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Muigg V, Seth-Smith HMB, Adam KM, Weisser M, Hinić V, Blaich A, Roloff T, Heininger U, Schmid H, Kohler M, Graf L, Winterflood DM, Schlaepfer P, Goldenberger D. Novel Organism Verification and Analysis (NOVA) study: identification of 35 clinical isolates representing potentially novel bacterial taxa using a pipeline based on whole genome sequencing. BMC Microbiol 2024; 24:14. [PMID: 38178003 PMCID: PMC10768270 DOI: 10.1186/s12866-023-03163-7] [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: 10/09/2023] [Accepted: 12/15/2023] [Indexed: 01/06/2024] Open
Abstract
BACKGROUND Reliable species identification of cultured isolates is essential in clinical bacteriology. We established a new study algorithm named NOVA - Novel Organism Verification and Analysis to systematically analyze bacterial isolates that cannot be characterized by conventional identification procedures MALDI-TOF MS and partial 16 S rRNA gene sequencing using Whole Genome Sequencing (WGS). RESULTS We identified a total of 35 bacterial strains that represent potentially novel species. Corynebacterium sp. (n = 6) and Schaalia sp. (n = 5) were the predominant genera. Two strains each were identified within the genera Anaerococcus, Clostridium, Desulfovibrio, and Peptoniphilus, and one new species was detected within Citrobacter, Dermabacter, Helcococcus, Lancefieldella, Neisseria, Ochrobactrum (Brucella), Paenibacillus, Pantoea, Porphyromonas, Pseudoclavibacter, Pseudomonas, Psychrobacter, Pusillimonas, Rothia, Sneathia, and Tessaracoccus. Twenty-seven of 35 strains were isolated from deep tissue specimens or blood cultures. Seven out of 35 isolated strains identified were clinically relevant. In addition, 26 bacterial strains that could only be identified at the species level using WGS analysis, were mainly organisms that have been identified/classified very recently. CONCLUSION Our new algorithm proved to be a powerful tool for detection and identification of novel bacterial organisms. Publicly available clinical and genomic data may help to better understand their clinical and ecological role. Our identification of 35 novel strains, 7 of which appear to be clinically relevant, shows the wide range of undescribed pathogens yet to define.
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Affiliation(s)
- Veronika Muigg
- Clinical Bacteriology and Mycology, University Hospital Basel and University of Basel, Petersgraben 4, Basel, 4031, Switzerland
| | - Helena M B Seth-Smith
- Clinical Bacteriology and Mycology, University Hospital Basel and University of Basel, Petersgraben 4, Basel, 4031, Switzerland
- Applied Microbiology Research, Department of Biomedicine, University of Basel, Basel, Switzerland
- Swiss Institute of Bioinformatics, Basel, Switzerland
- Institute of Medical Microbiology, University of Zurich, Zurich, Switzerland
| | - Kai-Manuel Adam
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
| | - Maja Weisser
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
| | - Vladimira Hinić
- Clinical Bacteriology and Mycology, University Hospital Basel and University of Basel, Petersgraben 4, Basel, 4031, Switzerland
- Institute of Medical Microbiology, University of Zurich, Zurich, Switzerland
| | - Annette Blaich
- Clinical Bacteriology and Mycology, University Hospital Basel and University of Basel, Petersgraben 4, Basel, 4031, Switzerland
| | - Tim Roloff
- Clinical Bacteriology and Mycology, University Hospital Basel and University of Basel, Petersgraben 4, Basel, 4031, Switzerland
- Applied Microbiology Research, Department of Biomedicine, University of Basel, Basel, Switzerland
- Swiss Institute of Bioinformatics, Basel, Switzerland
- Institute of Medical Microbiology, University of Zurich, Zurich, Switzerland
| | - Ulrich Heininger
- Infectious Diseases and Vaccinology, University of Basel Children's Hospital, Basel, Switzerland
| | - Hanna Schmid
- Infectious Diseases and Vaccinology, University of Basel Children's Hospital, Basel, Switzerland
| | - Maurus Kohler
- Kantonsspital Baselland (Bruderholz, Liestal, Laufen), Bruderholz, Switzerland
| | - Lukas Graf
- Ear, Nose and Throat Department, University Hospital Basel, Basel, Switzerland
| | - Dylan M Winterflood
- Clinical Bacteriology and Mycology, University Hospital Basel and University of Basel, Petersgraben 4, Basel, 4031, Switzerland
| | - Pascal Schlaepfer
- Laboratory Medicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Daniel Goldenberger
- Clinical Bacteriology and Mycology, University Hospital Basel and University of Basel, Petersgraben 4, Basel, 4031, Switzerland.
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Van Belkum A, Gros MF, Ferry T, Lustig S, Laurent F, Durand G, Jay C, Rochas O, Ginocchio CC. Novel strategies to diagnose prosthetic or native bone and joint infections. Expert Rev Anti Infect Ther 2021; 20:391-405. [PMID: 34384319 DOI: 10.1080/14787210.2021.1967745] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Bone and Joint Infections (BJI) are medically important, costly and occur in native and prosthetic joints. Arthroplasties will increase significantly in absolute numbers over time as well as the incidence of Prosthetic Joint Infections (PJI). Diagnosis of BJI and PJI is sub-optimal. The available diagnostic tests have variable effectiveness, are often below standard in sensitivity and/or specificity, and carry significant contamination risks during the collection of clinical samples. Improvement of diagnostics is urgently needed. AREAS COVERED We provide a narrative review on current and future diagnostic microbiology technologies. Pathogen identification, antibiotic resistance detection, and assessment of the epidemiology of infections via bacterial typing are considered useful for improved patient management. We confirm the continuing importance of culture methods and successful introduction of molecular, mass spectrometry-mediated and next-generation genome sequencing technologies. The diagnostic algorithms for BJI must be better defined, especially in the context of diversity of both disease phenotypes and clinical specimens rendered available. EXPERT OPINION Whether interventions in BJI or PJI are surgical or chemo-therapeutic (antibiotics and bacteriophages included), prior sensitive and specific pathogen detection remains a therapy-substantiating necessity. Innovative tests for earlier and more sensitive and specific detection of bacterial pathogens in BJI are urgently needed.
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Affiliation(s)
- Alex Van Belkum
- bioMérieux, Open Innovation and Partnerships, 3 Route De Port Michaud, La Balme Les Grottes, France
| | | | - Tristan Ferry
- Service Des Maladies Infectieuses Et Tropicales, Hospices Civils De Lyon, Hôpital De La Croix-Rousse, Lyon, France.,Maladies Infectieuses, Université Claude Bernard Lyon 1, Villeurbanne, France.,Centre Interrégional De Référence Pour La Prise En Charge Des Infections Ostéo-articulaires Complexes (Crioac Lyon), Hôpital De La Croix-Rousse, Lyon, France.,Ciri - Centre International De Recherche En Infectiologie, Inserm, U1111, Université́ Claude Bernard Lyon 1CNRS, UMR5308, Ecole Normale Supérieure De Lyon, Univ Lyon, Lyon, France
| | - Sebastien Lustig
- Maladies Infectieuses, Université Claude Bernard Lyon 1, Villeurbanne, France.,Service De Chirurgie Orthopédique, Hôpital De La Croix-Rousse, Lyon, France
| | - Frédéric Laurent
- Service Des Maladies Infectieuses Et Tropicales, Hospices Civils De Lyon, Hôpital De La Croix-Rousse, Lyon, France.,Ciri - Centre International De Recherche En Infectiologie, Inserm, U1111, Université́ Claude Bernard Lyon 1CNRS, UMR5308, Ecole Normale Supérieure De Lyon, Univ Lyon, Lyon, France
| | | | - Corinne Jay
- bioMérieux, BioFire Development Emea, Grenoble, France
| | - Olivier Rochas
- Corporate Business Development, bioMérieux, Marcy-l'Étoile, France
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Goldenberger D, Søgaard KK, Cuénod A, Seth-Smith H, de Menezes D, Vandamme P, Egli A. Cutibacterium modestum and "Propionibacterium humerusii" represent the same species that is commonly misidentified as Cutibacterium acnes. Antonie van Leeuwenhoek 2021; 114:1315-1320. [PMID: 33961161 PMCID: PMC8286925 DOI: 10.1007/s10482-021-01589-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 04/26/2021] [Indexed: 11/30/2022]
Abstract
Cutibacterium spp. play an increasing role in soft tissue and implant-associated infections. We isolated a novel Cutibacterium spp. from an implant and investigated this isolate using multiple identification approaches. Correct identification was hampered by inconsistent reference data. The isolate was characterised using conventional methods such as Gram stain, MALDI-TOF MS, and antimicrobial susceptibility testing against multiple antimicrobials. Partial 16S rRNA gene sequencing and whole genome sequencing were also performed. In addition, we summarised the available published sequence data and compared prior data to our strain. Conventional phenotypic identification of our isolate resulted in Cutibacterium spp. After analysis of 16S rRNA gene and genome sequences, our isolate was identified as C. modestum, a very recently described species. The 16S rRNA gene analysis was hampered by three incorrect nucleotides within the 16S rRNA gene reference sequence of C. modestum M12T (accession no. LC466959). We also clearly demonstrate that this novel species is identical to tentatively named "Propionibacterium humerusii". Retrospective data analysis indicates that C. modestum is a clinically important Cutibacterium species often misidentified as C. acnes. The isolation and identification of Cutibacterium spp. is still a challenge. The correct description of very recently named C. modestum and the availability of a correct 16S rRNA sequence of the type strain may help to clarify the taxonomical uncertainty concerning "P. humerusii". The novel C. modestum is an additional, clinically important species within the genus Cutibacterium and may represent a new member of the human skin microbiome.
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Affiliation(s)
- Daniel Goldenberger
- Division of Clinical Bacteriology and Mycology, University Hospital Basel, University of Basel, Petersgraben 4, 4031, Basel, Switzerland.
| | - Kirstine K Søgaard
- Division of Clinical Bacteriology and Mycology, University Hospital Basel, University of Basel, Petersgraben 4, 4031, Basel, Switzerland.,Applied Microbiology Research, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Aline Cuénod
- Applied Microbiology Research, Department of Biomedicine, University of Basel, Basel, Switzerland
| | - Helena Seth-Smith
- Division of Clinical Bacteriology and Mycology, University Hospital Basel, University of Basel, Petersgraben 4, 4031, Basel, Switzerland.,Applied Microbiology Research, Department of Biomedicine, University of Basel, Basel, Switzerland
| | | | - Peter Vandamme
- Laboratory of Microbiology, Department of Biochemistry and Biotechnology, Faculty of Sciences, Ghent University, Ghent, Belgium.,BCCM/LMG Bacteria Collection, Department of Biochemistry and Biotechnology, Faculty of Sciences, Ghent University, Ghent, Belgium
| | - Adrian Egli
- Division of Clinical Bacteriology and Mycology, University Hospital Basel, University of Basel, Petersgraben 4, 4031, Basel, Switzerland.,Applied Microbiology Research, Department of Biomedicine, University of Basel, Basel, Switzerland
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Bloch-Infanger C, Furrer K, Wiese M, Hiebinger A, Bucher CM, Kopp S, Hinić V, Goldenberger D. An unexpected cause for cavitary pneumonia and empyema. Infection 2015; 44:539-41. [PMID: 26621335 DOI: 10.1007/s15010-015-0861-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 11/14/2015] [Indexed: 12/27/2022]
Abstract
Tularemia is an emerging zoonotic disease mainly of the Northern Hemisphere caused by the Gram-negative coccobacillus Francisella tularensis. It is affecting a wide range of animals and causes human disease after insect and tick bites, skin contact, ingestion and inhalation. A 66-year-old man presented to our clinic with cavitary pneumonia and distinct pleural effusion. After failure of empiric antibiotic therapy, thoracoscopic assisted decortication and partial excision of the middle lobe were conducted. Conventional culture methods and broad-range bacterial PCR including RipSeqMixed analysis were performed from the excised biopsies. Culture results remained negative but broad-range PCR targeting the first half of the 16S rRNA gene revealed F. tularensis DNA. This result was confirmed by F. tularensis-specific PCR and by serology. The source of infection could not be explored. To conclude, we report the rare clinical picture of a community-acquired pneumonia followed by pleural effusion and empyema due to F. tularensis. Broad range bacterial PCR proved to be a powerful diagnostic tool to detect the etiologic organism.
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Affiliation(s)
| | - Katarzyna Furrer
- Department of Thoracic Surgery, University Hospital Basel, Basel, Switzerland
| | - Mark Wiese
- Department of Thoracic Surgery, University Hospital Basel, Basel, Switzerland
| | - Andreas Hiebinger
- Department of Thoracic Surgery, University Hospital Basel, Basel, Switzerland
| | | | - Sébastien Kopp
- Department of Radiology, University Hospital Basel, Basel, Switzerland
| | - Vladimira Hinić
- Department of Clincal Microbiology, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland
| | - Daniel Goldenberger
- Department of Clincal Microbiology, University Hospital Basel, Petersgraben 4, 4031, Basel, Switzerland.
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Goldenberger D, Claas GJ, Bloch-Infanger C, Breidthardt T, Suter B, Martínez M, Neumayr A, Blaich A, Egli A, Osthoff M. Louse-borne relapsing fever (Borrelia recurrentis) in an Eritrean refugee arriving in Switzerland, August 2015. Euro Surveill 2015. [DOI: 10.2807/1560-7917.es2015.20.32.21204] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We report an imported case of louse-borne relapsing fever in a young adult Eritrean refugee who presented with fever shortly after arriving in Switzerland. Analysis of blood smears revealed spirochetes identified as Borrelia recurrentis by 16S rRNA gene sequencing. We believe that louse-borne relapsing fever may be seen more frequently in Europe as a consequence of a recent increase in refugees from East Africa travelling to Europe under poor hygienic conditions in confined spaces.
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Affiliation(s)
- D Goldenberger
- Division of Clinical Microbiology, University Hospital Basel, Basel, Switzerland
- These authors contributed equally to this work
| | - G J Claas
- These authors contributed equally to this work
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
| | - C Bloch-Infanger
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
| | - T Breidthardt
- Division of Internal Medicine, University Hospital Basel, Basel, Switzerland
| | - B Suter
- Division of Diagnostic Haematology, University Hospital Basel, Basel, Switzerland
| | - M Martínez
- Division of Diagnostic Haematology, University Hospital Basel, Basel, Switzerland
| | - A Neumayr
- Swiss Tropical and Public Health Institute, Basel, Switzerland
| | - A Blaich
- Division of Clinical Microbiology, University Hospital Basel, Basel, Switzerland
| | - A Egli
- Division of Clinical Microbiology, University Hospital Basel, Basel, Switzerland
| | - M Osthoff
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Basel, Basel, Switzerland
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