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Seth-Smith HMB, Casanova C, Sommerstein R, Meinel DM, Abdelbary MMH, Blanc DS, Droz S, Führer U, Lienhard R, Lang C, Dubuis O, Schlegel M, Widmer A, Keller PM, Marschall J, Egli A. Phenotypic and Genomic Analyses of Burkholderia stabilis Clinical Contamination, Switzerland. Emerg Infect Dis 2020; 25:1084-1092. [PMID: 31107229 PMCID: PMC6537712 DOI: 10.3201/eid2506.172119] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
A recent hospital outbreak related to premoistened gloves used to wash patients exposed the difficulties of defining Burkholderia species in clinical settings. The outbreak strain displayed key B. stabilis phenotypes, including the inability to grow at 42°C; we used whole-genome sequencing to confirm the pathogen was B. stabilis. The outbreak strain genome comprises 3 chromosomes and a plasmid, sharing an average nucleotide identity of 98.4% with B. stabilis ATCC27515 BAA-67, but with 13% novel coding sequences. The genome lacks identifiable virulence factors and has no apparent increase in encoded antimicrobial drug resistance, few insertion sequences, and few pseudogenes, suggesting this outbreak was an opportunistic infection by an environmental strain not adapted to human pathogenicity. The diversity among outbreak isolates (22 from patients and 16 from washing gloves) is only 6 single-nucleotide polymorphisms, although the genome remains plastic, with large elements stochastically lost from outbreak isolates.
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Seth-Smith HM, Casanova C, Sommerstein R, Meinel DM, Abdelbary MM, Blanc DS, Droz S, Führer U, Lienhard R, Lang C, Dubuis O, Schlegel M, Widmer A, Keller PM, Marschall J, Egli A. Phenotypic and Genomic Analyses of Burkholderia stabilisClinical Contamination, Switzerland. Emerg Infect Dis 2019. [DOI: 10.3201/eid2406.172119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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Degrossi JJ, Merino C, Isasmendi AM, Ibarra LM, Collins C, Bo NE, Papalia M, Fernandez JS, Hernandez CM, Papp-Wallace KM, Bonomo RA, Vazquez MS, Power P, Ramirez MS. Whole Genome Sequence Analysis of Burkholderia contaminans FFH2055 Strain Reveals the Presence of Putative β-Lactamases. Curr Microbiol 2019; 76:485-494. [PMID: 30783798 DOI: 10.1007/s00284-019-01653-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 02/11/2019] [Indexed: 12/20/2022]
Abstract
Burkholderia contaminans is a member of the Burkholderia cepacia complex (Bcc), a pathogen with increasing prevalence among cystic fibrosis (CF) patients and the cause of numerous outbreaks due to the use of contaminated commercial products. The antibiotic resistance determinants, particularly β-lactamases, have been poorly studied in this species. In this work, we explored the whole genome sequence (WGS) of a B. contaminans isolate (FFH 2055) and detected four putative β-lactamase-encoding genes. In general, these genes have more than 93% identity with β-lactamase genes found in other Bcc species. Two β-lactamases, a class A (Pen-like, suggested name PenO) and a class D (OXA-like), were further analyzed and characterized. Amino acid sequence comparison showed that Pen-like has 82% and 67% identity with B. multivorans PenA and B. pseudomallei PenI, respectively, while OXA-like displayed strong homology with class D enzymes within the Bcc, but only 22-44% identity with available structures from the OXA family. PCR reactions designed to study the presence of these two genes revealed a heterogeneous distribution among clinical and industrial B. contaminans isolates. Lastly, blaPenO gene was cloned and expressed into E. coli to investigate the antibiotic resistance profile and confers an extended-spectrum β-lactamase (ESBL) phenotype. These results provide insight into the presence of β-lactamases in B. contaminans, suggesting they play a role in antibiotic resistance of these bacteria.
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Affiliation(s)
- José J Degrossi
- Cátedra de Salud Pública e Higiene Ambiental, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Cindy Merino
- Department of Biological Science, California State University Fullerton, 800 N State College Blvd, Fullerton, CA, 92831, USA
| | - Adela M Isasmendi
- Servicio de Bacteriología, Hospital de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Lorena M Ibarra
- Servicio de Bacteriología, Hospital de Niños Ricardo Gutierrez, Buenos Aires, Argentina
| | - Chelsea Collins
- Department of Biological Science, California State University Fullerton, 800 N State College Blvd, Fullerton, CA, 92831, USA
| | - Nicolás E Bo
- Cátedra de Salud Pública e Higiene Ambiental, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Mariana Papalia
- Department of Biological Science, California State University Fullerton, 800 N State College Blvd, Fullerton, CA, 92831, USA
- Cátedra de Microbiología, Laboratorio de Resistencia Bacteriana, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Jennifer S Fernandez
- Department of Biological Science, California State University Fullerton, 800 N State College Blvd, Fullerton, CA, 92831, USA
| | - Claudia M Hernandez
- Servicio de Bacteriología, Hospital de Pediatría Juan P. Garrahan, Buenos Aires, Argentina
| | - Krisztina M Papp-Wallace
- Research Service, Louis Stokes Cleveland Department of Veterans Affairs, Cleveland, OH, 44106, USA
- Department of Medicine, Case Western Reserve University, Cleveland, OH, 44106, USA
- Department of Biochemistry, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Robert A Bonomo
- Research Service, Louis Stokes Cleveland Department of Veterans Affairs, Cleveland, OH, 44106, USA
- Department of Medicine, Case Western Reserve University, Cleveland, OH, 44106, USA
- Department of Biochemistry, Case Western Reserve University, Cleveland, OH, 44106, USA
- Departments of Microbiology and Molecular Biology, Case Western Reserve University, Cleveland, OH, 44106, USA
- Department of Pharmacology, Case Western Reserve University, Cleveland, OH, 44106, USA
| | - Miryam S Vazquez
- Servicio de Bacteriología, Hospital de Niños Ricardo Gutierrez, Buenos Aires, Argentina
| | - Pablo Power
- Cátedra de Microbiología, Laboratorio de Resistencia Bacteriana, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - María S Ramirez
- Department of Biological Science, California State University Fullerton, 800 N State College Blvd, Fullerton, CA, 92831, USA.
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Prevalence of Burkholderia cepacia complex species in cystic fibrosis patients in Argentina during the period 2011-2015. Enferm Infecc Microbiol Clin 2017; 36:431-434. [PMID: 29055510 DOI: 10.1016/j.eimc.2017.09.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 08/29/2017] [Accepted: 09/05/2017] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Burkholderia cepacia (B. cepacia) complex is composed of 20 phylogenetically closely related bacterial species. Some species have emerged as opportunistic pathogens in immunocompromised patients and are responsible for nosocomial outbreaks. The B. cepacia complex is a recognized respiratory pathogen in patients with cystic fibrosis. Burkholderia cenocepacia and Burkholderia multivorans (B. multivorans) are the most prevalent species in the world, according to the literature. However, research groups in Argentina have described a particular local epidemiology, with prevalence of Burkholderia contaminans (B. contaminans). METHODS A total of 68 isolates of B. cepacia complex recovered of 46 cystic fibrosis patients attended at 14 hospitals distributed in 9 provinces of the country were studied. Identification was carried out by conventional phenotypic methods and was confirmed by recA gene sequencing. Sequences were analysed using the BLASTN program and comparing with B. cepacia complex type strains sequences deposited in GenBank. Antibiotic susceptibility tests were performed on isolates of the most prevalent species according to CLSI M45 guidelines. RESULTS The prevalent specie was B. contaminans (49%, n = 33) followed by B. cenocepacia (25%; n = 17). The remaining species were Burkholderia seminalis (B. seminalis) (7%, n = 5), B. cepacia (7%, n = 5), B. multivorans (6%, n = 4), Burkholderia vietnamensis (5%, n=3) and Burkholderia pyrrocinia (1%; n = 1). The 46% of B. contaminans isolates were resistant to SXT and 76% sensitive to MIN, MEM and CAZ. The isolates of B. cenocepacia were 100% resistant to SXT and MIN and 47% to CAZ and MEM. B. seminalis showed high levels of resistance to TMS (80%), CAZ (60%) and MIN (60%), and 60% of the isolates showed intermediate sensitivity to MEM. CONCLUSION Previous reports have described the prevalence of B. contaminans isolation from cystic fibrosis patients in Argentina, Spain and Portugal, and a case of two patients with cystic fibrosis in Ireland has recently been reported. Due to the high frequency with which B. contaminans is isolated in our country, it is necessary to promote the investigation of possible sources of infection and to understand the factors and mechanisms involved in the apparent greater transmissibility of this species. Different antimicrobial resistance profiles were detected between the species.
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