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Xu X, Fu H, Ouyang M, Du J, Zhang Y, Chen Y, Huang J, Zhou Z, Hu B, Yang G, Wen C. Description of a pathogenic strain of Aeromonas dhakensis isolated from Ancherythroculter nigrocauda in an inland region of China. Lett Appl Microbiol 2024; 77:ovae046. [PMID: 38719546 DOI: 10.1093/lambio/ovae046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 04/24/2024] [Accepted: 05/07/2024] [Indexed: 07/02/2024]
Abstract
Aeromonas dhakensis is reported as an emerging pathogenic species within the genus Aeromonas and is widely distributed in tropical coastal areas. This study provided a detailed description and characterization of a strain of A. dhakensis (202108B1) isolated from diseased Ancherythroculter nigrocauda in an inland region of China. Biochemical tests identified the isolate at the genus level, and the further molecular analysis of concatenated housekeeping gene sequences revealed that the strain belonged to the species A. dhakensis. The isolated A. dhakensis strain was resistant to five antibiotics, namely, penicillin, ampicillin, clindamycin, cephalexin, and imipenem, while it was susceptible to or showed intermediate resistance to most of the other 15 tested antibiotics. The isolated strain of A. dhakensis caused acute hemorrhagic septicemia and tissue damage in artificially infected A. nigrocauda, with a median lethal dose of 7.76 × 104 CFU/fish. The genome size of strain 202108B1 was 5 043 286 bp, including 1 chromosome and 4 plasmids. This is the first detailed report of the occurrence of infection caused by an A. dhakensis strain causing infection in an aquaculture system in inland China, providing important epidemiological data on this potential pathogenic species.
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Affiliation(s)
- Xiandong Xu
- College of Life Science, Education Ministry key Laboratory of Poyang Lake Environment and Resource Utilization, Nanchang University, Nanchang 330031, China
- Fisheries Research Institute of Jiangxi Province, Nanchang 330039, China
| | - Huiyun Fu
- Fisheries Research Institute of Jiangxi Province, Nanchang 330039, China
| | - Min Ouyang
- Fisheries Research Institute of Jiangxi Province, Nanchang 330039, China
| | - Jinhui Du
- Key Laboratory of Healthy Mariculture for the east china Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen 361021, China
| | - Yujie Zhang
- College of Life Science, Education Ministry key Laboratory of Poyang Lake Environment and Resource Utilization, Nanchang University, Nanchang 330031, China
| | - Yangyang Chen
- College of Life Science, Education Ministry key Laboratory of Poyang Lake Environment and Resource Utilization, Nanchang University, Nanchang 330031, China
| | - Jiangfeng Huang
- Fisheries Research Institute of Jiangxi Province, Nanchang 330039, China
| | - Zhiyong Zhou
- Fisheries Research Institute of Jiangxi Province, Nanchang 330039, China
| | - Baoqing Hu
- College of Life Science, Education Ministry key Laboratory of Poyang Lake Environment and Resource Utilization, Nanchang University, Nanchang 330031, China
| | - Gang Yang
- College of Life Science, Education Ministry key Laboratory of Poyang Lake Environment and Resource Utilization, Nanchang University, Nanchang 330031, China
| | - Chungen Wen
- College of Life Science, Education Ministry key Laboratory of Poyang Lake Environment and Resource Utilization, Nanchang University, Nanchang 330031, China
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Drk S, Puljko A, Dželalija M, Udiković-Kolić N. Characterization of Third Generation Cephalosporin- and Carbapenem-Resistant Aeromonas Isolates from Municipal and Hospital Wastewater. Antibiotics (Basel) 2023; 12:antibiotics12030513. [PMID: 36978380 PMCID: PMC10044312 DOI: 10.3390/antibiotics12030513] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/28/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Antibiotic resistance (AR) remains one of the greatest threats to global health, and Aeromonas species have the potential to spread AR in the aquatic environment. The spread of resistance to antibiotics important to human health, such as third-generation cephalosporins (3GCs) and carbapenems, is of great concern. We isolated and identified 15 cefotaxime (3GC)- and 51 carbapenem-resistant Aeromonas spp. from untreated hospital and treated municipal wastewater in January 2020. The most common species were Aeromonas caviae (58%), A. hydrophila (17%), A. media (11%), and A. veronii (11%). Almost all isolates exhibited a multidrug-resistant phenotype and harboured a diverse plasmidome, with the plasmid replicons ColE, IncU, and IncR being the most frequently detected. The most prevalent carbapenemase gene was the plasmid-associated blaKPC-2 and, for the first time, the blaVIM-2, blaOXA-48, and blaIMP-13 genes were identified in Aeromonas spp. Among the 3GC-resistant isolates, the blaGES-5 and blaMOX genes were the most prevalent. Of the 10 isolates examined, three were capable of transferring carbapenem resistance to susceptible recipient E. coli. Our results suggest that conventionally treated municipal and untreated hospital wastewater is a reservoir for 3GC- and carbapenem-resistant, potentially harmful Aeromonas spp. that can be introduced into aquatic systems and pose a threat to both the environment and public health.
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Affiliation(s)
- Sara Drk
- Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička 54, 10 002 Zagreb, Croatia
| | - Ana Puljko
- Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička 54, 10 002 Zagreb, Croatia
| | - Mia Dželalija
- Department of Biology, Faculty of Science, University of Split, Ruđera Boškovića 33, 21 000 Split, Croatia
| | - Nikolina Udiković-Kolić
- Division for Marine and Environmental Research, Ruđer Bošković Institute, Bijenička 54, 10 002 Zagreb, Croatia
- Correspondence:
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Song Y, Wang LF, Zhou K, Liu S, Guo L, Ye LY, Gu J, Cheng Y, Shen DX. Epidemiological characteristics, virulence potential, antimicrobial resistance profiles, and phylogenetic analysis of Aeromonas caviae isolated from extra-intestinal infections. Front Cell Infect Microbiol 2023; 13:1084352. [PMID: 36909720 PMCID: PMC9999030 DOI: 10.3389/fcimb.2023.1084352] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 02/13/2023] [Indexed: 03/14/2023] Open
Abstract
Objective Aeromonas caviae (A. caviae) is one of the major etiological agents in human intestinal infections reported to be associated with a broad spectrum of extra-intestinal infections with increasing incidence over recent years. Although previous studies have established its significance as a causative agent of both bloodstream and gastrointestinal infections, the characteristics of A. caviae that cause extra-intestinal infections remain unilluminated.In this single-center retrospective study, we investigated epidemiological characteristics, antimicrobial resistance genes and phenotypes, virulence genes, and phyloevolution of 47 clinical A. caviae isolated from patients with extra-intestinal infections from 2017 to 2020. Methods A. caviae strains were identified by biochemical tests and matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF/MS), ultimately confirmed to species level by whole-genome sequencing (WGS). Antimicrobial resistance and virulence genes were identified using the Comprehensive Antibiotic Resistance Database (CARD) and the virulence factor database (VFDB), respectively. Phylogenetic analysis of 47 clinical strains was performed by combining with 521 A. caviae strains from NCBI database. Results A. caviae was an opportunistic pathogen in immunocompromised patients, especially those with underlying hepatobiliary diseases and malignancies. 19 out of 47 isolates were identified as multidrug resistance (MDR) strains. Piperacillin-tazobactam, levofloxacin, gentamicin, amikacin with a resistance rate of less than 10% remained as options to treat extra-intestinal infections. 24 out of 47 isolates exhibited non-susceptibility to cephalosporins and cephamycins, all of which carried β-lactamase gene, including bla MOX, bla PER-3, bla OXA, bla NDM, and bla CphA. Most stains (98%, 46/47) carried at least one of the virulence genes, but extra-intestinal infections had a low mortality rate. Phylogenetic analysis indicated the risk of nosocomial transmission but revealed no outbreak. However, the emergence of MDR and β-lactamase resistance genes in extra-intestinal isolates of A. caviae is becoming an increasing risk to public health and requires attention. Conclusions This study strengthen our understanding of A.caviae isolated from extra-intestinal infections. It may contribute to the management of extra-intestinal infections as well as the prevention and control of drug resistance.
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Affiliation(s)
- Yang Song
- Department of Clinical Laboratory, Medical School of Chinese PLA, Beijing, China
| | - Li-feng Wang
- Department of Clinical Laboratory, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Kuai Zhou
- Department of Clinical Laboratory, Xuanhan People’s Hospital, Xuanhan, Sichuan, China
| | - Shuang Liu
- Department of Clinical Laboratory, Hainan Modern Women and Children’s Hospital, Haikou, China
| | - Ling Guo
- Department of Clinical Laboratory, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Li-yan Ye
- Department of Clinical Laboratory, First Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Jiang Gu
- Department of Clinical Microbiology and Immunology, College of Pharmacy and Medical Laboratory, Army Medical University, Chongqing, China
| | - Yan Cheng
- Department of Basic Medical Laboratory, The 980th Hospital of the PLA Joint Logistical Support Force, Bethune International Peace Hospital, Shijiazhuang, China
- *Correspondence: Ding-xia Shen, ; Yan Cheng,
| | - Ding-xia Shen
- Department of Clinical Laboratory, Medical School of Chinese PLA, Beijing, China
- Department of Clinical Laboratory, First Medical Center of Chinese PLA General Hospital, Beijing, China
- *Correspondence: Ding-xia Shen, ; Yan Cheng,
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Luo X, Mu K, Zhao Y, Zhang J, Qu Y, Hu D, Jia Y, Dai P, Weng J, Wang D, Yu L. Emergence of blaNDM– 1-Carrying Aeromonas caviae K433 Isolated From Patient With Community-Acquired Pneumonia. Front Microbiol 2022; 13:825389. [PMID: 35663877 PMCID: PMC9161076 DOI: 10.3389/fmicb.2022.825389] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/16/2022] [Indexed: 11/24/2022] Open
Abstract
To demonstrate the detailed genetic characteristics of a blaNDM–1-carrying multidrug-resistant Aeromonas caviae strain, the complete genome of the A. caviae strain K433 was sequenced by Illumina HiSeq and Oxford nanopore platforms, and mobile genetic elements associated with antibiotic resistance genes were analyzed by a series of bioinformatics methods. A. caviae K433 which was determined to produce class B carbapenemase, was resistant to most antibiotics tested except amikacin. The genome of K433 consisted of a chromosome cK433 (6,482-kb length) and two plasmids: pK433-qnrS (7.212-kb length) and pK433-NDM (200.855-kb length), the last being the first investigated blaNDM-carrying plasmid from Aeromonas spp. By comparison of the backbone and MDR regions from the plasmids studied, they involved a highly homologous sequence structure. This study provides in-depth genetic insights into the plasmids integrated with blaNDM-carrying genetic elements from Aeromonas spp.
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Affiliation(s)
- Xinhua Luo
- Department of Clinical Laboratory Medicine, Taizhou Municipal Hospital Affiliated With Taizhou University, Taizhou, China
| | - Kai Mu
- Beijing Institute of Radiation Medicine, Beijing, China
- Beijing Key Laboratory of New Molecular Diagnosis Technologies for Infectious Diseases, Beijing, China
| | - Yujie Zhao
- Department of Clinical Laboratory Medicine, Ningbo Medical Center Li Huili Hospital, Ningbo, China
| | - Jin Zhang
- Department of Clinical Laboratory Medicine, Taizhou Municipal Hospital Affiliated With Taizhou University, Taizhou, China
| | - Ying Qu
- Department of Clinical Laboratory Medicine, Taizhou Municipal Hospital Affiliated With Taizhou University, Taizhou, China
| | - Dakang Hu
- Department of Clinical Laboratory Medicine, Taizhou Municipal Hospital Affiliated With Taizhou University, Taizhou, China
| | - Yifan Jia
- Department of Clinical Laboratory Medicine, Taizhou Municipal Hospital Affiliated With Taizhou University, Taizhou, China
| | - Piaopiao Dai
- Department of Clinical Laboratory Medicine, Taizhou Municipal Hospital Affiliated With Taizhou University, Taizhou, China
| | - Jian Weng
- Taizhou Center for Disease Control and Prevention, Taizhou, China
| | - Dongguo Wang
- Department of Central Laboratory, Taizhou Municipal Hospital Affiliated With Taizhou University, Taizhou, China
- Dongguo Wang,
| | - Lianhua Yu
- Department of Clinical Laboratory Medicine, Taizhou Municipal Hospital Affiliated With Taizhou University, Taizhou, China
- *Correspondence: Lianhua Yu,
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Hammer-Dedet F, Jumas-Bilak E, Licznar-Fajardo P. The Hydric Environment: A Hub for Clinically Relevant Carbapenemase Encoding Genes. Antibiotics (Basel) 2020; 9:antibiotics9100699. [PMID: 33076221 PMCID: PMC7602417 DOI: 10.3390/antibiotics9100699] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 10/06/2020] [Accepted: 10/10/2020] [Indexed: 12/31/2022] Open
Abstract
Carbapenems are β-lactams antimicrobials presenting a broad activity spectrum and are considered as last-resort antibiotic. Since the 2000s, carbapenemase producing Enterobacterales (CPE) have emerged and are been quickly globally spreading. The global dissemination of carbapenemase encoding genes (CEG) within clinical relevant bacteria is attributed in part to its location onto mobile genetic elements. During the last decade, carbapenemase producing bacteria have been isolated from non-human sources including the aquatic environment. Aquatic ecosystems are particularly impacted by anthropic activities, which conduce to a bidirectional exchange between aquatic environments and human beings and therefore the aquatic environment may constitute a hub for CPE and CEG. More recently, the isolation of autochtonous aquatic bacteria carrying acquired CEG have been reported and suggest that CEG exchange by horizontal gene transfer occurred between allochtonous and autochtonous bacteria. Hence, aquatic environment plays a central role in persistence, dissemination and emergence of CEG both within environmental ecosystem and human beings, and deserves to be studied with particular attention.
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Affiliation(s)
- Florence Hammer-Dedet
- UMR 5569 HydroSciences Montpellier, Université de Montpellier, CNRS, IRD, 34090 Montpellier, France; (F.H.-D.); (E.J.-B.)
| | - Estelle Jumas-Bilak
- UMR 5569 HydroSciences Montpellier, Université de Montpellier, CNRS, IRD, 34090 Montpellier, France; (F.H.-D.); (E.J.-B.)
- Département d’Hygiène Hospitalière, CHU Montpellier, 34090 Montpellier, France
| | - Patricia Licznar-Fajardo
- UMR 5569 HydroSciences Montpellier, Université de Montpellier, CNRS, IRD, 34090 Montpellier, France; (F.H.-D.); (E.J.-B.)
- Département d’Hygiène Hospitalière, CHU Montpellier, 34090 Montpellier, France
- Correspondence:
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Tang L, Huang J, She J, Zhao K, Zhou Y. Co-Occurrence of the bla KPC-2 and Mcr-3.3 Gene in Aeromonas caviae SCAc2001 Isolated from Patients with Diarrheal Disease. Infect Drug Resist 2020; 13:1527-1536. [PMID: 32547122 PMCID: PMC7259443 DOI: 10.2147/idr.s245553] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 04/23/2020] [Indexed: 01/24/2023] Open
Abstract
Purpose To characterize the genetic feature of a multi-drug-resistant Aeromonas caviae strain isolated from the diarrhea sample of a 45-year-old male patient with acute diarrhea. Materials and Methods Whole-genome of the A. caviae strain SCAc2001 was sequenced via the Illumina system, followed by a series of bioinformatic analyses to describe the genetic feature. Results The genome sequence of A. caviae SCAc2001 was assembled into 340 scaffolds (305 of them were > 1000 bp in length and 4,487,370 bp in total) with an average G+C content of 61.09%. Phylogenetic analysis showed that the A. caviae SCAc2001 strain was highly similar to the A. caviae strain R25-2 and T25-39. Resistome analysis identified that A. caviae SCAc2001 carried 13 antimicrobial resistance genes, including β-lactams (blaKPC, blaCTX-M-14, blaTEM-1, blaOXA-10, blaOXA-427, blaVEB-3 and blaMOX-6), aminoglycosides (aadA1), fluoroquinolones (aac(6ʹ)-Ib-cr), phenicol resistance (catB3), sulfonamide (sul1), trimethoprim (dfrA5) and colistin resistance (mcr-3.3).And also, A. caviae ScAc2001 carried 54 putative virulence genes including the type IV pilus, fimbria, flagellarthe, and hemolysin A encoding genes, and 12 pathogen–host interactions (PHI) genes. There were also four genomic islands and eight prophages in the genome of A. caviae ScAc2001. In addition, A. caviae SCAc2001 also carried three secondary metabolism products coding clusters including nonribosomal peptide synthetases (nrps), hserlactone and bacteriocin. Conclusion A. caviae ScAc2001 carries many resistance genes, a variety of virulence factors, PHI genes and four genomic islands and eight prophages, which poses a severe threat to infectious diseases control strategies, diagnosis methods and clinical treatment.
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Affiliation(s)
- Lingtong Tang
- Department of Pathogenic Biology, School of Basic Medicine, Southwest Medical University, Luzhou 646000, Sichuan, People's Republic of China.,Department of Clinical Laboratory, People's Hospital of Gao County, Yibing 644000, Sichuan, People's Republic of China
| | - Jianglian Huang
- Department of Clinical Laboratory, The Second Affiliated Hospital of Xiamen Medical College, Xiaman 361600, People's Republic of China
| | - Junping She
- Department of Pathogenic Biology, School of Basic Medicine, Southwest Medical University, Luzhou 646000, Sichuan, People's Republic of China
| | - Kelei Zhao
- Antibiotics Research and Re-Evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu 610052, Sichuan, People's Republic of China
| | - Yingshun Zhou
- Department of Pathogenic Biology, School of Basic Medicine, Southwest Medical University, Luzhou 646000, Sichuan, People's Republic of China
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Bosch T, Schade R, Landman F, Schouls L, Dijk KV. A blaVIM-1 positive Aeromonas hydrophila strain in a near-drowning patient: evidence for interspecies plasmid transfer within the patient. Future Microbiol 2020; 14:1191-1197. [PMID: 31625443 DOI: 10.2217/fmb-2019-0091] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: To show that a strain of Aeromonas hydrophila became resistant to carbapenems by interspecies transfer of a plasmid using long-read sequencing. Material & methods: Whole genome sequencing of the four isolates was done using Illumina Hiseq, while the plasmid was reconstructed using the MinION sequencer. The resistome was identified with ResFinder. Results: Whole genome sequencing and long-read sequencing showed that all isolates carried a blaVIM-1 gene located on a 165 kb incA/C plasmid. ResFinder confirmed that the resistome of the plasmid, comprising 13 resistance genes, was identical within all isolates. Discussion: Long-read sequencing using the MinION successfully reconstructed a plasmid that was identical in all isolates, providing evidence for horizontal gene transfer of this blaVIM-1 gene carrying plasmid within the patient.
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Affiliation(s)
- Thijs Bosch
- Centre for Infectious Diseases Control, National Institute for Public Health & the Environment (RIVM), Bilthoven, The Netherlands
| | - Rogier Schade
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Medical Microbiology & Infection Control, Amsterdam, The Netherlands
| | - Fabian Landman
- Centre for Infectious Diseases Control, National Institute for Public Health & the Environment (RIVM), Bilthoven, The Netherlands
| | - Leo Schouls
- Centre for Infectious Diseases Control, National Institute for Public Health & the Environment (RIVM), Bilthoven, The Netherlands
| | - Karin van Dijk
- Amsterdam UMC, Vrije Universiteit Amsterdam, Department of Medical Microbiology & Infection Control, Amsterdam, The Netherlands
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Irrgang A, Tenhagen BA, Pauly N, Schmoger S, Kaesbohrer A, Hammerl JA. Characterization of VIM-1-Producing E. coli Isolated From a German Fattening Pig Farm by an Improved Isolation Procedure. Front Microbiol 2019; 10:2256. [PMID: 31632372 PMCID: PMC6779854 DOI: 10.3389/fmicb.2019.02256] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 09/17/2019] [Indexed: 01/08/2023] Open
Abstract
A few reports indicate that livestock might represent a new reservoir for carbapenemase-producing Enterobacteriaceae (CPE). In 2015, VIM-1-producing Escherichia coli were detected at slaughter in colon contents of animals from a German fattening pig farm within the national monitoring on ESBL-producing E. coli. In this study, pooled faces samples from pigs, as well as samples from the barn surrounding environment of this fattening farm were taken, to evaluate the dissemination of CPEs. Several modifications of the culture-dependent detection procedure were investigated for their potential to improve the sensitivity of the CPE isolation method. The current reference procedure was adapted by adding a real-time PCR pre-screening and additional enrichment steps. It was possible to isolate 32 VIM-1-producing E. coli from four fecal samples of three different barns using two serial enrichment steps in combination with real-time PCR and selective agar plates. By genetic typing, we confirmed the presence of two E. coli clonal lineages circulating on this particular farm: one was harboring the blaVIM–1 on an IncHI2 plasmid while the second lineage carried the gene on the chromosome. Despite its different locations, the blaVIM–1 gene was harbored on a class 1 integron in both clonal lineages. Whole-genome sequencing revealed that the VIM-1-carrying plasmids exhibited only slight variability in its compositions and sizes. We assume that the prevalence of CPEs in animal production in Germany and other European countries might be underestimated and there is a concern of further spread of VIM-1-producing bacteria in German livestock and food.
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Affiliation(s)
- A Irrgang
- Unit of Epidemiology, Zoonoses and Antimicrobial Resistance, Department of Biological Safety, German Federal Institute for Risk Assessment (Bundesinstitut für Risikobewertung, BfR), Berlin, Germany
| | - B-A Tenhagen
- Unit of Epidemiology, Zoonoses and Antimicrobial Resistance, Department of Biological Safety, German Federal Institute for Risk Assessment (Bundesinstitut für Risikobewertung, BfR), Berlin, Germany
| | - N Pauly
- Unit of Epidemiology, Zoonoses and Antimicrobial Resistance, Department of Biological Safety, German Federal Institute for Risk Assessment (Bundesinstitut für Risikobewertung, BfR), Berlin, Germany
| | - S Schmoger
- Unit of Epidemiology, Zoonoses and Antimicrobial Resistance, Department of Biological Safety, German Federal Institute for Risk Assessment (Bundesinstitut für Risikobewertung, BfR), Berlin, Germany
| | - Annemarie Kaesbohrer
- Unit of Epidemiology, Zoonoses and Antimicrobial Resistance, Department of Biological Safety, German Federal Institute for Risk Assessment (Bundesinstitut für Risikobewertung, BfR), Berlin, Germany.,Institute for Veterinary Public Health, University of Veterinary Medicine Vienna, Vienna, Austria
| | - J A Hammerl
- Unit of Epidemiology, Zoonoses and Antimicrobial Resistance, Department of Biological Safety, German Federal Institute for Risk Assessment (Bundesinstitut für Risikobewertung, BfR), Berlin, Germany
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Yang S, He T, Sun J, Sun S. Distinct Antimicrobial Resistance Profiling Of Clinically Important Aeromonas Spp. In Southwest China: A Seven-Year Surveillance Study. Infect Drug Resist 2019; 12:2971-2978. [PMID: 31571949 PMCID: PMC6756270 DOI: 10.2147/idr.s216926] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 09/04/2019] [Indexed: 11/23/2022] Open
Abstract
Background Co-evolution of host and aeromonads has diversified their spectrums of diseases and antibiograms, while a paucity of data was concerning about this diversity in China. To fill this gap, this study was aimed to investigate and compare antimicrobial resistance (AMR) patterns of clinically important Aeromonas spp. from various clinical sources. Methods A multicenter retrospective surveillance study was conducted in Chongqing from 2011 to 2017. Data of strains were retrieved from the database of China Antimicrobial Resistance Surveillance System (CARSS). Whonet 5.6 and Graphpad Prism 6 Software were adopted to determine and compare distribution and AMR patterns. Results Among 1135 Aeromonas strains, Aeromonas hydrophila complex (65.6%, 745/1135) was the most predominant species, followed by Aeromonas veronii complex (16.7%, 190/1135) and Aeromonas caviae complex (15.3%, 174/1135). Sputum was the most frequent source of strains (27.7%), followed by wound (20.8%), bloodstream (10.8%) and urine (8.8%). Urinary strains demonstrated the highest resistance rates to ceftriaxone (65.6%), ceftazidime (52.1%), cefepime (38.3%), ciprofloxacin (47.7%) and trimethoprim-sulfamethoxazole (56.6%). Similar AMR pattern was observed in intestinal strains, with corresponding resistance rates of 29.4%, 28.9%, 22.2%, 27.3% and 45%, respectively. However, respiratory, bloodstream and skin strains exhibited resistance rates of less than 20% to most of the antimicrobials tested. In terms of species, approximately 30% of Aeromonas hydrophila complex and Aeromonas caviae complex strains were resistant to ceftriaxone and trimethoprim-sulfamethoxazole, while Aeromonas veronii complex strains harbored resistance rates of less than 20% to all tested antimicrobials. Although antibiograms of these species were distinct, they remained constant from 2011 to 2017. Conclusions Distinct AMR patterns between species and sources highlighted the predominance of Aeromonas hydrophila complex and high resistance of strains in urine and intestine to extended-spectrum cephalosporins, ciprofloxacin and trimethoprim-sulfamethoxazole in Southwest China. Temporally constant AMR patterns should not relax the vigilance of antimicrobial resistance in clinically important Aeromonas species.
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Affiliation(s)
- Shuangshuang Yang
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, People's Republic of China.,Key Laboratory of Laboratory Medical Diagnostics, Ministry of Education, Department of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Tong He
- Department of Laboratory Animal Medicine, Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Jide Sun
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Shan Sun
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, People's Republic of China
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Dandachi I, Chaddad A, Hanna J, Matta J, Daoud Z. Understanding the Epidemiology of Multi-Drug Resistant Gram-Negative Bacilli in the Middle East Using a One Health Approach. Front Microbiol 2019; 10:1941. [PMID: 31507558 PMCID: PMC6716069 DOI: 10.3389/fmicb.2019.01941] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 08/07/2019] [Indexed: 12/16/2022] Open
Abstract
In the last decade, extended-spectrum cephalosporin and carbapenem resistant Gram-negative bacilli (GNB) have been extensively reported in the literature as being disseminated in humans but also in animals and the environment. These resistant organisms often cause treatment challenges due to their wide spectrum of antibiotic resistance. With the emergence of colistin resistance in animals and its subsequent detection in humans, the situation has worsened. Several studies reported the transmission of resistant organisms from animals to humans. Studies from the middle east highlight the spread of resistant organisms in hospitals and to a lesser extent in livestock and the environment. In view of the recent socio-economical conflicts that these countries are facing in addition to the constant population mobilization; we attempt in this review to highlight the gaps of the prevalence of resistance, antibiotic consumption reports, infection control measures and other risk factors contributing in particular to the spread of resistance in these countries. In hospitals, carbapenemases producers appear to be dominant. In contrast, extended spectrum beta lactamases (ESBL) and colistin resistance are becoming a serious problem in animals. This is mainly due to the continuous use of colistin in veterinary medicine even though it is now abandoned in the human sphere. In the environment, despite the small number of reports, ESBL and carbapenemases producers were both detected. This highlights the importance of the latter as a bridge between humans and animals in the transmission chain. In this review, we note that in the majority of the Middle Eastern area, little is known about the level of antibiotic consumption especially in the community and animal farms. Furthermore, some countries are currently facing issues with immigrants, poverty and poor living conditions which has been imposed by the civil war crisis. This all greatly facilitates the dissemination of resistance in all environments. In the one health concept, this work re-emphasizes the need to have global intervention measures to avoid dissemination of antibiotic resistance in humans, animals and the environment in Middle Eastern countries.
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Affiliation(s)
- Iman Dandachi
- Faculty of Medicine and Medical Sciences, Clinical Microbiology Laboratory, University of Balamand, Beirut, Lebanon
| | - Amer Chaddad
- Faculty of Medicine and Medical Sciences, Clinical Microbiology Laboratory, University of Balamand, Beirut, Lebanon
| | - Jason Hanna
- Faculty of Medicine and Medical Sciences, Clinical Microbiology Laboratory, University of Balamand, Beirut, Lebanon
| | - Jessika Matta
- Faculty of Medicine and Medical Sciences, Clinical Microbiology Laboratory, University of Balamand, Beirut, Lebanon
| | - Ziad Daoud
- Faculty of Medicine and Medical Sciences, Clinical Microbiology Laboratory, University of Balamand, Beirut, Lebanon
- Division of Clinical Microbiology, Saint George Hospital University Medical Center, Beirut, Lebanon
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11
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Sekizuka T, Inamine Y, Segawa T, Hashino M, Yatsu K, Kuroda M. Potential KPC-2 carbapenemase reservoir of environmental Aeromonas hydrophila and Aeromonas caviae isolates from the effluent of an urban wastewater treatment plant in Japan. ENVIRONMENTAL MICROBIOLOGY REPORTS 2019; 11:589-597. [PMID: 31106978 PMCID: PMC6851574 DOI: 10.1111/1758-2229.12772] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 05/16/2019] [Indexed: 06/09/2023]
Abstract
Aeromonas hydrophila and Aeromonas caviae adapt to saline water environments and are the most predominant Aeromonas species isolated from estuaries. Here, we isolated antimicrobial-resistant (AMR) Aeromonas strains (A. hydrophila GSH8-2 and A. caviae GSH8M-1) carrying the carabapenemase blaKPC-2 gene from a wastewater treatment plant (WWTP) effluent in Tokyo Bay (Japan) and determined their complete genome sequences. GSH8-2 and GSH8M-1 were classified as newly assigned sequence types ST558 and ST13, suggesting no supportive evidence of clonal dissemination. The strains appear to have acquired blaKPC-2 -positive IncP-6-relative plasmids (pGSH8-2 and pGSH8M-1-2) that share a common backbone with plasmids in Aeromonas sp. ASNIH3 isolated from hospital wastewater in the United States, A. hydrophila WCHAH045096 isolated from sewage in China, other clinical isolates (Klebsiella, Enterobacter and Escherichia coli), and wastewater isolates (Citrobacter, Pseudomonas and other Aeromonas spp.). In addition to blaKPC-2 , pGSH8M-1-2 carries an IS26-mediated composite transposon including a macrolide resistance gene, mph(A). Although Aeromonas species are opportunistic pathogens, they could serve as potential environmental reservoir bacteria for carbapenemase and AMR genes. AMR monitoring from WWTP effluents will contribute to the detection of ongoing AMR dissemination in the environment and might provide an early warning of potential dissemination in clinical settings and communities.
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Affiliation(s)
- Tsuyoshi Sekizuka
- Pathogen Genomics CenterNational Institute of Infectious Diseases1‐23‐1 Toyama, ShinjukuTokyo162‐8640Japan
| | - Yuba Inamine
- Pathogen Genomics CenterNational Institute of Infectious Diseases1‐23‐1 Toyama, ShinjukuTokyo162‐8640Japan
| | - Takaya Segawa
- Pathogen Genomics CenterNational Institute of Infectious Diseases1‐23‐1 Toyama, ShinjukuTokyo162‐8640Japan
| | - Masanori Hashino
- Pathogen Genomics CenterNational Institute of Infectious Diseases1‐23‐1 Toyama, ShinjukuTokyo162‐8640Japan
| | - Koji Yatsu
- Pathogen Genomics CenterNational Institute of Infectious Diseases1‐23‐1 Toyama, ShinjukuTokyo162‐8640Japan
| | - Makoto Kuroda
- Pathogen Genomics CenterNational Institute of Infectious Diseases1‐23‐1 Toyama, ShinjukuTokyo162‐8640Japan
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12
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Xu H, Wang X, Yu X, Zhang J, Guo L, Huang C, Jiang X, Li X, Feng Y, Zheng B. First detection and genomics analysis of KPC-2-producing Citrobacter isolates from river sediments. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 235:931-937. [PMID: 29358148 DOI: 10.1016/j.envpol.2017.12.084] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 12/22/2017] [Accepted: 12/22/2017] [Indexed: 06/07/2023]
Abstract
The wide spread of carbapenemase-producing Enterobacteriaceae (CPE) in the environment is an emerging environmental issue with potentially-serious public health implications. However, carbapenemase-producing Citrobacter from environment has rarely been investigated. Here we report the isolation and comparative genomics of carbapenemase-producing Citrobacter isolates from river sediment in China. Potential CPE was isolated by selective MacConkey agar plates containing 2 mg/L meropenem. The presence of carbapenemase genes was detected by PCR and sequencing. The clonal relatedness of Klebsiella pneumoniae carbapenemase (KPC-2)-producing Citrobacter isolates was assessed by pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing. Plasmid analysis of KPC-2-producing Citrobacter isolates was performed by S1-PFGE, Southern blotting, and whole genome sequencing. A total of four KPC-2-producing Citrobacter and three Aeromonas isolates were recovered from 54 sediment cultures of Shifeng River. Notably, all KPC-producing isolates were isolated from sampling sites near a waste water treatment plant. Antimicrobial susceptibility testing showed that three of the four sequenced isolates (C1710, C191, and C196) resistant to multiple antibiotics. Genotyping and pan-genome analyses revealed that the C191 and C196 C. freundii isolates exhibited a high level of genetic similarity. Plasmid analysis confirmed that the blaKPC-2 gene is located on either IncF or IncN3 plasmids in all isolates. The blaKPC-2 gene of C1710, C181 and C191 was successfully transferred with E. coli EC600 as the recipient strain. In silico analysis further suggested that pKPC-191 is a novel IncF plasmid, with 99% identity to two previously described IncFII plasmids at 71% coverage. We report here the presence of diverse conjugative blaKPC-2 plasmids from environmental Citrobacter isolates, which poses the possible dissemination of antimicrobial resistance into clinical isolates. To our knowledge, this is the first study to culture and characterize KPC-2-producing Citrobacter isolates from river sediments in China.
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Affiliation(s)
- Hao Xu
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xin Wang
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China; School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, China
| | - Xiao Yu
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jing Zhang
- Division of Respiratory Diseases, Guangdong General Hospital, Guangzhou, China
| | - Lihua Guo
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Chen Huang
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xiawei Jiang
- College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xuewen Li
- School of Public Health, Shandong University, Jinan, China
| | - Youjun Feng
- Department of Medical Microbiology and Parasitology, Zhejiang University School of Medicine, Hangzhou, China
| | - Beiwen Zheng
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.
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13
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Esposito EP, Gaiarsa S, Del Franco M, Crivaro V, Bernardo M, Cuccurullo S, Pennino F, Triassi M, Marone P, Sassera D, Zarrilli R. A Novel IncA/C1 Group Conjugative Plasmid, Encoding VIM-1 Metallo-Beta-Lactamase, Mediates the Acquisition of Carbapenem Resistance in ST104 Klebsiella pneumoniae Isolates from Neonates in the Intensive Care Unit of V. Monaldi Hospital in Naples. Front Microbiol 2017; 8:2135. [PMID: 29163422 PMCID: PMC5675864 DOI: 10.3389/fmicb.2017.02135] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 10/19/2017] [Indexed: 11/13/2022] Open
Abstract
The emergence of carbapenemase producing Enterobacteriaceae has raised major public health concern. The aim of this study was to investigate the molecular epidemiology and the mechanism of carbapenem resistance acquisition of multidrug-resistant Klebsiella pneumoniae isolates from 20 neonates in the neonatal intensive care unit (NICU) of the V. Monaldi Hospital in Naples, Italy, from April 2015 to March 2016. Genotype analysis by pulsed-field gel electrophoresis (PFGE) and multi-locus sequence typing (MLST) identified PFGE type A and subtypes A1 and A2 in 17, 2, and 1 isolates, respectively, and assigned all isolates to sequence type (ST) 104. K. pneumoniae isolates were resistant to all classes of β-lactams including carbapenems, fosfomycin, gentamicin, and trimethoprim-sulfamethoxazole, but susceptible to quinolones, amikacin, and colistin. Conjugation experiments demonstrated that resistance to third-generation cephems and imipenem could be transferred along with an IncA/C plasmid containing the extended spectrum β-lactamase blaSHV -12 and carbapenem-hydrolyzing metallo-β-lactamase blaV IM-1 genes. The plasmid that we called pIncAC_KP4898 was 156,252 bp in size and included a typical IncA/C backbone, which was assigned to ST12 and core genome (cg) ST12.1 using the IncA/C plasmid MLST (PMLST) scheme. pIncAC_KP4898 showed a mosaic structure with blaV IM-1 into a class I integron, blaSHV -12 flanked by IS6 elements, a mercury resistance and a macrolide 2'-phosphotransferase clusters, ant(3″), aph(3″), aacA4, qnrA1, sul1, and dfrA14 conferring resistance to aminoglycosides, quinolones, sulfonamides, and trimethoprim, respectively, several genes predicted to encode transfer functions and proteins involved in DNA transposition. The acquisition of pIncAC_KP4898 carrying blaV IM-1 and blaSHV -12 contributed to the spread of ST104 K. pneumoniae in the NICU of V. Monaldi Hospital in Naples.
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Affiliation(s)
- Eliana P Esposito
- Department of Public Health, University of Naples 'Federico II', Naples, Italy
| | - Stefano Gaiarsa
- Department of Bioscience, University of Milan, Milan, Italy.,Microbiology and Virology Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo, Pavia, Italy
| | | | - Valeria Crivaro
- Azienda Ospedaliera di Rilievo Nazionale (AORN) dei Colli, V. Monaldi Hospital, Naples, Italy
| | - Mariano Bernardo
- Azienda Ospedaliera di Rilievo Nazionale (AORN) dei Colli, V. Monaldi Hospital, Naples, Italy
| | - Susanna Cuccurullo
- Azienda Ospedaliera di Rilievo Nazionale (AORN) dei Colli, V. Monaldi Hospital, Naples, Italy
| | - Francesca Pennino
- Department of Public Health, University of Naples 'Federico II', Naples, Italy
| | - Maria Triassi
- Department of Public Health, University of Naples 'Federico II', Naples, Italy
| | - Piero Marone
- Microbiology and Virology Unit, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo, Pavia, Italy
| | - Davide Sassera
- Department of Biology and Biotechnologies, University of Pavia, Pavia, Italy
| | - Raffaele Zarrilli
- Department of Public Health, University of Naples 'Federico II', Naples, Italy.,Centro di Inngegneria Genetica (CEINGE) Biotecnologie Avanzate, Naples, Italy
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14
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Carriero MM, Mendes Maia AA, Moro Sousa RL, Henrique-Silva F. Characterization of a new strain of Aeromonas dhakensis isolated from diseased pacu fish (Piaractus mesopotamicus) in Brazil. JOURNAL OF FISH DISEASES 2016; 39:1285-1295. [PMID: 26850370 DOI: 10.1111/jfd.12457] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 12/10/2015] [Accepted: 12/10/2015] [Indexed: 06/05/2023]
Abstract
This study provides a detailed description and characterization of a strain of Aeromonas dhakensis isolated from a diseased juvenile Piaractus mesopotamicus obtained from the fish farm of the National Center for Continental Fish Research and Conservation (CEPTA/ICMBio), in the state of São Paul, Brazil. Biochemical tests using the VITEK 2 automated bacterial identification system identified the isolate to genus level; however, further molecular analysis of the 16S rRNA, gyrB and rpoD genes showed that the strain belonged to the species A. dhakensis. As expected, the isolated A. dhakensis strain was resistant to ampicillin and ampicillin/sulbactam, as resistance to ampicillin is a typical characteristic of the genus Aeromonas. Resistance to cefoxitin and meropenem was also observed, but the strain was susceptible to most of the tested antibiotics. The isolated strain of A. dhakensis caused acute haemorrhagic septicaemia in experimentally infected P. mesopotamicus, with a fifty per cent lethal dose of 1.14 × 105 CFU/fish. This is the first report of the occurrence of an A. dhakensis strain causing an infection in a fish species of South America, providing important epidemiologic data relating to this important pathogenic species.
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Affiliation(s)
- M M Carriero
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil.
| | - A A Mendes Maia
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, SP, Brazil
| | - R L Moro Sousa
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, SP, Brazil
| | - F Henrique-Silva
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil
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15
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Cilastatin does not affect Carba NP test performance for detection of carbapenemase production in Enterobacteriaceae. Wien Klin Wochenschr 2016; 129:29-32. [PMID: 27796502 DOI: 10.1007/s00508-016-1106-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 09/30/2016] [Indexed: 10/20/2022]
Abstract
The Carba NP test is a simple confirmation method for carbapenemase-producing Enterobacteriaceae (CPE) but reagents have to be freshly prepared as imipenem sodium salt is unstable. We evaluated the Carba NP test performance based on a commercially available 10-fold cheaper drug formulation containing cilastatin against 217 CPE and 78 non-CPE isolates with reduced meropenem susceptibility. Specificity and sensitivity were 100 % and 98.6 %, respectively and 3 false negative results of blaVIM-1-producing Proteus mirabilis were reproducible with the RAPIDEC® Carba NP test. Cilastatin does not disturb test performance provided that the imipenem drug quantity is doubled.
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16
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Population Screening Using Sewage Reveals Pan-Resistant Bacteria in Hospital and Community Samples. PLoS One 2016; 11:e0164873. [PMID: 27780222 PMCID: PMC5079554 DOI: 10.1371/journal.pone.0164873] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Accepted: 10/03/2016] [Indexed: 12/16/2022] Open
Abstract
The presence of pan-resistant bacteria worldwide possesses a threat to global health. It is difficult to evaluate the extent of carriage of resistant bacteria in the population. Sewage sampling is a possible way to monitor populations. We evaluated the presence of pan-resistant bacteria in Israeli sewage collected from all over Israel, by modifying the pour plate method for heterotrophic plate count technique using commercial selective agar plates. This method enables convenient and fast sewage sampling and detection. We found that sewage in Israel contains multiple pan-resistant bacteria including carbapenemase resistant Enterobacteriacae carrying blaKPC and blaNDM-1, MRSA and VRE. blaKPC carrying Klebsiella pneumonia and Enterobacter cloacae were the most common Enterobacteriacae drug resistant bacteria found in the sewage locations we sampled. Klebsiella pneumonia, Enterobacter spp., Escherichia coli and Citrobacter spp. were the 4 main CRE isolated from Israeli sewage and also from clinical samples in our clinical microbiology laboratory. Hospitals and Community sewage had similar percentage of positive samplings for blaKPC and blaNDM-1. VRE was found to be more abundant in sewage in Israel than MRSA but there were more locations positive for MRSA and VRE bacteria in Hospital sewage than in the Community. Therefore, our upgrade of the pour plate method for heterotrophic plate count technique using commercial selective agar plates can be a useful tool for routine screening and monitoring of the population for pan-resistant bacteria using sewage.
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Murata M, Morinaga Y, Akamatsu N, Matsuda J, Uno N, Kosai K, Hasegawa H, Okada M, Moriuchi H, Yanagihara K. The Rapid Induction of Carbapenem-Resistance in an Aeromonas dhakensis Blood Isolate. Jpn J Infect Dis 2016; 69:439-41. [DOI: 10.7883/yoken.jjid.2015.098] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Mika Murata
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences
| | - Yoshitomo Morinaga
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences
| | - Norihiko Akamatsu
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences
| | - Junichi Matsuda
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences
| | - Naoki Uno
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences
| | - Kosuke Kosai
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences
| | - Hiroo Hasegawa
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences
| | | | | | - Katsunori Yanagihara
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences
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18
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Antonelli A, D'Andrea MM, Montagnani C, Bartolesi AM, Di Pilato V, Fiorini P, Torricelli F, Galli L, Rossolini GM. Newborn bacteraemia caused by an Aeromonas caviae producing the VIM-1 and SHV-12 β-lactamases, encoded by a transferable plasmid. J Antimicrob Chemother 2015; 71:272-4. [PMID: 26410172 DOI: 10.1093/jac/dkv304] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Alberto Antonelli
- Department of Medical Biotechnologies, University of Siena, Siena, Italy Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | | | - Carlotta Montagnani
- Department of Health Sciences, University of Florence, Florence, Italy Paediatric Infectious Diseases Unit, Anna Meyer Children's University Hospital, Florence, Italy
| | - Anna Maria Bartolesi
- Clinical Microbiology and Virology Unit, Careggi University Hospital, Florence, Italy
| | - Vincenzo Di Pilato
- Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | - Patrizio Fiorini
- Neonatal Intensive Care Unit, Anna Meyer Children's University Hospital, Florence, Italy
| | | | - Luisa Galli
- Department of Health Sciences, University of Florence, Florence, Italy Paediatric Infectious Diseases Unit, Anna Meyer Children's University Hospital, Florence, Italy
| | - Gian Maria Rossolini
- Department of Medical Biotechnologies, University of Siena, Siena, Italy Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy Clinical Microbiology and Virology Unit, Careggi University Hospital, Florence, Italy
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19
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Piotrowska M, Popowska M. Insight into the mobilome of Aeromonas strains. Front Microbiol 2015; 6:494. [PMID: 26074893 PMCID: PMC4444841 DOI: 10.3389/fmicb.2015.00494] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 05/05/2015] [Indexed: 11/13/2022] Open
Abstract
The mobilome is a pool of genes located within mobile genetic elements (MGE), such as plasmids, IS elements, transposons, genomic/pathogenicity islands, and integron-associated gene cassettes. These genes are often referred to as “flexible” and may encode virulence factors, toxic compounds as well as resistance to antibiotics. The phenomenon of MGE transfer between bacteria, known as horizontal gene transfer (HGT), is well documented. The genes present on MGE are subject to continuous processes of evolution and environmental changes, largely induced or significantly accelerated by man. For bacteria, the only chance of survival in an environment contaminated with toxic chemicals, heavy metals and antibiotics is the acquisition of genes providing the ability to survive in such conditions. The process of acquiring and spreading antibiotic resistance genes (ARG) is of particular significance, as it is important for the health of humans and animals. Therefore, it is important to thoroughly study the mobilome of Aeromonas spp. that is widely distributed in various environments, causing many diseases in fishes and humans. This review discusses the recently published information on MGE prevalent in Aeromonas spp. with special emphasis on plasmids belonging to different incompatibility groups, i.e., IncA/C, IncU, IncQ, IncF, IncI, and ColE-type. The vast majority of plasmids carry a number of different transposons (Tn3, Tn21, Tn1213, Tn1721, Tn4401), the 1st, 2nd, or 3rd class of integrons, IS elements (e.g., IS26, ISPa12, ISPa13, ISKpn8, ISKpn6) and encode determinants such as antibiotic and mercury resistance genes, as well as virulence factors. Although the actual role of Aeromonas spp. as a human pathogen remains controversial, species of this genus may pose a serious risk to human health. This is due to the considerable potential of their mobilome, particularly in terms of antibiotic resistance and the possibility of the horizontal transfer of resistance genes.
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Affiliation(s)
- Marta Piotrowska
- Department of Applied Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw Warsaw, Poland
| | - Magdalena Popowska
- Department of Applied Microbiology, Institute of Microbiology, Faculty of Biology, University of Warsaw Warsaw, Poland
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