1
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Wang S, Bai J, Qiao J. A Case Report of Possibly Related Acute Generalized Exanthematous Pustulosis with Staphylococcus pettenkoferi. Clin Cosmet Investig Dermatol 2023; 16:673-676. [PMID: 36960180 PMCID: PMC10029364 DOI: 10.2147/ccid.s399138] [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: 01/06/2023] [Accepted: 03/05/2023] [Indexed: 03/19/2023]
Abstract
Acute generalized exanthematous pustulosis (AGEP), an uncommon severe cutaneous adverse reaction, is believed to be a T cell-mediated hypersensitivity reaction, of which the most common cause is medication. However, infections have also been reported to be associated with AGEP. Here, we present a case of AGEP possibly related with Staphylococcus pettenkoferi.
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Affiliation(s)
- Su Wang
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, People’s Republic of China
| | - Juan Bai
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, People’s Republic of China
| | - Jianjun Qiao
- Department of Dermatology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, People’s Republic of China
- Correspondence: Jianjun Qiao; Juan Bai, Email ;
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2
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Phenotypic and Genotypic Virulence Characterisation of Staphylococcus pettenkoferi Strains Isolated from Human Bloodstream and Diabetic Foot Infections. Int J Mol Sci 2022; 23:ijms232415476. [PMID: 36555117 PMCID: PMC9778964 DOI: 10.3390/ijms232415476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/30/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
Staphylococcus pettenkoferi is a recently described coagulase-negative Staphylococcus identified in human diseases, especially in infections of foot ulcers in patients living with diabetes mellitus. To date, its pathogenicity remains underexplored. In this study, whole-genome analysis was performed on a collection of 29 S. pettenkoferi clinical strains isolated from bloodstream and diabetic foot infections with regard to their phylogenetic relationships and comprehensive analysis of their resistome and virulome. Their virulence was explored by their ability to form biofilm, their growth kinetics and in an in vivo zebrafish embryo infection model. Our results identified two distinct clades (I and II) and two subclades (I-a and I-b) with notable genomic differences. All strains had a slow bacterial growth. Three profiles of biofilm formation were noted, with 89.7% of isolates able to produce biofilm and harbouring a high content of biofilm-encoding genes. Two virulence profiles were also observed in the zebrafish model irrespective of the strains' origin or biofilm profile. Therefore, this study brings new insights in S. pettenkoferi pathogenicity.
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3
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Perrone MR, Romano S, De Maria G, Tundo P, Bruno AR, Tagliaferro L, Maffia M, Fragola M. Simultaneous monitoring of SARS-CoV-2 and bacterial profiles from the air of hospital environments with COVID-19-affected patients. AEROBIOLOGIA 2022; 38:391-412. [PMID: 36097443 PMCID: PMC9453715 DOI: 10.1007/s10453-022-09754-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
UNLABELLED The SARS-CoV-2 presence and the bacterial community profile in air samples collected at the Intensive Care Unit (ICU) of the Operational Unit of Infectious Diseases of Santa Caterina Novella Hospital in Galatina (Lecce, Italy) have been evaluated in this study. Air samplings were performed in different rooms of the ICU ward with and without COVID-19 patients. No sample was found positive to SARS-CoV-2, according to Allplex 2019-nCoV Assay. The airborne bacterial community profiles determined by the 16S rRNA gene metabarcoding approach up to the species level were characterized by richness and biodiversity indices, Spearman correlation coefficients, and Principal Coordinate Analysis. Pathogenic and non-pathogenic bacterial species, also detected in outdoor air samples, were found in all collected indoor samples. Staphylococcus pettenkoferi, Corynebacterium tuberculostearicum, and others coagulase-negative staphylococci, detected at high relative abundances in all the patients' rooms, were the most abundant pathogenic species. The highest mean relative abundance of S. pettenkoferi and C. tuberculostearicum suggested that they were likely the main pathogens of COVID-19 patients at the ICU ward of this study. The identification of nosocomial pathogens representing potential patients' risks in ICU COVID-19 rooms and the still controversial airborne transmission of the SARS-CoV-2 are the main contributions of this study. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10453-022-09754-7.
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Affiliation(s)
- Maria Rita Perrone
- Department of Mathematics and Physics, University of Salento, 73100 Lecce, Italy
| | - Salvatore Romano
- Department of Mathematics and Physics, University of Salento, 73100 Lecce, Italy
| | - Giuseppe De Maria
- Presidio Ospedaliero Santa Caterina Novella, Azienda Sanitaria Locale Lecce, 73013 Galatina, Lecce, Italy
| | - Paolo Tundo
- Presidio Ospedaliero Santa Caterina Novella, Azienda Sanitaria Locale Lecce, 73013 Galatina, Lecce, Italy
| | - Anna Rita Bruno
- Presidio Ospedaliero Santa Caterina Novella, Azienda Sanitaria Locale Lecce, 73013 Galatina, Lecce, Italy
| | - Luigi Tagliaferro
- Presidio Ospedaliero Santa Caterina Novella, Azienda Sanitaria Locale Lecce, 73013 Galatina, Lecce, Italy
| | - Michele Maffia
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy
| | - Mattia Fragola
- Department of Mathematics and Physics, University of Salento, 73100 Lecce, Italy
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4
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Perrone MR, Romano S, De Maria G, Tundo P, Bruno AR, Tagliaferro L, Maffia M, Fragola M. Compositional Data Analysis of 16S rRNA Gene Sequencing Results from Hospital Airborne Microbiome Samples. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:10107. [PMID: 36011742 PMCID: PMC9408509 DOI: 10.3390/ijerph191610107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/05/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
The compositional analysis of 16S rRNA gene sequencing datasets is applied to characterize the bacterial structure of airborne samples collected in different locations of a hospital infection disease department hosting COVID-19 patients, as well as to investigate the relationships among bacterial taxa at the genus and species level. The exploration of the centered log-ratio transformed data by the principal component analysis via the singular value decomposition has shown that the collected samples segregated with an observable separation depending on the monitoring location. More specifically, two main sample clusters were identified with regards to bacterial genera (species), consisting of samples mostly collected in rooms with and without COVID-19 patients, respectively. Human pathogenic genera (species) associated with nosocomial infections were mostly found in samples from areas hosting patients, while non-pathogenic genera (species) mainly isolated from soil were detected in the other samples. Propionibacterium acnes, Staphylococcus pettenkoferi, Corynebacterium tuberculostearicum, and jeikeium were the main pathogenic species detected in COVID-19 patients' rooms. Samples from these locations were on average characterized by smaller richness/evenness and diversity than the other ones, both at the genus and species level. Finally, the ρ metrics revealed that pairwise positive associations occurred either between pathogenic or non-pathogenic taxa.
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Affiliation(s)
- Maria Rita Perrone
- Department of Mathematics and Physics, University of Salento, 73100 Lecce, Italy
| | - Salvatore Romano
- Department of Mathematics and Physics, University of Salento, 73100 Lecce, Italy
| | - Giuseppe De Maria
- Presidio Ospedaliero Santa Caterina Novella, Azienda Sanitaria Locale Lecce, 73013 Galatina, Italy
| | - Paolo Tundo
- Presidio Ospedaliero Santa Caterina Novella, Azienda Sanitaria Locale Lecce, 73013 Galatina, Italy
| | - Anna Rita Bruno
- Presidio Ospedaliero Santa Caterina Novella, Azienda Sanitaria Locale Lecce, 73013 Galatina, Italy
| | - Luigi Tagliaferro
- Presidio Ospedaliero Santa Caterina Novella, Azienda Sanitaria Locale Lecce, 73013 Galatina, Italy
| | - Michele Maffia
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy
| | - Mattia Fragola
- Department of Mathematics and Physics, University of Salento, 73100 Lecce, Italy
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5
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Hadano Y, Hijikata T, Miura A, Fujii S, Awaya Y. Staphylococcus pettenkoferi bacteremia in a tertiary care hospital in Japan: Report of three cases. J Infect Chemother 2022; 28:1424-1426. [PMID: 35724914 DOI: 10.1016/j.jiac.2022.06.009] [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: 03/04/2022] [Revised: 06/10/2022] [Accepted: 06/13/2022] [Indexed: 10/18/2022]
Abstract
Staphylococcus pettenkoferi is a coagulase-negative staphylococci (CoNS) species first isolated in 2002. Human infections caused by S. pettenkoferi are rare. We herein report three cases of S. pettenkoferi bacteremia in a tertiary care hospital in Japan. Staphylococcus pettenkoferi can be a causative pathogen of catheter related blood stream infection including complicated infection, and unknown source of bacteremia. All of the patients presented with fever and shaking chills, and good clinical outcome. Further research is needed to determine the role of this organism as a pathogen and frequency.
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Affiliation(s)
- Yoshiro Hadano
- Antimicrobial Stewardship Team, Itabashi Chuo Medical Center, Itabashi-ku, Tokyo, Japan; Division of Infection Control and Prevention, Shimane University Hospital, Izumo Shimane, Japan.
| | - Toshiyuki Hijikata
- Department of Emergency Medicine, Itabashi Chuo Medical Center, Itabashi-ku, Tokyo, Japan; Department of Health Data Science, Graduate School of Data Science, Yokohama City University, Kanagawa, Japan
| | - Ayako Miura
- Department of Clinical Laboratory, Itabashi Chuo Medical Center, Itabashi-ku, Tokyo, Japan
| | - Shigeo Fujii
- Department of Clinical Laboratory, Itabashi Chuo Medical Center, Itabashi-ku, Tokyo, Japan
| | - Yukikazu Awaya
- Department of Pulmonary Medicine, Itabashi Chuo Medical Center, Itabashi-ku, Tokyo, Japan; Department of General Medicine, Itabashi Chuo Medical Center, Itabashi-ku, Tokyo, Japan
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6
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Gisriel SD, Jacobs JW. The first reported case of Staphylococcus pettenkoferi prosthetic joint infection. Microbes Infect 2022; 24:104978. [PMID: 35421570 DOI: 10.1016/j.micinf.2022.104978] [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: 12/06/2021] [Revised: 03/28/2022] [Accepted: 04/01/2022] [Indexed: 10/18/2022]
Abstract
Staphylococcus aureus and Staphylococcus epidermidis are among the most frequent causes of prosthetic joint infections (PJIs). Staphylococcus pettenkoferi, a coagulase-negative Staphylococcal species first described in 2002, has been detected in fewer than 20 patients with true infection (15 cases of bacteremia and 1 case of osteomyelitis). This organism has never been implicated in a PJI, likely owing in part to the difficulty in identification via biochemical methods. S. pettenkoferi is almost universally reported to be a contaminant when detected. We report the first case of a PJI caused by S. pettenkoferi, highlighting its infectious potential in specific patient populations.
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Affiliation(s)
- Savanah D Gisriel
- Departments of Laboratory Medicine and Pathology, Yale School of Medicine, 333 Cedar Street, New Haven, CT, 06520, USA.
| | - Jeremy W Jacobs
- Department of Laboratory Medicine, Yale School of Medicine, New Haven, CT, USA.
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7
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Kierzkowska M, Markowska K, Majewska A. Knowledge, Attitude and Practice Regarding Staphylococcus pettenkoferi. Infect Dis Rep 2022; 14:112-120. [PMID: 35200442 PMCID: PMC8872105 DOI: 10.3390/idr14010015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/31/2022] [Accepted: 02/08/2022] [Indexed: 02/01/2023] Open
Abstract
Staphylococcus pettenkoferi is a coagulase-negative staphylococcus, first described in 2002. Using medical databases, i.e., Scopus, Web of Science, Pubmed, and Embase, we identified and analysed research, reports, and opinions dealing with S. pettenkoferi. Published data allow us to conclude that S. pettenkoferi is a human commensal, opportunistic bacterium and may be isolated from the environment and animals. The involvement of S. pettenkoferi in bloodstream infection and osteomyelitis has been described, but its clinical relevance is not fully understood, so far. This work summarizes knowledge about S. pettenkoferi and reveals the difficulties and rules for interpreting the results of microbiological tests, when S. pettenkoferi has been identified in the blood sample. Clinical and laboratory criteria, recommended by Centers for Disease Control and Prevention (CDC) and the third international consensus definitions of sepsis and septic shock (Sepsis-3), are important to determine whether the presence of bacteria in the sample is a consequence of an infection, contamination from the environment, or translocation of the bacteria outside the place of its natural existence. The precise identification of bacteria from the blood sample and recognizing the true bacteraemia are critical to implement the appropriate procedures and make decisions concerning the patient’s medical care.
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8
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Investigating Pathogenicity and Virulence of Staphylococcus pettenkoferi: An Emerging Pathogen. Int J Mol Sci 2021; 22:ijms222413614. [PMID: 34948410 PMCID: PMC8704685 DOI: 10.3390/ijms222413614] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/14/2021] [Accepted: 12/16/2021] [Indexed: 01/22/2023] Open
Abstract
Staphylococcus pettenkoferi is a coagulase-negative Staphylococcus identified in 2002 that has been implicated in human diseases as an opportunistic pathogenic bacterium. Its multiresistant character is becoming a major health problem, yet the pathogenicity of S. pettenkoferi is poorly characterized. In this study, the pathogenicity of a S. pettenkoferi clinical isolate from diabetic foot osteomyelitis was compared with a Staphylococcus aureus strain in various in vitro and in vivo experiments. Growth kinetics were compared against S. aureus, and bacteria survival was assessed in the RAW 264.7 murine macrophage cell line, the THP-1 human leukemia monocytic cell line, and the HaCaT human keratinocyte cell line. Ex vivo analysis was performed in whole blood survival assays and in vivo assays via the infection model of zebrafish embryos. Moreover, whole-genome analysis was performed. Our results show that S. pettenkoferi was able to survive in human blood, human keratinocytes, murine macrophages, and human macrophages. S. pettenkoferi demonstrated its virulence by causing substantial embryo mortality in the zebrafish model. Genomic analysis revealed virulence factors such as biofilm-encoding genes (e.g., icaABCD; rsbUVW) and regulator-encoding genes (e.g., agr, mgrA, sarA, saeS) well characterized in S. aureus. This study thus advances the knowledge of this under-investigated pathogen and validates the zebrafish infection model for this bacterium.
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9
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The clinical significance of staphylococcus pettenkoferi: a retrospective review at a tertiary care medical center. Diagn Microbiol Infect Dis 2021; 102:115592. [PMID: 34839128 DOI: 10.1016/j.diagmicrobio.2021.115592] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 11/23/2022]
Abstract
Staphylococcus pettenkoferi is a recently described coagulase-negative staphylococcal pathogen. We retrospectively reviewed 25 cases in which S. pettenkoferi was identified in routine cultures (12 blood, 13 other). Most were found with commensal flora and considered clinically insignificant, but its significance was uncertain in two cases from non-healing, deep foot wounds.
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10
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Wysocka A, Jagielska E, Łężniak Ł, Sabała I. Two New M23 Peptidoglycan Hydrolases With Distinct Net Charge. Front Microbiol 2021; 12:719689. [PMID: 34630350 PMCID: PMC8498115 DOI: 10.3389/fmicb.2021.719689] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 08/16/2021] [Indexed: 11/13/2022] Open
Abstract
Bacterial peptidoglycan hydrolases play an essential role in cell wall metabolism during bacterial growth, division, and elongation (autolysins) or in the elimination of closely related species from the same ecological niche (bacteriocins). Most studies concerning the peptidoglycan hydrolases present in Gram-positive bacteria have focused on clinically relevant Staphylococcus aureus or the model organism Bacillus subtilis, while knowledge relating to other species remains limited. Here, we report two new peptidoglycan hydrolases from the M23 family of metallopeptidases derived from the same staphylococcal species, Staphylococcus pettenkoferi. They share modular architecture, significant sequence identity (60%), catalytic and binding residue conservation, and similar modes of activation, but differ in gene distribution, putative biological role, and, strikingly, in their isoelectric points (pIs). One of the peptides has a high pI, similar to that reported for all M23 peptidases evaluated to date, whereas the other displays a low pI, a unique feature among M23 peptidases. Consequently, we named them SpM23_B (Staphylococcus pettenkoferi M23 "Basic") and SpM23_A (Staphylococcus pettenkoferi M23 "Acidic"). Using genetic and biochemical approaches, we have characterized these two novel lytic enzymes, both in vitro and in their physiological context. Our study presents a detailed characterization of two novel and clearly distinct peptidoglycan hydrolases to understand their role in bacterial physiology.
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Affiliation(s)
- Alicja Wysocka
- International Institute of Molecular and Cell Biology in Warsaw, Warsaw, Poland
| | - Elżbieta Jagielska
- International Institute of Molecular and Cell Biology in Warsaw, Warsaw, Poland
| | - Łukasz Łężniak
- International Institute of Molecular and Cell Biology in Warsaw, Warsaw, Poland
| | - Izabela Sabała
- International Institute of Molecular and Cell Biology in Warsaw, Warsaw, Poland
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11
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Staphylococcus pettenkoferi Bacteremia in an American Intensive Care Unit. Case Rep Infect Dis 2021; 2021:5235691. [PMID: 34631179 PMCID: PMC8494585 DOI: 10.1155/2021/5235691] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 09/21/2021] [Indexed: 11/18/2022] Open
Abstract
Coagulase-negative staphylococci (CoNS) are considered the most common cause of nosocomial bloodstream infections; yet, these species are frequently designated as contaminants in the absence of systemic signs and symptoms of infection. Immunocompromised patients or those with prosthetic devices are at increased risk for clinically significant bacteremia. With the advent of matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) in clinical practice, there has been improved specificity of CoNS isolate identification and further elucidation of underrecognized pathogenic species. Staphylococcus pettenkoferi was a novel CoNS species first identified in 2002 and thought to be misdiagnosed as other CoNS due to limitations in biochemical identification. There is increasing identification of S. pettenkoferi isolates; however, there are limited case reports of clinically significant S. pettenkoferi bacteremia and no reported cases within the United States. We present the first known case of S. pettenkoferi from an American intensive care unit.
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12
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Aragão BB, Trajano SC, de Oliveira RP, Sobral da Silva DM, de Carvalho RG, Juliano MA, Pinheiro Junior JW, Mota RA. Multiresistant zoonotic pathogens isolated from goat milk in Northeastern Brazil. Comp Immunol Microbiol Infect Dis 2021; 79:101701. [PMID: 34455153 DOI: 10.1016/j.cimid.2021.101701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/23/2021] [Indexed: 12/29/2022]
Abstract
Dairy goats play a significant role in socio-economic, cultural, and nutritional development in many countries. This study aimed to identify multiresistant zoonotic pathogens causing mastitis in goats, in addition to characterizing them for the presence of resistance genes and phenotypic resistance. A total of 714 milk samples from 357 lactating goats in 12 farms in the Northeast region of Brazil were analyzed. The isolates were submitted to Matrix Associated Laser Desorption-Ionization - Time of Flight to identify bacterial species, Polymerase Chain Reaction (PCR) to search for resistance genes, and an antibiogram to evaluate the phenotypic profile of antimicrobial resistance. A total of 214 pathogens were identified and bacterial prevalence was 83.29 % (178/214) Staphylococcus spp.; 6.50 % (14/214) Micrococcus luteus; 3.73 % (8/214) Corynebacterium spp.; 2.80 % (6/214) Bacillus spp.; 1.38 % (3/214) Escherichia coli; 0.92 % (2/214) Enterobacter cloacae; 0.46 % (1/214) Aerococcus viridans; 0.46 % (1/214) Morganella morganii; and 0.46 % (1/214) Turicella otitidis. As for gene frequency, 64.60 % (115/178) of the isolates carried the blaZ gene; 37.07 % (66/178) norA; 22.47 % (40/178) tet(L); 16.85 % (30/178) tet(M); 14.04 % (25/178) norB; 8.42 % (15/178) vanA; 7.30 % (13/178) msrA; 6.41 % (5/178) tet-38; 4.49 % (8/178) norC; 2.25 % (4/178) mecA; and 0.56 % (1/178) vanB. Emerging multiresistant zoonotic pathogens are present in the goat milk production chain, especially the coagulase-negative Staphylococcus species that pose a risk to human and animal health.
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Affiliation(s)
- Breno Bezerra Aragão
- Federal Rural University of Pernambuco - UFRPE, Department of Veterinary Medicine - R. Manuel de Medeiros, s/n - Dois Irmãos, CEP. 52171-900, Recife, PE, Brazil.
| | - Sabrina Cândido Trajano
- Federal Rural University of Pernambuco - UFRPE, Department of Veterinary Medicine - R. Manuel de Medeiros, s/n - Dois Irmãos, CEP. 52171-900, Recife, PE, Brazil
| | - Raylson Pereira de Oliveira
- Federal Rural University of Pernambuco - UFRPE, Department of Veterinary Medicine - R. Manuel de Medeiros, s/n - Dois Irmãos, CEP. 52171-900, Recife, PE, Brazil
| | - Débora Mirelly Sobral da Silva
- Federal Rural University of Pernambuco - UFRPE, Department of Veterinary Medicine - R. Manuel de Medeiros, s/n - Dois Irmãos, CEP. 52171-900, Recife, PE, Brazil
| | - Rafaella Grenfell de Carvalho
- Federal University of São Paulo - UNIFESP, Institute of Pharmacology and Molecular Biology, Rua Três de Maio, 100 - Vila Clementino, CEP. 04044-020, São Paulo, SP, Brazil
| | - Maria Aparecida Juliano
- Federal University of São Paulo - UNIFESP, Institute of Pharmacology and Molecular Biology, Rua Três de Maio, 100 - Vila Clementino, CEP. 04044-020, São Paulo, SP, Brazil
| | - José Wilton Pinheiro Junior
- Federal Rural University of Pernambuco - UFRPE, Department of Veterinary Medicine - R. Manuel de Medeiros, s/n - Dois Irmãos, CEP. 52171-900, Recife, PE, Brazil
| | - Rinaldo Aparecido Mota
- Federal Rural University of Pernambuco - UFRPE, Department of Veterinary Medicine - R. Manuel de Medeiros, s/n - Dois Irmãos, CEP. 52171-900, Recife, PE, Brazil
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13
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Eke UA, Fairfax MR, Mitchell R, Taylor M, Salimnia H. Staphylococcus pettenkoferi-positive Blood cultures in Hospitalized Patients in a Multi-site Tertiary Center. Diagn Microbiol Infect Dis 2020; 99:115284. [PMID: 33485136 DOI: 10.1016/j.diagmicrobio.2020.115284] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/17/2020] [Accepted: 11/28/2020] [Indexed: 01/23/2023]
Abstract
Staphylococcus pettenkoferi (S.pettenkoferi), originally described in Germany in 2002 by Trülzsch et al, is a coagulase negative staphylococcus whose clinical relevance is yet to be determined. With about 10 case reports in the literature from several parts of the world, there is no data on S. pettenkoferi infection from the United States. This is a retrospective cohort study of 80 patients ≥ 18 years of age who had at least 1 S. pettenkoferi-positive blood culture, identified by matrix-assisted laser desorption/ionization time-of-flight at a tertiary academic center in Detroit, Michigan. We describe the features of S. pettenkoferi-positive blood cultures in order to identify cases of true bacteremia. The mean age of the cohort was 66 ± 16 years and 1 out of 3 had immunosuppressing conditions. No case of true S.pettenkoferi bacteremia was identified. More studies are needed to determine its role as a pathogen in the United States.
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Affiliation(s)
- Uzoamaka A Eke
- Division of Infectious Diseases, Detroit Medical Center, Detroit, MI, USA.
| | - Marilynn R Fairfax
- Department of Pathology, Wayne State University School of Medicine, Detroit, MI, USA; Microbiology Division, DMC University Laboratories, Detroit Medical Center, Detroit, MI, USA
| | - Robert Mitchell
- Microbiology Division, DMC University Laboratories, Detroit Medical Center, Detroit, MI, USA
| | - Maureen Taylor
- Microbiology Division, DMC University Laboratories, Detroit Medical Center, Detroit, MI, USA
| | - Hossein Salimnia
- Department of Pathology, Wayne State University School of Medicine, Detroit, MI, USA; Microbiology Division, DMC University Laboratories, Detroit Medical Center, Detroit, MI, USA
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14
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Otieno V, Xie G, Cheng Q, Daligault H, Davenport K, Gleasner C, Jacobs L, Kubicek-Sutherland J, LeCuyer T, Raballah E, Doggett N, Mukundan H, McMahon B, Perkins DJ. Genome Sequence of Staphylococcus pettenkoferi Strain SMA0010-04 (UGA20), a Clinical Isolate from Siaya County Referral Hospital in Siaya, Kenya. Microbiol Resour Announc 2019; 8:e01626-18. [PMID: 31023805 PMCID: PMC6486262 DOI: 10.1128/mra.01626-18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 02/20/2019] [Indexed: 11/20/2022] Open
Abstract
Here, we report the sequence of a Staphylococcus pettenkoferi clinical isolate, strain SMA0010-04 (UGA20), which contains the PC1 beta-lactamase (blaZ) gene.
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Affiliation(s)
- Vincent Otieno
- University of New Mexico Laboratories of Parasitic and Viral Diseases, Kisumu, Kenya
| | - Gary Xie
- Biosecurity and Public Health, Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - Qiuying Cheng
- Department of Internal Medicine, Center for Global Health, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| | - Hajnalka Daligault
- Biosecurity and Public Health, Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - Karen Davenport
- Biosecurity and Public Health, Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - Cheryl Gleasner
- Biosecurity and Public Health, Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - Lindsey Jacobs
- Theoretical Biology and Biophysics, Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - Jessica Kubicek-Sutherland
- Physical Chemistry and Applied Spectroscopy, Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - Tessa LeCuyer
- Department of Internal Medicine, Center for Global Health, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
| | - Evans Raballah
- Department of Medical Laboratory Sciences, School of Public Health, Biomedical Sciences and Technology, Masinde Muliro University of Science and Technology, Kakamega, Kenya
| | - Norman Doggett
- Biosecurity and Public Health, Bioscience Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - Harshini Mukundan
- Physical Chemistry and Applied Spectroscopy, Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - Benjamin McMahon
- Theoretical Biology and Biophysics, Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico, USA
| | - Douglas J Perkins
- Department of Internal Medicine, Center for Global Health, University of New Mexico Health Sciences Center, Albuquerque, New Mexico, USA
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15
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Kang H, Ryoo N. Identification of Staphylococcus pettenkoferi Isolated from Blood Culture. ANNALS OF CLINICAL MICROBIOLOGY 2019. [DOI: 10.5145/acm.2019.22.3.77] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Hyein Kang
- Department of Laboratory Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Namhee Ryoo
- Department of Laboratory Medicine, Keimyung University School of Medicine, Daegu, Korea
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Dutta TK, Chakraborty S, Das M, Mandakini R, Vanrahmlimphuii, Roychoudhury P, Ghorai S, Behera SK. Multidrug-resistant Staphylococcus pettenkoferi isolated from cat in India. Vet World 2018; 11:1380-1384. [PMID: 30532490 PMCID: PMC6247871 DOI: 10.14202/vetworld.2018.1380-1384] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Accepted: 08/21/2018] [Indexed: 11/16/2022] Open
Abstract
Background and Aim: Coagulase-negative staphylococci (CoNS) are considered to be one of the emerging pathogens in human and animals in recent times. Staphylococcus pettenkoferi, a novel pathogen under CoNS, is discovered in 2002 in humans with multiple clinical manifestations in various patients. To date, the pathogens have not yet been reported from any animals. The present study reported the first ever isolation, identification, and characterization of multidrug-resistant S. pettenkoferi from a cat with peritonitis in India. Materials and Methods: Peritoneal fluid was collected aseptically from 3 years old cat processed for bacteriological culture by standard techniques. Isolates were confirmed by BD Phoenix™ automated bacterial identification system and were subjected to plate and tube coagulase tests. All the isolates were tested for antimicrobial sensitivity profile by disc diffusion assay, extended-spectrum β-lactamase production by double disc diffusion assay, in vitro biofilm production ability by microtiter plate assay, and detection of virulence genes and mecA gene by polymerase chain reaction assay. Results: A total of five clonally expanded isolates of S. pettenkoferi were isolated from peritoneal fluid of the affected cat. All the isolates were resistant against 36 antimicrobial agents and were also methicillin-resistant staphylococci. Phenotypically, all the isolates were negative for biofilm production but were carrying multiple biofilm-producing genes (icaA, IS257, nuc, and mecA). Conclusion: Although S. pettenkoferi was previously reported once from animal (cat) environment, this is probably the first ever report of isolation of the organism directly from any animals. This is also probably the first report from any species in India.
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Affiliation(s)
- Tapan Kumar Dutta
- Department of Veterinary Microbiology, Central Agricultural University, Selesih, Aizawl - 796 014, Mizoram, India
| | - Satyaki Chakraborty
- Department of Veterinary Microbiology, Central Agricultural University, Selesih, Aizawl - 796 014, Mizoram, India
| | - Malay Das
- Department of Veterinary Public Health and Epidemiology, Central Agricultural University-Imphal, Selesih, Aizawl - 796 014, Mizoram, India
| | - Rajkumari Mandakini
- Department of Veterinary Microbiology, Central Agricultural University-Imphal, Jalukie, Nagaland-India
| | - Vanrahmlimphuii
- Department of Veterinary Microbiology, Central Agricultural University, Selesih, Aizawl - 796 014, Mizoram, India
| | - Parimal Roychoudhury
- Department of Veterinary Microbiology, Central Agricultural University, Selesih, Aizawl - 796 014, Mizoram, India
| | - Santanu Ghorai
- Department of Veterinary Medicine, Central Agricultural University-Imphal, Selesih, Aizawl - 796 014, Mizoram, India
| | - Suvendu Kumar Behera
- Department of Veterinary Medicine, Central Agricultural University-Imphal, Selesih, Aizawl - 796 014, Mizoram, India
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17
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Månsson E, Hellmark B, Stegger M, Skytt Andersen P, Sundqvist M, Söderquist B. Genomic relatedness of Staphylococcus pettenkoferi isolates of different origins. J Med Microbiol 2017; 66:601-608. [PMID: 28530888 PMCID: PMC5817227 DOI: 10.1099/jmm.0.000472] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Purpose The aim of the study was to characterize clinical and environmental Staphylococcus pettenkoferi isolates with regard to genomic diversity and antibiotic susceptibility pattern. Repetitive-sequence-based PCR and core genome phylogenetic analysis of whole-genome sequencing (WGS) data verified the presence of distinct clades comprising closely related S. pettenkoferi isolates from different geographical locations and origins. Methodology Phylogenetic relationships between 25 S. pettenkoferi isolates collected from blood cultures and intra-operative air sampling were determined by repetitive-sequence-based PCR typing and analysis of ~157 000 SNPs identified in the core genome after WGS. Antibiotic susceptibility testing and tests for biofilm production (microtitre plate assay) were performed. Results Repetitive-sequence-based PCR as well as WGS data demonstrated the close relatedness of clinically significant blood culture isolates to probable contaminants, as well as to environmental isolates. Antibiotic-susceptibility testing demonstrated a low level of antimicrobial resistance. The mecA gene was present in two cefoxitin-resistant isolates. No isolates were found to produce biofilm. Conclusion Close genomic relatedness of S. pettenkoferi isolates from different geographical locations and origins were found within clades, but with substantial genomic difference between the two major clades. The ecological niche of S. pettenkoferi remains unconfirmed, but the presence of S. pettenkoferi in the air of the operating field favours the suggestion of a role in skin flora. Identification of S. pettenkoferi in clinical samples should, in a majority of cases, most likely be regarded as a probable contamination, and its role as a possible pathogen in immunocompromised hosts remains to be clarified.
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Affiliation(s)
- Emeli Månsson
- Centre for Clinical Research, Hospital of Västmanland Västerås, SE-721 89 Västerås, Sweden.,School of Medical Sciences, Faculty of Medicine and Health, Örebro University, SE-701 82 Örebro, Sweden
| | - Bengt Hellmark
- Department of Laboratory Medicine, Faculty of Medicine and Health, Örebro University, SE-701 82 Örebro, Sweden
| | - Marc Stegger
- Statens Serum Institut, Artillerivej 5, 2300 Copenhagen S, Denmark
| | | | - Martin Sundqvist
- Department of Laboratory Medicine, Faculty of Medicine and Health, Örebro University, SE-701 82 Örebro, Sweden
| | - Bo Söderquist
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, SE-701 82 Örebro, Sweden
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Rossi CC, da Silva Dias I, Muniz IM, Lilenbaum W, Giambiagi-deMarval M. The oral microbiota of domestic cats harbors a wide variety of Staphylococcus species with zoonotic potential. Vet Microbiol 2017; 201:136-140. [DOI: 10.1016/j.vetmic.2017.01.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 01/23/2017] [Accepted: 01/24/2017] [Indexed: 12/16/2022]
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19
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Staphylococcus pettenkoferi bacteremia: A case report and review of the literature. CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY 2016; 26:319-22. [PMID: 26744589 PMCID: PMC4692301 DOI: 10.1155/2015/748154] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In 2002, the coagulase-negative staphylococci species Staphylococcus pettenkoferi was first described. In addition to an overview of the laboratory detection of uncommon coagulase-negative staphylococci, this report describes, to the author’s knowledge, the first case of S pettenkoferi bacteremia in Canada. Staphylococcus pettenkoferi is a relatively recently described coagulase-negative staphylococci species first described in 2002. Since then, nine additional cases of infection caused by this species have been reported in various countries around the world, including Germany, Belgium, France, South Korea, Italy, Brazil and Mexico. The present report describes a case of S pettenkoferi peripheral line-associated bacteremia. To our knowledge, the present report is the first description of human infection caused by S pettenkoferi in Canada. The present report also provides an overview of the laboratory detection of uncommon coagulase-negative staphylococci.
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Implementation of Matrix-Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry in Routine Clinical Laboratories Improves Identification of Coagulase-Negative Staphylococci and Reveals the Pathogenic Role of Staphylococcus lugdunensis. J Clin Microbiol 2015; 53:2030-6. [PMID: 25878345 DOI: 10.1128/jcm.00177-15] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2015] [Accepted: 04/08/2015] [Indexed: 12/25/2022] Open
Abstract
The use of matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) for staphylococcal identification is now considered routine in laboratories compared with the conventional phenotypical methods previously used. We verified its microbiological relevance for identifying the main species of coagulase-negative staphylococci (CoNS) by randomly selecting 50 isolates. From 1 January 2007 to 31 August 2008, 12,479 staphylococci were isolated with phenotypic methods, of which 4,594 were identified as Staphylococcus aureus and 7,885 were coagulase negative staphylococci. Using MALDI-TOF MS from 1 January 2011 to 31 August 2012, 14,913 staphylococci were identified, with 5,066 as S. aureus and 9,847 as CoNS. MALDI-TOF MS allowed the identification of approximately 85% of the CoNS strains, whereas only 14% of the CoNS strains were identified to the species level with phenotypic methods because they were often considered contaminants. Furthermore, the use of MALDI-TOF MS revealed the occurrence of recently characterized Staphylococcus species, such as S. pettenkoferi, S. condimenti, and S. piscifermentans. Microbiological relevance analysis further revealed that some species displayed a high rate of microbiological significance, i.e., 40% of the S. lugdunensis strains included in the analysis were associated with infection risk. This retrospective microbiological study confirms the role of MALDI-TOF MS in clinical settings for the identification of staphylococci with clinical consequences. The species distribution reveals the occurrence of the recently identified species S. pettenkoferi and putative virulent species, including S. lugdunensis.
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21
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Park S, Chung HS, Lee M. Clinical and microbiological characteristics of six Staphylococcus pettenkoferi isolates from blood samples. Ann Lab Med 2015; 35:250-3. [PMID: 25729730 PMCID: PMC4330178 DOI: 10.3343/alm.2015.35.2.250] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 08/19/2014] [Accepted: 12/01/2014] [Indexed: 11/19/2022] Open
Abstract
Coagulase-negative staphylococci (CoNS) are reported to be the leading cause of nosocomial bloodstream infections. Staphylococcus pettenkoferi is a novel member of CoNS that was first isolated from the human blood and bursitis wound in 2002. We have reported cases of 6 S. pettenkoferi strains isolated from blood specimens, including one pathogen and 5 contaminants and catheter colonizers. Brucker Biotyper (Brucker Daltonics, Bremen, Germany) and molecular typing with 16S rRNA gene sequencing confirmed the 6 isolates as S. pettenkoferi. The conventional phenotypic identification of these isolates is not reliable owing to their inconsistent biochemical characteristics. Five of the 6 isolates were found to be resistant to oxacillin, and all isolates showed susceptibility to vancomycin and linezolid. For accurate identification of this novel species, advanced methods by using Brucker Biotyper or molecular methods such as 16S rRNA gene sequencing are required.
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Affiliation(s)
- Sholhui Park
- Department of Laboratory Medicine, Ewha Womans University School of Medicine, Seoul, Korea
| | - Hae-Sun Chung
- Department of Laboratory Medicine, Ewha Womans University School of Medicine, Seoul, Korea
| | - Miae Lee
- Department of Laboratory Medicine, Ewha Womans University School of Medicine, Seoul, Korea
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22
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Adegoke AA, Okoh AI. Species diversity and antibiotic resistance properties of Staphylococcus of farm animal origin in Nkonkobe Municipality, South Africa. Folia Microbiol (Praha) 2014; 59:133-40. [PMID: 24002789 PMCID: PMC3936122 DOI: 10.1007/s12223-013-0275-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Accepted: 08/18/2013] [Indexed: 01/20/2023]
Abstract
The occurrence and antibiotic susceptibility profile of Staphylococcus isolates of healthy farm animal origin in Nkonkobe Municipality as well as the prevalence of putative antibiotic resistance genes were investigated using phenotypic and molecular methods. A total of 120 Staphylococcus isolates were isolated from 150 animal samples and consisted of Staphylococcus haemolyticus (30 %) and Staphylococcus aureus (23.3 %) from pig, Staphylococcus capitis (15 %) from goat, S. haemolyticus (5 %) and Staphylococcus xylosus (15 %) from cattle, and other staphylococci (11.7 %) from dead chicken and pigs. Besides this, the presence of these isolates was observed from the animal dung, showing that the organisms are shed to the environment. About 23.3 % of these isolates were coagulase-positive and 76.7 % were coagulase-negative Staphylococcus. Between 75 and 100 % of the isolates were resistant to penicillin G, tetracycline, sulfamethoxazole, and nalidixic acid; about 38 % were methicillin-resistant staphylococci, including 12.6 % methicillin-resistant S. aureus from pigs. In total, 12 % of all isolates were vancomycin resistant. Also, 12 % of the isolates were erythromycin resistant, while 40.2 % were resistant to ceftazidime. Only the genes mecA and mphC could be confirmed, whereas the genes vanA, vanB, ermA, ermB, and ermC could not be detected. The high phenotypic antibiotic resistance and the presence of some associated resistance genes is a potential threat to public health and suggest the animals to be important reservoirs of antibiotic resistance determinants in the environment.
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Affiliation(s)
- Anthony A Adegoke
- Applied and Environmental Microbiology Research Group (AEMREG), Department of Biochemistry and Microbiology, University of Fort Hare, Alice, 5700, South Africa,
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Identification and characterization of methicillin-resistant Staphylococcus aureus, Staphylococcus epidermidis, Staphylococcus haemolyticus and Staphylococcus pettenkoferi from a small animal clinic. Vet Microbiol 2013; 167:680-5. [PMID: 23992797 DOI: 10.1016/j.vetmic.2013.07.036] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 07/21/2013] [Accepted: 07/24/2013] [Indexed: 11/21/2022]
Abstract
The aim of this study was to isolate and characterize methicillin-resistant staphylococci (MRS) in a small animal clinic and to investigate their distribution and possible transmission. Swabs (n=72) were taken from hospitalized pets, the environment and employees of a small animal clinic and screened for the presence of MRS. The staphylococcal species was confirmed biochemically or by 16S rDNA sequencing. Susceptibility to antimicrobial agents was tested by broth dilution. The presence of mecA and other resistance genes was confirmed by PCR. Molecular typing of the isolates followed standard procedures. In total, 34 MRS belonging to the four species Staphylococcus aureus (n=5), Staphylococcus epidermidis (n=21), Staphylococcus haemolyticus (n=6) or Staphylococcus pettenkoferi (n=2) were isolated. All isolates were multidrug-resistant with resistance to at least three classes of antimicrobial agents. Among the five methicillin-resistant S. aureus (MRSA) isolates, four belonged to the clonal complex CC398; two of them were isolated from cats, the remaining two from pet cages. Overall, the MRS isolates differed in their characteristics, except for one S. epidermidis clone (n=9) isolated from hospitalized cats without clinical staphylococcal infections, pet cages, the clinic environment as well as from a healthy employee. This MRSE clone was resistant to 10 classes of antimicrobial agents, including aminocyclitols, β-lactams, fluoroquinolones, lincosamides, macrolides, phenicols, pleuromutilins, sulfonamides, tetracyclines and trimethoprim. These findings suggest a possible transmission of specific MRS isolates between animal patients, employees and the clinic environment.
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24
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Doualla Bija M, Namme Luma H, Abena Mbida P, Tchaleu Nguenkam C, Okalla Ebongue C. Cervical spondylodiscitis due to Staphylococcus equorum. Med Mal Infect 2013; 43:255-7. [PMID: 23849315 DOI: 10.1016/j.medmal.2013.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 04/11/2013] [Accepted: 05/22/2013] [Indexed: 10/26/2022]
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25
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Moon HW, Lee SH, Chung HS, Lee M, Lee K. Performance of the Vitek MS matrix-assisted laser desorption ionization time-of-flight mass spectrometry system for identification of Gram-positive cocci routinely isolated in clinical microbiology laboratories. J Med Microbiol 2013; 62:1301-1306. [PMID: 23764744 DOI: 10.1099/jmm.0.062950-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
We evaluated the performance of the Vitek MS for identification of Gram-positive cocci routinely isolated in clinical microbiology laboratories. With a total of 424 well-characterized isolates, the results of the Vitek MS were compared to those of conventional methods and 16S rRNA gene sequencing. The Vitek MS correctly identified 97.9 % of the isolates tested to species level. The Vitek MS correctly identified the species of 97.2 % of the staphylococci (95.9 % of coagulase-negative staphylococci), 97.8 % of the streptococci, and 100 % of the enterococci. For the identification of Gram-positive cocci isolates, the overall concordance rate between conventional identification and the Vitek MS was 94.5 %. The Vitek MS matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) system can be a reliable and rapid method for the identification of most relevant Gram-positive cocci. In addition, expanding the database of the Vitek MS, especially for coagulase-negative staphylococci, is needed to enhance the performance of the Vitek MS.
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Affiliation(s)
- Hee-Won Moon
- Department of Laboratory Medicine, Konkuk University School of Medicine, Seoul, Republic of Korea
| | - Sun Hwa Lee
- Neodin Medical Institute, Seoul, Republic of Korea
| | - Hae-Sun Chung
- Department of Laboratory Medicine, Ewha Womans University School of Medicine, Seoul, Republic of Korea
| | - Miae Lee
- Department of Laboratory Medicine, Ewha Womans University School of Medicine, Seoul, Republic of Korea
| | - Kyungwon Lee
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Republic of Korea
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Mihaila L, Defrance G, Levesque E, Ichai P, Garnier F, Derouin V, Decousser J, Doucet-Populaire F, Bourgeois-Nicolaos N. A dual outbreak of bloodstream infections with linezolid-resistant Staphylococcus epidermidis and Staphylococcus pettenkoferi in a liver Intensive Care Unit. Int J Antimicrob Agents 2012; 40:472-4. [DOI: 10.1016/j.ijantimicag.2012.06.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Revised: 06/14/2012] [Accepted: 06/15/2012] [Indexed: 10/28/2022]
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27
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A Fatal Bloodstream Infection by Staphylococcus pettenkoferi in an Intensive Care Unit Patient. Case Rep Crit Care 2011; 2011:612732. [PMID: 24826324 PMCID: PMC4010065 DOI: 10.1155/2011/612732] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Accepted: 10/13/2011] [Indexed: 11/17/2022] Open
Abstract
Coagulase negative staphylococci are increasingly recognized as leading pathogens in bacteremia, with incidence peaking in intensive care units. Interpretation of blood cultures that are positive for CoNS is often doubtful. We describe a fatal case of bacteremia by a newly recognized species of CoNS, Staphylococcus pettenkoferi, in an ICU patient.
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28
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d'Azevedo PA, Comin G, Cantarelli V. Characterization of a new coagulase-negative Staphylococcus species (Staphylococcus pettenkoferi) isolated from blood cultures from a hospitalized patient in Porto Alegre, Brazil. Rev Soc Bras Med Trop 2010; 43:331-2. [DOI: 10.1590/s0037-86822010000300023] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2010] [Accepted: 04/23/2010] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION: Staphylococcus pettenkoferi was originally isolated and described by Trülzsch et al (2002). In this study, we characterized two isolates of this newly described species. METHODS: Blood cultures were initially processed using the BacT/ALERT® device, and the isolates were initially characterized using the Vitek2 identification system. RESULTS: The initial characterization revealed slow-growing Gram-positive cocci that formed opaque colonies on sheep blood agar. Other phenotypic/genotypic tests were performed. CONCLUSIONS: We would like to emphasize that this new staphylococcus species is phenotypically similar to other CoNS, especially S. auricularis. This could potentially lead to misidentification of these uncommon species.
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Garza-González E, López D, Pezina C, Muruet W, Bocanegra-García V, Muñoz I, Ramírez C, LLaca-Díaz JM. Diversity of staphylococcal cassette chromosome mec structures in coagulase-negative staphylococci and relationship to drug resistance. J Med Microbiol 2009; 59:323-329. [PMID: 20007762 DOI: 10.1099/jmm.0.015800-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The objective of this study was to determine the distribution of staphylococcal cassette chromosome mec (SCCmec) elements in meticillin-resistant coagulase-negative staphylococci (MR-CoNS) isolated from a tertiary-care hospital in Mexico and to examine the relationship to drug resistance. Fifty selected MR-CoNS isolates collected from catheters (n=15), blood (n=15), bone (n=9), bronchial lavage (n=2) and urine (n=2) and one isolate each from an abscess, cerebrospinal fluid, eye, pleural effusion, synovial fluid, tracheal aspirate and wound secretion were examined. Susceptibility testing was performed by the broth microdilution method. SCCmec types were determined by multiplex PCR and PFGE was carried out as described previously for Staphylococcus aureus. Among the MR-CoNS strains studied, the most frequently isolated species were Staphylococcus epidermidis (n=26) and Staphylococcus haemolyticus (n=13). Staphylococcus cohnii (n=5), Staphylococcus hominis (n=3), Staphylococcus sciuri (n=1), Staphylococcus pasteuri (n=1) and the recently described species Staphylococcus pettenkoferi (n=1) were also identified. The most frequent MR-CoNS genotype identified was SCCmec type IVa in S. epidermidis isolates, which also showed a high diversity in their PFGE patterns. A clone was found that amplified both SCCmec III and V elements in five isolates examined. The single MR S. pettenkoferi isolate harboured SCCmec type IVd and the single MR S. pasteuri isolate harboured SCCmec type I. The carriage of SCCmec type III was associated with resistance or intermediate resistance to meropenem (P <0.05). These results confirm the high prevalence of S. epidermidis SCCmec IVa and the high genetic diversity among MR-CoNS strains. As far as is known, this is the first report describing the newly identified S. pettenkoferi possessing SCCmec IVd and S. pasteuri harbouring SCCmec type I. MR-CoNS harbouring SCCmec type III were found to be more resistant to meropenem.
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Affiliation(s)
- Elvira Garza-González
- Departamento de Microbiología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey Nuevo Leon 64460, Mexico
| | - Daniel López
- Departamento de Microbiología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey Nuevo Leon 64460, Mexico
| | - Cesar Pezina
- Departamento de Microbiología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey Nuevo Leon 64460, Mexico
| | - Walter Muruet
- Departamento de Microbiología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey Nuevo Leon 64460, Mexico
| | - Virgilio Bocanegra-García
- Departamento de Biología Molecular y Bioingeniería, UAM Reynosa Aztlán, Universidad Autónoma de Tamaulipas, Tamaulipas, Mexico
| | - Ivan Muñoz
- Departamento de Microbiología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey Nuevo Leon 64460, Mexico
| | - Camilo Ramírez
- Departamento de Microbiología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey Nuevo Leon 64460, Mexico
| | - Jorge M LLaca-Díaz
- Hospital Universitario Dr José Eleuterio González, Universidad Autónoma de Nuevo León, Monterrey Nuevo Leon 64460, Mexico
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30
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Song SH, Park JS, Kwon HR, Kim SH, Kim HB, Chang HE, Park KU, Song J, Kim EC. Human bloodstream infection caused by Staphylococcus pettenkoferi. J Med Microbiol 2009; 58:270-272. [PMID: 19141749 DOI: 10.1099/jmm.0.004697-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Staphylococcus pettenkoferi is a recently isolated human pathogen with only a few reported cases of infection. We report a case of bloodstream infection caused by S. pettenkoferi in a patient with pulmonary tuberculosis.
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Affiliation(s)
- Sang Hoon Song
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.,Department of Laboratory Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
| | - Jeong Su Park
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hye Rin Kwon
- Department of Laboratory Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
| | - Sung Han Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
| | - Hong Bin Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
| | - Ho Eun Chang
- Department of Laboratory Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
| | - Kyoung Un Park
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.,Department of Laboratory Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
| | - Junghan Song
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.,Department of Laboratory Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
| | - Eui Chong Kim
- Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
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31
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Stepán J, Pantůcek R, Doskar J. Molecular diagnostics of clinically important staphylococci. Folia Microbiol (Praha) 2008; 49:353-86. [PMID: 15530002 DOI: 10.1007/bf03354664] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Bacterial species of the genus Staphylococcus known as important human and animal pathogens are the cause of a number of severe infectious diseases. Apart from the major pathogen Staphylococcus aureus, other species until recently considered to be nonpathogenic may also be involved in serious infections. Rapid and accurate identification of the disease-causing agent is therefore prerequisite for disease control and epidemiological surveillance. Modern methods for identification and typing of bacterial species are based on genome analysis and have many advantages compared to phenotypic methods. The genotypic methods currently used in molecular diagnostics of staphylococcal species, particularly of S. aureus, are reviewed. Attention is also paid to new molecular methods with the highest discriminatory power. Efforts made to achieve interlaboratory reproducibility of diagnostic methods are presented.
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Affiliation(s)
- J Stepán
- Department of Genetics and Molecular Biology, Faculty of Science, Masaryk University, 611 37 Brno, Czechia
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32
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Tang YW, Han J, McCormac MA, Li H, Stratton CW. Staphylococcus pseudolugdunensis sp. nov., a pyrrolidonyl arylamidase/ornithine decarboxylase-positive bacterium isolated from blood cultures. Diagn Microbiol Infect Dis 2008; 60:351-9. [DOI: 10.1016/j.diagmicrobio.2007.11.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2007] [Revised: 11/09/2007] [Accepted: 11/16/2007] [Indexed: 12/01/2022]
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33
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Trülzsch K, Grabein B, Schumann P, Mellmann A, Antonenka U, Heesemann J, Becker K. Staphylococcus pettenkoferi sp. nov., a novel coagulase-negative staphylococcal species isolated from human clinical specimens. Int J Syst Evol Microbiol 2007; 57:1543-1548. [PMID: 17625191 DOI: 10.1099/ijs.0.64381-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Five coagulase-negative, novobiocin-susceptible staphylococcal strains were isolated from human blood cultures in different German and Belgian medical facilities. A novel species, ‘Staphylococcus pettenkoferi’ was proposed recently to accommodate two of these strains (B3117T and A6664), although the name was not validly published. All five strains belonged to the genus Staphylococcus because they were non-motile, Gram-positive, catalase-positive cocci with peptidoglycan type (A3α type l-lys–gly2–4–l-Ser–Gly), menaquinone pattern (MK-7, MK-6 and MK-8) and major cellular fatty acids (ai-C15 : 0, ai-C17 : 0 and i-C15 : 0) that corresponded to those of staphylococci. Phenotypically, the isolates most closely resembled Staphylococcus capitis subsp. capitis and Staphylococcus auricularis, but they could be distinguished from these species by physiological tests and chemotaxonomic investigations. The results of DNA–DNA hybridization, chemotaxonomic investigations and 16S rRNA gene and RNA polymerase B gene (rpoB) sequence analysis enabled strains B3117T, K6999, 229 and 230 to be differentiated genotypically and phenotypically from known Staphylococcus species, indicating that these isolates are representatives of a novel species. The name Staphylococcus pettenkoferi sp. nov. is proposed for this novel species, with strain B3117T (=CIP 107711T=CCUG 51270T) as the type strain. Due to differences in the results of physiological and chemotaxonomic investigations and DNA–DNA hybridization data, strain A6664 was not included in the description of the novel species.
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MESH Headings
- Anti-Bacterial Agents/pharmacology
- Bacteremia/microbiology
- Bacterial Typing Techniques
- Belgium
- Cluster Analysis
- Coagulase/analysis
- DNA, Bacterial/chemistry
- DNA, Bacterial/genetics
- DNA, Ribosomal/chemistry
- DNA, Ribosomal/genetics
- DNA-Directed RNA Polymerases/genetics
- Fatty Acids/analysis
- Genes, rRNA
- Genotype
- Germany
- Humans
- Locomotion
- Microbial Sensitivity Tests
- Molecular Sequence Data
- Novobiocin/pharmacology
- Nucleic Acid Hybridization
- Peptidoglycan/analysis
- Phylogeny
- RNA, Bacterial/genetics
- RNA, Ribosomal, 16S/genetics
- Ribotyping
- Sequence Analysis, DNA
- Sequence Homology, Nucleic Acid
- Staphylococcal Infections/microbiology
- Staphylococcus/chemistry
- Staphylococcus/classification
- Staphylococcus/isolation & purification
- Staphylococcus/physiology
- Vitamin K 2
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Affiliation(s)
- Konrad Trülzsch
- Max von Pettenkofer Institute for Hygiene and Medical Microbiology, University of Munich, Munich, Germany
| | - Béatrice Grabein
- Max von Pettenkofer Institute for Hygiene and Medical Microbiology, University of Munich, Munich, Germany
| | - Peter Schumann
- DSMZ - German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
| | - Alexander Mellmann
- Institute of Hygiene, University of Münster, Hospital and Clinics, Münster, Germany
| | - Uladzimir Antonenka
- Max von Pettenkofer Institute for Hygiene and Medical Microbiology, University of Munich, Munich, Germany
| | - Jürgen Heesemann
- Max von Pettenkofer Institute for Hygiene and Medical Microbiology, University of Munich, Munich, Germany
| | - Karsten Becker
- Institute of Medical Microbiology, University of Münster, Hospital and Clinics, Münster, Germany
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Loïez C, Wallet F, Pischedda P, Renaux E, Senneville E, Mehdi N, Courcol RJ. First case of osteomyelitis caused by "Staphylococcus pettenkoferi". J Clin Microbiol 2007; 45:1069-71. [PMID: 17202276 PMCID: PMC1829132 DOI: 10.1128/jcm.02328-06] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
"Staphylococcus pettenkoferi" (proposed name) was identified as an unusual agent of osteomyelitis in a diabetic foot infection. The phenotypical tests used failed to give a good identification. Molecular 16S rRNA gene and rpoB sequencing allowed us to correctly identify this new species of coagulase-negative staphylococcus responsible for this chronic infection.
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Affiliation(s)
- Caroline Loïez
- Laboratoire de Bactériologie-Hygiène, Hôpital A. Calmette, F-59037 Lille Cedex, France.
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35
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Chemical composition and antimicrobial activity of essential oil ofAsarum caulescene. ACTA ACUST UNITED AC 2006. [DOI: 10.1007/bf02836693] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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36
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Mellmann A, Becker K, von Eiff C, Keckevoet U, Schumann P, Harmsen D. Sequencing and staphylococci identification. Emerg Infect Dis 2006; 12:333-6. [PMID: 16494767 PMCID: PMC3373113 DOI: 10.3201/eid1202.050962] [Citation(s) in RCA: 141] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The emerging clinical importance of staphylococcal infections prompted us to establish a reference database for partial RNA polymerase B (rpoB; nucleotides 1444-1928) gene sequences from type strains of all staphylococcal species and subspecies. This database correctly identified 55 clinical staphylococcal isolates; all were correctly identified at the species level. At the subspecies level, rpoB misidentified only 2 isolates.
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Affiliation(s)
| | | | | | | | - Peter Schumann
- Deutsche Sammlung von Mikroorganismen und Zellkulturen, Braunschweig, Germany
| | - Dag Harmsen
- University Hospital Münster, Münster, Germany
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37
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Pantůček R, Sedláček I, Petráš P, Koukalová D, Švec P, Štětina V, Vancanneyt M, Chrastinová L, Vokurková J, Růžičková V, Doškař J, Swings J, Hájek V. Staphylococcus simiae sp. nov., isolated from South American squirrel monkeys. Int J Syst Evol Microbiol 2005; 55:1953-1958. [PMID: 16166694 DOI: 10.1099/ijs.0.63590-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Eight coagulase-negative, oxidase-negative and novobiocin-susceptible staphylococcal strains were isolated from the gastrointestinal tracts of South American squirrel monkeys (Saimiri sciureus L.). These strains were differentiated from known staphylococcal species on the basis of 16S rRNA gene and hsp60 gene sequencing, and from the most closely related species by using DNA–DNA hybridization, ribotyping, whole-cell protein profiles and biotyping. Phylogenetic analysis based on 16S rRNA gene sequences confirmed that these strains are members of the Staphylococcus aureus species group (99 % similarity) but are biochemically similar to Staphylococcus piscifermentans, from which they can be phenotypically distinguished by resistance to polymyxin B, acid production from d-mannitol, the inability to hydrolyse aesculin and DNA and the absence of α-glucosidase. On the basis of these analyses, a novel species of the genus Staphylococcus is described, for which the name Staphylococcus simiae sp. nov. is proposed, with CCM 7213T (=LMG 22723T) as the type strain.
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Affiliation(s)
- Roman Pantůček
- Department of Genetics and Molecular Biology, Faculty of Science, Masaryk University Brno, Kotlářská 2, 611 37 Brno, Czech Republic
| | - Ivo Sedláček
- Czech Collection of Microorganisms, Faculty of Science, Masaryk University Brno, Tvrdého 14, 602 00 Brno, Czech Republic
| | - Petr Petráš
- Reference Laboratory for Staphylococci, National Institute of Public Health, Šrobárova 48, 100 42 Prague, Czech Republic
| | - Dagmar Koukalová
- Institute of Microbiology, Faculty of Medicine, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic
| | - Pavel Švec
- Czech Collection of Microorganisms, Faculty of Science, Masaryk University Brno, Tvrdého 14, 602 00 Brno, Czech Republic
| | - Vlastimil Štětina
- Czech Collection of Microorganisms, Faculty of Science, Masaryk University Brno, Tvrdého 14, 602 00 Brno, Czech Republic
| | - Marc Vancanneyt
- BCCM/LMG Bacteria Collection, Ghent University, K. L. Ledeganckstraat 35, B-9000 Ghent, Belgium
| | | | | | - Vladislava Růžičková
- Department of Genetics and Molecular Biology, Faculty of Science, Masaryk University Brno, Kotlářská 2, 611 37 Brno, Czech Republic
| | - Jiří Doškař
- Department of Genetics and Molecular Biology, Faculty of Science, Masaryk University Brno, Kotlářská 2, 611 37 Brno, Czech Republic
| | - Jean Swings
- BCCM/LMG Bacteria Collection, Ghent University, K. L. Ledeganckstraat 35, B-9000 Ghent, Belgium
| | - Václav Hájek
- Institute of Microbiology, Faculty of Medicine, Palacký University, Hněvotínská 3, 775 15 Olomouc, Czech Republic
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38
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Cunha MDLRS, Sinzato YK, Silveira LVA. Comparison of methods for the identification of coagulase-negative staphylococci. Mem Inst Oswaldo Cruz 2005; 99:855-60. [PMID: 15761602 DOI: 10.1590/s0074-02762004000800012] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Coagulase-negative staphylococci (CNS) species identification is still difficult for most clinical laboratories. The scheme proposed by Kloos and Schleifer and modified by Bannerman is the reference method used for the identification of staphylococcal species and subspecies; however, this method is relatively laborious for routine use since it requires the utilization of a large number of biochemical tests. The objective of the present study was to compare four methods, i.e., the reference method, the API Staph system (bioMérieux) and two methods modified from the reference method in our laboratory (simplified method and disk method), in the identification of 100 CNS strains. Compared to the reference method, the simplified method and disk method correctly identified 100 and 99% of the CNS species, respectively, while this rate was 84% for the API Staph system. Inaccurate identification by the API Staph method was observed for Staphylococcus epidermidis (2.2%), S. hominis (25%), S. haemolyticus (37.5%), and S. warneri (47.1%). The simplified method using the simple identification scheme proposed in the present study was found to be efficient for all strains tested, with 100% sensitivity and specificity and proved to be available alternative for the identification of staphylococci, offering, higher reliability and lower cost than the currently available commercial systems. This method would be very useful in clinical microbiology laboratory, especially in places with limited resources.
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Affiliation(s)
- Maria de Lourdes R S Cunha
- Departamento de Microbiologia e Imunologia, Instituto de Biociéncias, Universidade Estadual Paulista, 18618-000 Botucatu, SP, Brazil.
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39
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Carretto E, Barbarini D, Couto I, De Vitis D, Marone P, Verhoef J, De Lencastre H, Brisse S. Identification of coagulase-negative staphylococci other than Staphylococcus epidermidis by automated ribotyping. Clin Microbiol Infect 2005; 11:177-84. [PMID: 15715714 DOI: 10.1111/j.1469-0691.2004.01052.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
As routine identification of coagulase-negative staphylococci is problematic, the performance of automated ribotyping was evaluated for identification of coagulase-negative staphylococci other than Staphylococcus epidermidis. In total, 177 isolates were tested, comprising 149 isolates from blood samples, 15 isolates that were not identified by internal transcribed spacer (ITS)-PCR in a previous study, and 13 reference strains. The identification results were compared with those obtained by the API 20 Staph system, with standard phenotypic and molecular methods as reference. Most (n = 166; 93.8%) isolates were identified correctly by automated ribotyping. For 61 isolates, API 20 Staph and ribotyping were in agreement, but for 105 isolates, ribotyping provided correct identification and API 20 Staph did not. Four isolates not identified by automated ribotyping were recognised correctly by API 20 Staph. The remaining seven isolates could not be identified by either of the two methods. Automated ribotyping was able to distinguish Staphylococcus capitis reliably from Staphylococcus caprae. The results demonstrate the value of automated ribotyping for identification of coagulase-negative Staphylococcus (CoNS) isolates from human sources and may help to clarify the clinical relevance of CoNS species. In addition, automated ribotyping was able to detect polymorphisms that may be useful for epidemiological purposes within S. capitis, Staphylococcus hominis, Staphylococcus haemolyticus, Staphylococcus simulans, S. caprae, Staphylococcus warneri, Staphylococcus lugdunensis, Staphylococcus schleiferi, Staphylococcus sciuri, Staphylococcus pasteuri and Staphylococcus xylosus.
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Affiliation(s)
- E Carretto
- Laboratori Sperimentali di Ricerca, Area Infettivologica, IRCCS Policlinico San Matteo, 27100 Pavia, Italy.
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40
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Becker K, Harmsen D, Mellmann A, Meier C, Schumann P, Peters G, von Eiff C. Development and evaluation of a quality-controlled ribosomal sequence database for 16S ribosomal DNA-based identification of Staphylococcus species. J Clin Microbiol 2005; 42:4988-95. [PMID: 15528685 PMCID: PMC525259 DOI: 10.1128/jcm.42.11.4988-4995.2004] [Citation(s) in RCA: 169] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
To establish an improved ribosomal gene sequence database as part of the Ribosomal Differentiation of Microorganisms (RIDOM) project and to overcome the drawbacks of phenotypic identification systems and publicly accessible sequence databases, both strands of the 5' end of the 16S ribosomal DNA (rDNA) of 81 type and reference strains comprising all validly described staphylococcal (sub)species were sequenced. Assuming a normal distribution for pairwise distances of all unique staphylococcal sequences and choosing a reporting criterion of > or =98.7% similarity for a "distinct species," a statistical error probability of 1.0% was calculated. To evaluate this database, a 16S rDNA fragment (corresponding to Escherichia coli positions 54 to 510) of 55 clinical Staphylococcus isolates (including those of the small-colony variant phenotype) were sequenced and analyzed by the RIDOM approach. Of these isolates, 54 (98.2%) had a similarity score above the proposed threshold using RIDOM; 48 (87.3%) of the sequences gave a perfect match, whereas 83.6% were found by searching National Center for Biotechnology Information (NCBI) database entries. In contrast to RIDOM, which showed four ambiguities at the species level (mainly concerning Staphylococcus intermedius versus Staphylococcus delphini), the NCBI database search yielded 18 taxon-related ambiguities and showed numerous matches exhibiting redundant or unspecified entries. Comparing molecular results with those of biochemical procedures, ID 32 Staph (bioMerieux, Marcy I'Etoile, France) and VITEK 2 (bioMerieux) failed to identify 13 (23.6%) and 19 (34.5%) isolates, respectively, due to incorrect identification and/or categorization below acceptable values. In contrast to phenotypic methods and the NCBI database, the novel high-quality RIDOM sequence database provides excellent identification of staphylococci, including rarely isolated species and phenotypic variants.
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Affiliation(s)
- Karsten Becker
- Institute of Medical Microbiology, University of Münster, D-48149 Münster, Germany.
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41
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Blaiotta G, Pennacchia C, Parente E, Villani F. Design and evaluation of specific PCR primers for rapid and reliable identification of Staphylococcus xylosus strains isolated from dry fermented sausages. Syst Appl Microbiol 2004; 26:601-10. [PMID: 14666989 DOI: 10.1078/072320203770865918] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Rapid and reliable identification of Staphylococcus xylosus was achieved by species-specific PCR assays. Two sets of primers, targeting on xylulokinase (xylB) and 60 kDa heat-shock protein (hsp60) genes of S. xylosus, respectively, were designed. Species-specificity of both sets of primers was evaluated by using 27 reference strains of the DSM collection, representing 23 different species of the Staphylococcus genus and 3 species of the Kocuria genus. Moreover, 90 wild strains isolated from different fermented dry sausages were included in the analysis. By using primers xylB-F and xylB-R the expected PCR fragment was obtained only when DNA from S. xylosus was used. By contrast, amplification performed by using primers xylHs-F and xylHs-R produced a single PCR fragment, of the expected length, when DNA from S. xylosus, S. haemolyticus, S. intermedius and S. kloosii were used as template. Nevertheless, AluI digestion of the xylHs-F/xylHs-R PCR fragment allowed a clear differentiation of these 4 species. The rapidity (about 4 h from DNA isolation to results) and reliability of the PCR procedures established suggests that the method may be profitably applied for specific detection and identification of S. xylosus strains.
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Affiliation(s)
- Giuseppe Blaiotta
- Dipartimento di Scienza degli Alimenti, Sezione di Microbiologia Agraria, Alimentare, Ambientale e di Igiene, Stazione di Microbiologia Industriale, Università degli Studi di Napoli "Federico II", Portici, Italy
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42
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Blaiotta G, Pennacchia C, Ercolini D, Moschetti G, Villani F. Combining Denaturing Gradient Gel Electrophoresis of 16S rDNA V3 Region and 16S–23S rDNA Spacer Region Polymorphism Analyses for the Identification of Staphylococci from Italian Fermented Sausages. Syst Appl Microbiol 2003; 26:423-33. [PMID: 14529185 DOI: 10.1078/072320203322497455] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Separation of amplified V3 region from 16S rDNA by denaturing gradient gel electrophoresis (PCR-DGGE) and 16S-23S rDNA intergenic spacer region polymorphism (ISR-PCR) analyses were tested as tool for differentiation of staphylococcal strains commonly isolated from fermented sausages. Variable V3 regions of 25 staphylococcal reference strains and 96 wild strains of species belonging to the genera Staphylococcus, Micrococcus and Kocuria were analyzed. PCR-DGGE profiles obtained were species-specific for S. sciuri, S. haemolyticus, S. hominis, S. auricularis, S. condimenti, S. kloosi, S. vitulus, S. succinus, S. pasteuri, S. capitis and S. (Macrococcus) caseolyticus. Moreover, 7 groups could be distinguished gathering the remaining species as result of the separation of the V3 rDNA amplicons in DGGE. Furthermore, the combination of the results obtained by PCR-DGGE and ISR-PCR analyses allowed a clear differentiation of all the staphylococcal species analysed, with exception of the pairs S. equorum-S. cohnii and S. carnosus-S. schleiferi. The suitability of both molecular techniques and of the combination their results for the identification of staphylococci was validated analysing partial nucleotide sequence of the 16S rDNA of a representative number of wild strains.
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Affiliation(s)
- Giuseppe Blaiotta
- Dipartimento di Scienza degli Alimenti, Sezione di Microbiologia Agraria, Alimentare, Ambientale e di Igiene, Stazione di Microbiologia Industriale, Università degli Studi di Napoli Federico II, Portici, Italy
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43
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von Eiff C, Peters G, Heilmann C. Pathogenesis of infections due to coagulase-negative staphylococci. THE LANCET. INFECTIOUS DISEASES 2002; 2:677-85. [PMID: 12409048 DOI: 10.1016/s1473-3099(02)00438-3] [Citation(s) in RCA: 531] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
As a group, the coagulase-negative staphylococci (CoNS) are among the most frequently isolated bacteria in the clinical microbiology laboratory and are becoming increasingly important, especially as causes of hospital-acquired infections. These bacteria are normal inhabitants of human skin and mucous membranes and, therefore, one of the major challenges of daily diagnostic work is to distinguish clinically significant CoNS from contaminant strains. This overview addresses current knowledge of the pathogenesis of infections due to CoNS and particularly focuses on virulence factors of the species Staphylococcus epidermidis. S epidermidis has been identified as a major cause of nosocomial infections, especially in patients with predisposing factors such as indwelling or implanted foreign polymer bodies. Most important in the pathogenesis of foreign-body-associated infections is the ability of these bacteria to colonise the polymer surface by the formation of a thick, multilayered biofilm. Biofilm formation takes place in two phases. The first phase involves the attachment of the bacteria to polymer surfaces that may be either unmodified or coated with host extracellular matrix proteins. In the second phase, the bacteria proliferate and accumulate into multilayered cell clusters that are embedded in an extracellular material. The bacterial factors involved in both phases of biofilm formation are discussed in this review. In addition, the most important aspects of the pathogenic potential of S saprophyticus, S lugdunensis, and S schleiferi are described, although, compared with S epidermidis, much less is known in these species concerning their virulence factors.
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Affiliation(s)
- Christof von Eiff
- Institute of Medical Microbiology, University of Münster Hospital and Clinics, Münster, Germany.
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