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Dos Santos PAS, Rodrigues YC, Marcon DJ, Lobato ARF, Cazuza TB, Gouveia MIM, Silva MJA, Souza AB, Lima LNGC, Quaresma AJPG, Brasiliense DM, Lima KVB. Endemic High-Risk Clone ST277 Is Related to the Spread of SPM-1-Producing Pseudomonas aeruginosa during the COVID-19 Pandemic Period in Northern Brazil. Microorganisms 2023; 11:2069. [PMID: 37630629 PMCID: PMC10457858 DOI: 10.3390/microorganisms11082069] [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: 06/13/2023] [Revised: 07/20/2023] [Accepted: 07/20/2023] [Indexed: 08/27/2023] Open
Abstract
Pseudomonas aeruginosa is a high-priority bacterial agent that causes healthcare-acquired infections (HAIs), which often leads to serious infections and poor prognosis in vulnerable patients. Its increasing resistance to antimicrobials, associated with SPM production, is a case of public health concern. Therefore, this study aims to determine the antimicrobial resistance, virulence, and genotyping features of P. aeruginosa strains producing SPM-1 in the Northern region of Brazil. To determine the presence of virulence and resistance genes, the PCR technique was used. For the susceptibility profile of antimicrobials, the Kirby-Bauer disk diffusion method was performed on Mueller-Hinton agar. The MLST technique was used to define the ST of the isolates. The exoS+/exoU- virulotype was standard for all strains, with the aprA, lasA, toxA, exoS, exoT, and exoY genes as the most prevalent. All the isolates showed an MDR or XDR profile against the six classes of antimicrobials tested. HRC ST277 played a major role in spreading the SPM-1-producing P. aeruginosa strains.
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Affiliation(s)
- Pabllo Antonny Silva Dos Santos
- Program in Parasitic Biology in the Amazon Region (PPGBPA), State University of Pará (UEPA), Tv. Perebebuí, 2623-Marco, Belém 66087-662, PA, Brazil; (P.A.S.D.S.); (D.J.M.); (L.N.G.C.L.); (D.M.B.)
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
| | - Yan Corrêa Rodrigues
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
- Program in Epidemiology and Health Surveillance (PPGEVS), Evandro Chagas Institute (IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil
- Department of Natural Science, State University of Pará (DCNA/UEPA), Belém 66050-540, PA, Brazil
| | - Davi Josué Marcon
- Program in Parasitic Biology in the Amazon Region (PPGBPA), State University of Pará (UEPA), Tv. Perebebuí, 2623-Marco, Belém 66087-662, PA, Brazil; (P.A.S.D.S.); (D.J.M.); (L.N.G.C.L.); (D.M.B.)
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
| | - Amália Raiana Fonseca Lobato
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
| | - Thalyta Braga Cazuza
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
| | - Maria Isabel Montoril Gouveia
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
| | - Marcos Jessé Abrahão Silva
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
- Program in Epidemiology and Health Surveillance (PPGEVS), Evandro Chagas Institute (IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | - Alex Brito Souza
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
| | - Luana Nepomuceno Gondim Costa Lima
- Program in Parasitic Biology in the Amazon Region (PPGBPA), State University of Pará (UEPA), Tv. Perebebuí, 2623-Marco, Belém 66087-662, PA, Brazil; (P.A.S.D.S.); (D.J.M.); (L.N.G.C.L.); (D.M.B.)
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
- Program in Epidemiology and Health Surveillance (PPGEVS), Evandro Chagas Institute (IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | - Ana Judith Pires Garcia Quaresma
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
| | - Danielle Murici Brasiliense
- Program in Parasitic Biology in the Amazon Region (PPGBPA), State University of Pará (UEPA), Tv. Perebebuí, 2623-Marco, Belém 66087-662, PA, Brazil; (P.A.S.D.S.); (D.J.M.); (L.N.G.C.L.); (D.M.B.)
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
- Program in Epidemiology and Health Surveillance (PPGEVS), Evandro Chagas Institute (IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil
| | - Karla Valéria Batista Lima
- Program in Parasitic Biology in the Amazon Region (PPGBPA), State University of Pará (UEPA), Tv. Perebebuí, 2623-Marco, Belém 66087-662, PA, Brazil; (P.A.S.D.S.); (D.J.M.); (L.N.G.C.L.); (D.M.B.)
- Bacteriology and Mycology Section, Evandro Chagas Institute (SABMI/IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil; (A.R.F.L.); (T.B.C.); (M.I.M.G.); (M.J.A.S.); (A.B.S.); (A.J.P.G.Q.)
- Program in Epidemiology and Health Surveillance (PPGEVS), Evandro Chagas Institute (IEC), Ministry of Health, Ananindeua 67030-000, PA, Brazil
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Picollo M, Ferraro DK, Pérez G, Reijtman V, Gomez S, Garcia ME, Mastroianni A, Rosanova MT. Pseudomonas putida bacteremia in pediatric patients: A case series study. ENFERMEDADES INFECCIOSAS Y MICROBIOLOGIA CLINICA (ENGLISH ED.) 2022; 41:221-224. [PMID: 35907772 DOI: 10.1016/j.eimce.2022.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 07/28/2021] [Accepted: 08/05/2021] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Bacteria of the genus Pseudomonas act as opportunistic pathogens. Pseudomonas putida has been considered a pathogen of low virulence and susceptible to multiple antibiotics, but in recent years resistant strains have emerged. The objective of this study is to describe the clinical characteristics, evolution and antibiotic resistance of P. putida bacteremia documented in pediatric hospitalized patients. METHODS Retrospective cases series. Pediatric patients admitted to the Prof. Dr. Juan P. Garrahan Hospital of Buenos Aires City, Argentina, with isolation in blood cultures of P. putida were included, between August 2015 and August 2020. RESULTS Sample consisting of 13 patients. Median age: 81 months (IQR 15-163). Ten of the patients were immunocompromised (77%), 11 (85%) had a central venous catheter, 2 (15%) received transfusions prior to the episode of bacteremia, and 6 (46%) had had an invasive procedure within the previous 30 days. Three patients (23%) presented bacteremia secondary to clinical focus and 10 (77%) had central venous catheter-associated bacteremia. All presented fever, 62% (8) evolved with sepsis and 15% (2) with septic shock. Two patients required admission to the intensive care unit (15%), and in 7 (54%) the central venous catheter was removed. None died. The median days of treatment was 14 (IQR 10-14). Resistance to carbapenems was 30%. CONCLUSION All children had underlying comorbidities, most of them immunocompromised. Catheter-associated infection predominated. The sensitivity to antibiotics was variable. Given the emergence of multi-resistant strains, it is essential to know the local epidemiology.
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Affiliation(s)
- Micaela Picollo
- Epidemiological Control and Infectious Disease Service, Hospital Nacional de Pediatría SAMIC Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina.
| | - Daiana Karina Ferraro
- Epidemiological Control and Infectious Disease Service, Hospital Nacional de Pediatría SAMIC Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina
| | - Guadalupe Pérez
- Epidemiological Control and Infectious Disease Service, Hospital Nacional de Pediatría SAMIC Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina
| | - Vanesa Reijtman
- Microbiology Laboratory, Hospital Nacional de Pediatría SAMIC Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina
| | - Sandra Gomez
- Epidemiological Control and Infectious Disease Service, Hospital Nacional de Pediatría SAMIC Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina
| | - Maria Eva Garcia
- Microbiology Laboratory, Hospital Nacional de Pediatría SAMIC Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina
| | - Alejandra Mastroianni
- Microbiology Laboratory, Hospital Nacional de Pediatría SAMIC Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina
| | - María Teresa Rosanova
- Epidemiological Control and Infectious Disease Service, Hospital Nacional de Pediatría SAMIC Prof. Dr. Juan P. Garrahan, Buenos Aires, Argentina
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Cabrera R, Fernández-Barat L, Vázquez N, Alcaraz-Serrano V, Bueno-Freire L, Amaro R, López-Aladid R, Oscanoa P, Muñoz L, Vila J, Torres A. OUP accepted manuscript. J Antimicrob Chemother 2022; 77:1600-1610. [PMID: 35323912 PMCID: PMC9155640 DOI: 10.1093/jac/dkac084] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 02/14/2022] [Indexed: 11/25/2022] Open
Abstract
Background Non-cystic fibrosis bronchiectasis (BE) is a chronic structural lung condition that facilitates chronic colonization by different microorganisms and courses with recurrent respiratory infections and frequent exacerbations. One of the main pathogens involved in BE is Pseudomonas aeruginosa. Objectives To determine the molecular mechanisms of resistance and the molecular epidemiology of P. aeruginosa strains isolated from patients with BE. Methods A total of 43 strains of P. aeruginosa were isolated from the sputum of BE patients. Susceptibility to the following antimicrobials was analysed: ciprofloxacin, meropenem, imipenem, amikacin, tobramycin, aztreonam, piperacillin/tazobactam, ceftazidime, ceftazidime/avibactam, ceftolozane/tazobactam, cefepime and colistin. The resistance mechanisms present in each strain were assessed by PCR, sequencing and quantitative RT–PCR. Molecular epidemiology was determined by MLST. Phylogenetic analysis was carried out using the eBURST algorithm. Results High levels of resistance to ciprofloxacin (44.19%) were found. Mutations in the gyrA, gyrB, parC and parE genes were detected in ciprofloxacin-resistant P. aeruginosa strains. The number of mutated QRDR genes was related to increased MIC. Different β-lactamases were detected: blaOXA50, blaGES-2, blaIMI-2 and blaGIM-1. The aac(3)-Ia, aac(3)-Ic, aac(6″)-Ib and ant(2″)-Ia genes were associated with aminoglycoside-resistant strains. The gene expression analysis showed overproduction of the MexAB-OprM efflux system (46.5%) over the other efflux system. The most frequently detected clones were ST619, ST676, ST532 and ST109. Conclusions Resistance to first-line antimicrobials recommended in BE guidelines could threaten the treatment of BE and the eradication of P. aeruginosa, contributing to chronic infection.
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Affiliation(s)
- Roberto Cabrera
- Hospital Clínic, Cellex Laboratory, CIBERES (Center for net Biomedical Research Respiratory diseases, 06/06/0028) - Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), School of Medicine, University of Barcelona, Spain
- Respiratory Intensive Care Unit, Pneumology Department, Hospital Clínic, Barcelona, Spain
| | - Laia Fernández-Barat
- Hospital Clínic, Cellex Laboratory, CIBERES (Center for net Biomedical Research Respiratory diseases, 06/06/0028) - Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), School of Medicine, University of Barcelona, Spain
- Respiratory Intensive Care Unit, Pneumology Department, Hospital Clínic, Barcelona, Spain
- Corresponding author. E-mail:
| | - Nil Vázquez
- Hospital Clínic, Cellex Laboratory, CIBERES (Center for net Biomedical Research Respiratory diseases, 06/06/0028) - Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), School of Medicine, University of Barcelona, Spain
- Respiratory Intensive Care Unit, Pneumology Department, Hospital Clínic, Barcelona, Spain
| | - Victoria Alcaraz-Serrano
- Hospital Clínic, Cellex Laboratory, CIBERES (Center for net Biomedical Research Respiratory diseases, 06/06/0028) - Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), School of Medicine, University of Barcelona, Spain
- Respiratory Intensive Care Unit, Pneumology Department, Hospital Clínic, Barcelona, Spain
| | - Leticia Bueno-Freire
- Hospital Clínic, Cellex Laboratory, CIBERES (Center for net Biomedical Research Respiratory diseases, 06/06/0028) - Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), School of Medicine, University of Barcelona, Spain
- Respiratory Intensive Care Unit, Pneumology Department, Hospital Clínic, Barcelona, Spain
| | - Rosanel Amaro
- Hospital Clínic, Cellex Laboratory, CIBERES (Center for net Biomedical Research Respiratory diseases, 06/06/0028) - Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), School of Medicine, University of Barcelona, Spain
- Respiratory Intensive Care Unit, Pneumology Department, Hospital Clínic, Barcelona, Spain
| | - Rubén López-Aladid
- Hospital Clínic, Cellex Laboratory, CIBERES (Center for net Biomedical Research Respiratory diseases, 06/06/0028) - Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), School of Medicine, University of Barcelona, Spain
- Respiratory Intensive Care Unit, Pneumology Department, Hospital Clínic, Barcelona, Spain
| | - Patricia Oscanoa
- Hospital Clínic, Cellex Laboratory, CIBERES (Center for net Biomedical Research Respiratory diseases, 06/06/0028) - Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), School of Medicine, University of Barcelona, Spain
- Respiratory Intensive Care Unit, Pneumology Department, Hospital Clínic, Barcelona, Spain
| | - Laura Muñoz
- Barcelona Global Health Institute, Department of Clinical Microbiology, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Jordi Vila
- Barcelona Global Health Institute, Department of Clinical Microbiology, Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Antoni Torres
- Hospital Clínic, Cellex Laboratory, CIBERES (Center for net Biomedical Research Respiratory diseases, 06/06/0028) - Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), School of Medicine, University of Barcelona, Spain
- Respiratory Intensive Care Unit, Pneumology Department, Hospital Clínic, Barcelona, Spain
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Picollo M, Ferraro DK, Pérez G, Reijtman V, Gomez S, Garcia ME, Mastroianni A, Rosanova MT. Bacteriemia por Pseudomonas putida en niños: serie de casos. Enferm Infecc Microbiol Clin 2021. [DOI: 10.1016/j.eimc.2021.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Govender R, Amoah ID, Adegoke AA, Singh G, Kumari S, Swalaha FM, Bux F, Stenström TA. Identification, antibiotic resistance, and virulence profiling of Aeromonas and Pseudomonas species from wastewater and surface water. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 193:294. [PMID: 33893564 DOI: 10.1007/s10661-021-09046-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 04/04/2021] [Indexed: 06/12/2023]
Abstract
Aquatic environments are hotspots for the spread of antibiotic-resistant bacteria and genes due to pollution caused mainly by anthropogenic activities. The aim of this study was to evaluate the impact of wastewater effluents, informal settlements, hospital, and veterinary clinic discharges on the occurrence, antibiotic resistance profile and virulence signatures of Aeromonas spp. and Pseudomonas spp. isolated from surface water and wastewater. High counts of Aeromonas spp. (2.5 (± 0.8) - 3.3 (± 0.4) log10 CFU mL-1) and Pseudomonas spp. (0.6 (± 1.0) - 1.8 (± 1.0) log10 CFU mL-1) were obtained. Polymerase chain reaction (PCR) and MALDI-TOF characterization identified four species of Aeromonas and five of Pseudomonas. The isolates displayed resistance to 3 or more antibiotics (71% of Aeromonas and 94% of Pseudomonas). Aeromonas spp. showed significant association with the antibiotic meropenem (χ2 = 3.993, P < 0.05). The virulence gene aer in Aeromonas was found to be positively associated with the antibiotic resistance gene blaOXA (χ2 = 6.657, P < 0.05) and the antibiotic ceftazidime (χ2 = 7.537, P < 0.05). Aeromonas recovered from both wastewater and surface water displayed high resistance to ampicillin and had higher multiple antibiotic resistance (MAR) indices close to the hospital. Pseudomonas isolates on the other hand exhibited low resistance to carbapenems but very high resistance to the third-generation cephalosporins and cefixime. The results showed that some of the Pseudomonas spp. and Aeromonas spp. isolates were extended-spectrum β-lactamase producing bacteria. In conclusion, the strong association between virulence genes and antibiotic resistance in the isolates shows the potential health risk to communities through direct and indirect exposure to the water.
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Affiliation(s)
- Reshme Govender
- Institute for Water and Wastewater Technology, Durban University of Technology, Kwa-Zulu Natal 4001, Durban, South Africa
| | - Isaac Dennis Amoah
- Institute for Water and Wastewater Technology, Durban University of Technology, Kwa-Zulu Natal 4001, Durban, South Africa
| | - Anthony Ayodeji Adegoke
- Institute for Water and Wastewater Technology, Durban University of Technology, Kwa-Zulu Natal 4001, Durban, South Africa
| | - Gulshan Singh
- Institute for Water and Wastewater Technology, Durban University of Technology, Kwa-Zulu Natal 4001, Durban, South Africa
| | - Sheena Kumari
- Institute for Water and Wastewater Technology, Durban University of Technology, Kwa-Zulu Natal 4001, Durban, South Africa.
| | - Feroz Mahomed Swalaha
- Institute for Water and Wastewater Technology, Durban University of Technology, Kwa-Zulu Natal 4001, Durban, South Africa
| | - Faizal Bux
- Institute for Water and Wastewater Technology, Durban University of Technology, Kwa-Zulu Natal 4001, Durban, South Africa
| | - Thor Axel Stenström
- Institute for Water and Wastewater Technology, Durban University of Technology, Kwa-Zulu Natal 4001, Durban, South Africa
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Nikoloudaki O, Lemos Junior WJF, Campanaro S, Di Cagno R, Gobbetti M. Role prediction of Gram-negative species in the resistome of raw cow's milk. Int J Food Microbiol 2021; 340:109045. [PMID: 33465548 DOI: 10.1016/j.ijfoodmicro.2021.109045] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 12/21/2020] [Accepted: 12/29/2020] [Indexed: 12/24/2022]
Abstract
Extended use of antibiotics in dairy farming for therapeutic and prophylactic reasons, but also the higher prevalence of antibiotic resistant bacteria (ARB) in the farm environment raised the concern of consuming raw cow's milk and its derived products. The aim of this study was to predict by shotgun metagenomic analyses the presence of antibiotic resistance genes (ARGs) mainly correlated with Gram-negative bacteria in antibiotic residue free raw cow's milk derived exclusively from healthy animal from South Tyrol (Northern Italy), chosen as a model system. Assessment of shotgun metagenomic data of reconstructed scaffolds, revealed the existence of Pseudomonas spp. as the most abundant Gram-negative species in the raw cow's milk samples bearing ARGs. Besides, ARGs also linked to lactic acid bacteria such as Lactococcus sp. and Lactobacillus sp. ARGs correlated to microbiome found in milk samples conferred resistance towards aminoglycoside-streptothricin, beta-lactamase, macrolide, tetracycline, carbapenem, cephalosporin, penam, peptide, penem, fluoroquinolone, chloramphenicol and elfamycin antibiotics. Further bioinformatic processing included de-novo reassembly of all metagenomic sequences from all milk samples in one, to reconstruct metagenome assembled genomes (MAGs), which were further used to investigate mobile genetic elements (MGE). Analyses of the reconstructed MAGs showed that, MAG 9 (Pseudomonas sp1.) contained the oriT gene (origin of transfer gene) needed for transferring virulent factors. Although the presence of Pseudomonas is common in raw cow's milk, pasteurization treatment reduces their survivability. Nevertheless, attention should be paid on Pseudomonas spp. due to their intrinsic resistance to antibiotics and their capability of transferring virulent factors to other bacteria.
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Affiliation(s)
- Olga Nikoloudaki
- Faculty of Science and Technology, Libera Università di Bolzano, Piazza Università 5, 39100 Bolzano, Italy.
| | - Wilson J F Lemos Junior
- Faculty of Science and Technology, Libera Università di Bolzano, Piazza Università 5, 39100 Bolzano, Italy.
| | - Stefano Campanaro
- Department of Biology, University of Padova, Via 8 Febbraio 1848, 2, 35122 Padova, Italy.
| | - Raffaella Di Cagno
- Faculty of Science and Technology, Libera Università di Bolzano, Piazza Università 5, 39100 Bolzano, Italy.
| | - Marco Gobbetti
- Faculty of Science and Technology, Libera Università di Bolzano, Piazza Università 5, 39100 Bolzano, Italy.
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Khosravi AD, Taee S, Dezfuli AA, Meghdadi H, Shafie F. Investigation of the prevalence of genes conferring resistance to carbapenems in Pseudomonas aeruginosa isolates from burn patients. Infect Drug Resist 2019; 12:1153-1159. [PMID: 31123412 PMCID: PMC6511252 DOI: 10.2147/idr.s197752] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Accepted: 02/26/2019] [Indexed: 12/03/2022] Open
Abstract
Background and aim: Currently, the rate of hospital-acquired infections due to drug-resistant Pseudomonas aeruginosa strains shows an increasing trend and remains one of the principal reasons for mortalilty in burn patients. This study aimed to investigate the prevalence of genes conferring resistance to carbapenems in P. aeruginosa isolates from burn patients. Methods: A total of 50 P. aeruginosa isolates were tested for antibiotic susceptibility and presence of multidrug-resistant (MDR) and extensively drug resistant (XDR) isolates, using phenotypic tests. Screening for genes conferring resistance to carbapenems was investigated by multiplex PCR method. Results: Susceptibility testing demonstrated the highest resistance against amikacin, ceftazidime (n=44/88% each), and gentamicin (84%), while colistin sulfate was the most effective antibiotic. The rate of MDR and XDR isolates was revealed as 50% and 40% respectively. We detected the following carbapenemase genes: blaNDM (32%), followed by blaOXA-48 (18%), and blaBIC-1 (14%). This study revealed a high antibiotic resistance in P. aeruginosa isolates with a total of 40% and 50% MDR and XDR isolates respectively, and 70% carbapenem resistance. The prevalence of carbapenem conferring genes tested among carbapenem-resistant isolates was demonstrated as 65.7%. Conclusion: Due to the prevalence of P. aeroginosa strains carrying blaOXA-48 and blaNDM genes in our hospital, more attention and implementation of effective control measures against nosocomial infection are recommended.
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Affiliation(s)
- Azar Dokht Khosravi
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Microbiology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Shahab Taee
- Department of Biology, Faculty of Basic Sciences, Yasouj Branch, Islamic Azad University, Yasouj, Iran
| | - Aram Asarehzadegan Dezfuli
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Hossein Meghdadi
- Department of Microbiology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Fatemeh Shafie
- Department of Microbiology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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Oteo J, Bou G, Chaves F, Oliver A. Métodos microbiológicos para la vigilancia del estado de portador de bacterias multirresistentes. Enferm Infecc Microbiol Clin 2017; 35:667-675. [DOI: 10.1016/j.eimc.2015.12.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 12/30/2015] [Indexed: 10/22/2022]
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Kittinger C, Lipp M, Baumert R, Folli B, Koraimann G, Toplitsch D, Liebmann A, Grisold AJ, Farnleitner AH, Kirschner A, Zarfel G. Antibiotic Resistance Patterns of Pseudomonas spp. Isolated from the River Danube. Front Microbiol 2016; 7:586. [PMID: 27199920 PMCID: PMC4853796 DOI: 10.3389/fmicb.2016.00586] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 04/11/2016] [Indexed: 01/22/2023] Open
Abstract
Spread and persistence of antibiotic resistance pose a severe threat to human health, yet there is still lack of knowledge about reservoirs of antibiotic resistant bacteria in the environment. We took the opportunity of the Joint Danube Survey 3 (JDS3), the world's biggest river research expedition of its kind in 2013, to analyse samples originating from different sampling points along the whole length of the river. Due to its high clinical relevance, we concentrated on the characterization of Pseudomonas spp. and evaluated the resistance profiles of Pseudomonas spp. which were isolated from eight sampling points. In total, 520 Pseudomonas isolates were found, 344 (66.0%) isolates were identified as Pseudomonas putida, and 141 (27.1%) as Pseudomonas fluorescens, all other Pseudomonas species were represented by less than five isolates, among those two P. aeruginosa isolates. Thirty seven percent (37%) of all isolated Pseudomonas species showed resistance to at least one out of 10 tested antibiotics. The most common resistance was against meropenem (30.4%/158 isolates) piperacillin/tazobactam (10.6%/55 isolates) and ceftazidime (4.2%/22 isolates). 16 isolates (3.1%/16 isolates) were multi-resistant. For each tested antibiotic at least one resistant isolate could be detected. Sampling points from the upper stretch of the River Danube showed more resistant isolates than downriver. Our results suggest that antibiotic resistance can be acquired by and persists even in Pseudomonas species that are normally not in direct contact with humans. A possible scenario is that these bacteria provide a reservoir of antibiotic resistance genes that can spread to related human pathogens by horizontal gene transfer.
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Affiliation(s)
- Clemens Kittinger
- Institute of Hygiene, Microbiology and Environmental Medicine, Medical University Graz Graz, Austria
| | - Michaela Lipp
- Institute of Hygiene, Microbiology and Environmental Medicine, Medical University Graz Graz, Austria
| | - Rita Baumert
- Institute of Hygiene, Microbiology and Environmental Medicine, Medical University Graz Graz, Austria
| | - Bettina Folli
- Institute of Hygiene, Microbiology and Environmental Medicine, Medical University Graz Graz, Austria
| | - Günther Koraimann
- Institute of Molecular Biosciences, University of Graz Graz, Austria
| | - Daniela Toplitsch
- Institute of Hygiene, Microbiology and Environmental Medicine, Medical University GrazGraz, Austria; Institute of Molecular Biosciences, University of GrazGraz, Austria
| | - Astrid Liebmann
- Institute of Hygiene, Microbiology and Environmental Medicine, Medical University GrazGraz, Austria; Institute of Molecular Biosciences, University of GrazGraz, Austria
| | - Andrea J Grisold
- Institute of Hygiene, Microbiology and Environmental Medicine, Medical University Graz Graz, Austria
| | - Andreas H Farnleitner
- Interuniversity Cooperation Centre for Water and HealthVienna, Austria; Research Group Environmental Microbiology and Molecular Ecology, Institute of Chemical Engineering, Vienna University of TechnologyVienna, Austria
| | - Alexander Kirschner
- Interuniversity Cooperation Centre for Water and HealthVienna, Austria; Institute for Hygiene and Applied Immunology, Medical University of ViennaVienna, Austria
| | - Gernot Zarfel
- Institute of Hygiene, Microbiology and Environmental Medicine, Medical University Graz Graz, Austria
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Isolation of VIM-2-producing Pseudomonas monteilii clinical strains disseminated in a tertiary hospital in northern Spain. Antimicrob Agents Chemother 2014; 59:1334-6. [PMID: 25421471 DOI: 10.1128/aac.04639-14] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We describe here the occurrence of blaVIM-2 in 10 carbapenem-resistant Pseudomonas monteilii strains isolated from different clinical samples from patients at the University Hospital Marqués de Valdecilla in northern Spain. All the blaVIM-2-harboring P. monteilii isolates possessed a class 1 integron, with the cassette array [intI1_blaVIM-2_aac(6')-Ib_qacEΔ1_sul1]. Our results show the emergence of VIM-2-producing multidrug-resistant species other than Pseudomonas aeruginosa or Pseudomonas putida in a Spanish hospital. P. monteilii, although sporadically isolated, should also be considered an important metallo-β-lactamase (MBL) reservoir.
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11
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Toval F, Guzmán-Marte A, Madriz V, Somogyi T, Rodríguez C, García F. Predominance of carbapenem-resistant Pseudomonas aeruginosa isolates carrying blaIMP and blaVIM metallo-β-lactamases in a major hospital in Costa Rica. J Med Microbiol 2014; 64:37-43. [PMID: 25355933 DOI: 10.1099/jmm.0.081802-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
This study aimed to assess the molecular basis of the resistance to carbapenems in clinical isolates of Pseudomonas aeruginosa recovered from a tertiary-level health facility in San José, Costa Rica. A total of 198 non-duplicated isolates were evaluated for their susceptibility to β-lactams, aminoglycosides and fluoroquinolones. The production of metallo-β-lactamases (MBLs), the presence of MBL encoding genes (blaIMP, blaVIM and blaGIM-1) and the occurrence of these genes within class 1 integrons were investigated. In addition, an ERIC2 PCR fingerprinting method was used to elucidate the distribution of the detected MBL genes within the strain collection. Of the 198 isolates tested, 125 (63.1 %) were categorized as carbapenem-resistant. The majority (88.8 %) of the carbapemen-resistant isolates also showed resistance to ceftazidime, cefepime, aztreonam, ticarcillin/clavulanic acid, amikacin, gentamicin, tobramycin, ciprofloxacin and gatifloxacin. Among the carbapenem-resistant isolates, 102 (81.6 %) showed MBL activity. Strikingly, both blaIMP and blaVIM genes were simultaneously detected in most (94.1 %) of the 102 MBL producers. Five carbapenem-resistant MBL producers were positive only for blaIMP genes. Almost 70 % of the isolates examined harboured the intI1 gene, accompanied by the sul1 and qacEΔ1 genes in 136 (99 %) and 122 (89 %) isolates, respectively. The majority (94.4 %) of the carbapenem-resistant isolates carried the intI1 gene, in contrast to 26 % of the carbapenem-susceptible isolates. Ninety-three out of 96 (96.9 %) isolates carrying both blaIMP and blaVIM genes also harboured the intI1, sul1 and qacEΔ1 genes. Gene cassettes from carbapenem-susceptible and MBL-negative carbapenem-resistant isolates encoded aminoglycoside-resistance enzymes (aadA2, aadA4 and aadA6) as well as orfD and qacF genes. RAPD analysis distributed 126 of the isolates in 29 clusters. Eighty of the 90 blaIMP (+) blaVIM (+) isolates were sorted into 16 different clusters, suggesting that the blaIMP and blaVIM genes detected were located within a genetic element capable of lateral transfer. Carbapenem-resistant MBL-positive isolates were recovered from almost all hospital wards and were over-represented in samples obtained from the surgical emergency and intensive care therapy units. Remarkably, three carbapenem-resistant isolates, exhibiting MBL activity and carrying both blaIMP and blaVIM genes, were recovered from outpatients. Sequence analysis of both bla genes in various isolates revealed that they correspond to the alleles blaIMP-18 and blaVIM-2. To our knowledge, this is the first report of the combination of two metallo-β-lactamases encoded by the blaIMP-18 and blaVIM-2 genes in P. aeruginosa.
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Affiliation(s)
- Francisco Toval
- Centro de Investigación en Enfermedades Tropicales, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica
| | - Anel Guzmán-Marte
- Centro de Investigación en Enfermedades Tropicales, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica
| | - Vivian Madriz
- Centro de Investigación en Enfermedades Tropicales, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica
| | - Teresita Somogyi
- Laboratorio Clínico, Hospital Mexico, San José, Costa Rica.,Centro de Investigación en Enfermedades Tropicales, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica
| | - César Rodríguez
- Centro de Investigación en Enfermedades Tropicales, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica
| | - Fernando García
- Centro de Investigación en Enfermedades Tropicales, Facultad de Microbiología, Universidad de Costa Rica, San José, Costa Rica
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Comparison of local features from two Spanish hospitals reveals common and specific traits at multiple levels of the molecular epidemiology of metallo-β-lactamase-producing Pseudomonas spp. Antimicrob Agents Chemother 2014; 58:2454-8. [PMID: 24492368 DOI: 10.1128/aac.02586-13] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Twenty-seven well-characterized metallo-β-lactamase (MBL)-producing Pseudomonas strains from two distantly located hospitals were analyzed. The results revealed specific features defining the multilevel epidemiology of strains from each hospital in terms of species, clonality, predominance of high-risk clones, composition/diversity of integrons, and linkages of Tn402-related structures. Therefore, despite the global trends driving the epidemiology of MBL-producing Pseudomonas spp., the presence of local features has to be considered in order to understand this threat and implement proper control strategies.
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13
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Al-Agamy MH, Shibl AM, Tawfik AF, Elkhizzi NA, Livermore DM. Extended-spectrum and metallo-beta-lactamases among ceftazidime-resistantPseudomonas aeruginosain Riyadh, Saudi Arabia. J Chemother 2013; 24:97-100. [DOI: 10.1179/1120009x12z.00000000015] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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14
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Ramírez DG, Nicola F, Zarate S, Relloso S, Smayevsky J, Arduino S. Emergence of Pseudomonas aeruginosa with KPC-type carbapenemase in a teaching hospital: an 8-year study. J Med Microbiol 2013; 62:1565-1570. [DOI: 10.1099/jmm.0.059923-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
An outbreak of Klebsiella pneumoniae carbapenamase (KPC)-producing K. pneumoniae occurred at our institution. Multiresistant Pseudomonas aeruginosa could have acquired this transmissible resistance mechanism, going unnoticed because its phenotypic detection in this species is difficult. We compared P. aeruginosa isolates obtained before and after the KPC-producing K. pneumoniae outbreak. No bla
KPC genes were detected in the isolates obtained before the outbreak, whereas 33/76 (43 %) of the isolates obtained after the outbreak harboured the bla
KPC gene. P. aeruginosa may thus become a reservoir of this transmissible resistance mechanism. It is very important to understand the epidemiology of these multiresistant isolates, in order to achieve early implementation of adequate control measures to contain and reduce their dissemination in the hospital environment.
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Affiliation(s)
- Dolores García Ramírez
- Laboratory of Bacteriology, Mycology and Parasitology, Center of Medical Education and Clinical Research ‘Norberto Quirno’ (CEMIC), Buenos Aires, Argentina
| | - Federico Nicola
- Laboratory of Bacteriology, Mycology and Parasitology, Center of Medical Education and Clinical Research ‘Norberto Quirno’ (CEMIC), Buenos Aires, Argentina
| | - Soledad Zarate
- Laboratory of Bacteriology, Mycology and Parasitology, Center of Medical Education and Clinical Research ‘Norberto Quirno’ (CEMIC), Buenos Aires, Argentina
| | - Silvia Relloso
- Laboratory of Bacteriology, Mycology and Parasitology, Center of Medical Education and Clinical Research ‘Norberto Quirno’ (CEMIC), Buenos Aires, Argentina
| | - Jorgelina Smayevsky
- Laboratory of Bacteriology, Mycology and Parasitology, Center of Medical Education and Clinical Research ‘Norberto Quirno’ (CEMIC), Buenos Aires, Argentina
| | - Sonia Arduino
- Laboratory of Bacteriology, Mycology and Parasitology, Center of Medical Education and Clinical Research ‘Norberto Quirno’ (CEMIC), Buenos Aires, Argentina
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15
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Hypermutable Pseudomonas aeruginosa in Cystic fibrosis patients from two Brazilian cities. J Clin Microbiol 2013; 51:927-30. [PMID: 23303495 DOI: 10.1128/jcm.02638-12] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Hypermutable (HPM) strains of Pseudomonas aeruginosa have been found at high frequencies in cystic fibrosis (CF) patients in Europe. We report the results of testing for HPM frequencies, mutator genotype, and antimicrobial resistance of P. aeruginosa strains from Brazilian CF patients. A modified disk diffusion technique was used to quantify antibiotic-resistant subpopulations of an isolate, and estimations of the frequency of mutation to rifampin resistance were determined for 705 isolates from 149 patients attending clinics in two Brazilian cities. Mutations in the mutS gene were detected by sequencing assays. We found 194 (27.5%) HPM isolates in samples from 99 (66.4%) patients. Thirty-five HPM isolates (18.0%) from 31 (31.3%) patients exhibited a high increased spontaneous mutation rate compared with controls, and eight isolates from six patients displayed a defective mutS gene. The dominant HPM population was associated with very low antibiotic resistance levels, while HPM subpopulations were generally more resistant to antimicrobials. A relatively high prevalence of HPM P. aeruginosa in CF patients was associated with surprisingly low antibiotic resistance levels, in contrast to some earlier studies.
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16
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[Molecular characterization of carbapenemases in Pseudomonas aeruginosa infection. Clinical study in three oncological patients]. Med Clin (Barc) 2011; 137:709-10. [PMID: 21514940 DOI: 10.1016/j.medcli.2011.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2011] [Revised: 02/23/2011] [Accepted: 02/24/2011] [Indexed: 11/22/2022]
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17
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Navarro F, Calvo J, Cantón R, Fernández-Cuenca F, Mirelis B. Detección fenotípica de mecanismos de resistencia en microorganismos gramnegativos. Enferm Infecc Microbiol Clin 2011; 29:524-34. [DOI: 10.1016/j.eimc.2011.03.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Accepted: 03/31/2011] [Indexed: 10/18/2022]
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18
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[Epidemic outbreak of Pseudomonas aeruginosa carbepenem-resistant producing metallo-beta-lactamase]. Rev Clin Esp 2011; 211:187-91. [PMID: 21429485 DOI: 10.1016/j.rce.2010.12.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2010] [Revised: 12/14/2010] [Accepted: 12/24/2010] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To describe the nosocomial outbreak of multiresistant Pseudomonas aeruginosa producing metallo-beta-lactamase (MBL) in Cartagena (Murcia, Spain). MATERIAL AND METHODS In May 2009, six consecutive isolations of multiresistant Pseudomonas aeruginosa were detected. These were characterized by their profile of resistance to imipenem and cephalosporins and sensibility to aztreonam, this suggesting the production of carbapenemases. The isolations were screened for MBL and a PCR for the detection of the VIM gene was performed. Secondary, all of the isolations having the same characteristics in the year 2009 were analyzed retrospectively in order to establish the possibility of an endemic infection. RESULTS The molecular typing of the isolates revealed two clones in Pulsed Field Gel Electrophoresis (PFGE), the most frequent (Type 1) being represented by 4 isolates. All of them came from patients who were in the Intensive Care Unit. All (100%) of the isolates of the outbreak were considered to be multiresistant. PCR confirmed the presence of the VIM gene related with the production of MBL in 100% of the isolates corresponding to pulsotype 1. CONCLUSIONS We detected the existence of an outbreak of carbapenem-resistant Pseudomonas aeruginosa producing metallo-beta-lactamase. Am evident therapeutic problem as well as a problem of nosocomial infection was considered. The isolation means should be maximized and routine controls performed for the presence of MBL given its elevated prevalence in our setting.
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