5
ISSN	1080-6059 ; 1080-6040
ISSN (online)	1080-6059
ISSN	1080-6040
DOI	10.3201/eid2908.230106
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Zs.A 4778: Show issues

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ab Jg. 2022: Lesesaal (EG)

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Article ; Online: Infection pulmonaire grave à Corynebacterium ulcerans.

Thouvenin, Maxime / Beilouny, Bassam / Badell, Edgar / Guiso, Nicole

Annales de biologie clinique

2016 Volume 74, Issue 1, Page(s) 117–120

Abstract: Corynebacterium ulcerans is a bacterium able to infect humans by inducing a disease close to diphtheria. We describe the case of a 83-year-old patient hospitalized as a matter of urgency in intensive care for which C. ulcerans was isolated in pure ... ...

Title translation	Corynebacterium ulcerans pulmonary infection.
Abstract	Corynebacterium ulcerans is a bacterium able to infect humans by inducing a disease close to diphtheria. We describe the case of a 83-year-old patient hospitalized as a matter of urgency in intensive care for which C. ulcerans was isolated in pure culture in its bronchial samples. Even if the isolate was not secreting toxin in vitro, it possesses the tox gene which motivated the use of specific antitoxin serum. After two months of intensive care the patient went out of the service. It is about a remarkable case of clinicobiologic collaboration.
MeSH term(s)	Aged, 80 and over ; Corynebacterium/isolation & purification ; Corynebacterium Infections/complications ; Critical Care ; Female ; Humans ; Pulmonary Atelectasis/microbiology ; Pulmonary Atelectasis/therapy ; Respiratory Tract Infections/microbiology ; Respiratory Tract Infections/therapy ; Severe Acute Respiratory Syndrome/microbiology ; Severe Acute Respiratory Syndrome/therapy
Language	French
Publishing date	2016-01
Publishing country	France
Document type	Case Reports ; Journal Article
ZDB-ID	2023584-7
ISSN	1950-6112 ; 0003-3898
ISSN (online)	1950-6112
ISSN	0003-3898
DOI	10.1684/abc.2015.1120
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Article ; Online: Non-toxigenic Corynebacterium diphtheriae in hallux ulceration.

Delvallez, Gauthier / Badell, Edgar / Cheng, Sokleaph / Meng, Soda / Tong, Vivandet / Norman, Judy / Toubiana, Julie / Vandelannoote, Koen / Bañuls, Anne-Laure / Hide, Mallorie / Brisse, Sylvain

Journal of infection in developing countries

2022 Volume 16, Issue 6, Page(s) 1118–1121

Abstract: Introduction: Toxigenic Corynebacterium diphtheriae causes classical diphtheria. Skin infections by toxigenic or non-toxigenic Corynebacterium diphtheriae are prevalent in the tropics but are rarely reported.: Case presentation: We report the ... ...

Abstract	Introduction: Toxigenic Corynebacterium diphtheriae causes classical diphtheria. Skin infections by toxigenic or non-toxigenic Corynebacterium diphtheriae are prevalent in the tropics but are rarely reported. Case presentation: We report the identification of a non-toxigenic Corynebacterium diphtheriae (biovar Gravis) isolate in a 52-year-old Cambodian male. The patient presented purulent and non-healing ulcerations on the right hallux. The wound has healed after 7 days of antibiotic therapy with a favourable outcome. Conclusions: This case represents, to our knowledge, the first report of Corynebacterium diphtheriae in Cambodia in the last 10 years, and highlights the lack of diagnosis and notifications of diphtheria. It is important to raise awareness among clinicians and to set up diphtheria surveillance in Cambodia.
MeSH term(s)	Corynebacterium ; Corynebacterium Infections/microbiology ; Corynebacterium diphtheriae ; Diphtheria/diagnosis ; Diphtheria/drug therapy ; Diphtheria/epidemiology ; Hallux ; Humans ; Male ; Middle Aged
Language	English
Publishing date	2022-06-30
Publishing country	Italy
Document type	Case Reports ; Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2394024-4
ISSN	1972-2680 ; 2036-6590
ISSN (online)	1972-2680
ISSN	2036-6590
DOI	10.3855/jidc.16153
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