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Xiao N, Li Y, Lin H, Yang J, Xiao G, Jiang Z, Zhang Y, Chen W, Zhou P, Sun Z, Li J. Characterization of Extended-Spectrum β-Lactamase-Producing Escherichia coli in Animal Farms in Hunan Province, China. Microorganisms 2024; 12:653. [PMID: 38674598 PMCID: PMC11051881 DOI: 10.3390/microorganisms12040653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 04/28/2024] Open
Abstract
Multi-drug resistance of bacteria producing extended-spectrum β-lactamase (ESBL) is a public health challenge. Thus, this study aimed to investigate the antimicrobial susceptibility of ESBL-producing Escherichia coli (ESBL-EC) in Hunan Province, China. A total of 1366 fecal samples were collected from pig, chicken, and cattle farms over a six-year period, which were assessed using strain isolation, 16S rRNA identification, polymerase chain reaction, drug sensitivity testing, whole-genome sequencing, and bioinformatics analysis. The results showed an overall prevalence of 6.66% for ESBL-EC strains, with ESBL positivity extents for pigs, chickens, and cattle isolates at 6.77%, 6.54%, and 12.5%, respectively. Most ESBL-EC isolates were resistant to cefotaxime, tetracycline, and trimethoprim-sulfamethoxazole; however, all the isolates were susceptible to meropenem, with relatively low resistance to amikacin and tigecycline. Various multi-locus sequence types with different origins and similar affinities were identified, with ST155 (n = 16) being the most common subtype. Several types of resistance genes were identified among the 91 positive strains, with beta-lactamase blaCTX-M-55 being the most common ESBL genotype. IncFIB was the predominant plasmid type. Widespread use of antibiotics in animal farming may increase antibiotic resistance, posing a serious threat to the health of farmed animals and, thus, to human food security and health.
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Affiliation(s)
- Ning Xiao
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (N.X.); (J.Y.); (G.X.); (Z.J.); (Y.Z.); (W.C.); (P.Z.)
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China; (Y.L.); (H.L.)
| | - Yujuan Li
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China; (Y.L.); (H.L.)
| | - Hongguang Lin
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China; (Y.L.); (H.L.)
- Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Jie Yang
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (N.X.); (J.Y.); (G.X.); (Z.J.); (Y.Z.); (W.C.); (P.Z.)
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China; (Y.L.); (H.L.)
| | - Gang Xiao
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (N.X.); (J.Y.); (G.X.); (Z.J.); (Y.Z.); (W.C.); (P.Z.)
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China; (Y.L.); (H.L.)
| | - Zonghan Jiang
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (N.X.); (J.Y.); (G.X.); (Z.J.); (Y.Z.); (W.C.); (P.Z.)
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China; (Y.L.); (H.L.)
| | - Yunqiang Zhang
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (N.X.); (J.Y.); (G.X.); (Z.J.); (Y.Z.); (W.C.); (P.Z.)
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China; (Y.L.); (H.L.)
| | - Wenxin Chen
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (N.X.); (J.Y.); (G.X.); (Z.J.); (Y.Z.); (W.C.); (P.Z.)
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China; (Y.L.); (H.L.)
| | - Pengcheng Zhou
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (N.X.); (J.Y.); (G.X.); (Z.J.); (Y.Z.); (W.C.); (P.Z.)
| | - Zhiliang Sun
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (N.X.); (J.Y.); (G.X.); (Z.J.); (Y.Z.); (W.C.); (P.Z.)
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China; (Y.L.); (H.L.)
| | - Jiyun Li
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China; (N.X.); (J.Y.); (G.X.); (Z.J.); (Y.Z.); (W.C.); (P.Z.)
- Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha 410128, China; (Y.L.); (H.L.)
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Zi P, Fang M, Yang H, Zheng J, Ma N, Liu Q. Characterization of an NDM-1-Producing Citrobacter koseri Isolate from China. Infect Drug Resist 2024; 17:61-67. [PMID: 38205064 PMCID: PMC10778185 DOI: 10.2147/idr.s435771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
Purpose The continuous rise in carbapenemase-producing Enterobacteriaceae infections is a major public health concern. However, there is limited information available on New Delhi metallo-β-lactamase-1 (NDM-1) producing Citrobacter koseri. In this study, we isolated a blaNDM-1-carrying C. koseri from a stool sample of an inpatient. Our aim was to investigate the phenotypic and genomic features of this clinically derived carbapenem-resistant C. koseri isolate and to characterize the transmission pattern of the IncFII/IncN plasmid that carries the blaNDM-1 gene. Methods and Results S1-PFGE, Southern blot and conjugation assay confirmed the presence of blaNDM-1 gene in a conjugative plasmid. C. koseri L2395 and transconjugant L2395-EC600 strains showed similar resistance spectrum. Whole-genome analysis revealed that pL2395_NDM is an IncFII/IncN plasmid with a length of 67,839 bp. Moreover, blaNDM-1 gene was found encoded in the ISKpn19-blaNDM-1-ble-tnpF-dsbD-cutA-ISKpn19 cassette array. Phylogenetic analysis revealed that strain L2395 was close to an IMP-4-bearing C. koseri from Australia. Conclusion Ongoing surveillance will be essential to control and prevent the spread of carbapenem-resistant Citrobacter spp. in the future.
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Affiliation(s)
- Panpan Zi
- Department of Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Ming Fang
- Institute for Infection Disease Control, Shandong Center for Disease Control and Prevention, Jinan, People’s Republic of China
| | - Hongfu Yang
- Department of Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Jiahao Zheng
- Institute of Animal Quarantine, Chinese Academy of Inspection and Quarantine, Beijing, People’s Republic of China
| | - Ning Ma
- Department of Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Qilong Liu
- Department of Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, People’s Republic of China
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Rihacek M, Kuthanova M, Splichal Z, Adam V, Hrazdilova K, Vesely R, Zurek L, Cihalova K. Escherichia coli from Human Wounds: Analysis of Resistance to β-Lactams and Expression of RND Efflux Pumps. Infect Drug Resist 2023; 16:7365-7375. [PMID: 38050628 PMCID: PMC10693772 DOI: 10.2147/idr.s435622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 11/04/2023] [Indexed: 12/06/2023] Open
Abstract
Purpose Resistance of pathogenic strains of Escherichia coli to β-lactams, particularly to ampicillin, is on the rise and it is attributed to intrinsic and acquired mechanisms. One important factor contributing to resistance, together with primarily resistance mechanisms, is a mutation and/or an over-expression of the intrinsic efflux pumps in the resistance-nodulation-division (RND) superfamily. Among these efflux pumps, AcrA, AcrB, TolC, and AcrD play an important role in antimicrobial co-resistance, including resistance to β-lactams. Materials and Methods Twelve E. coli isolates obtained from patients' wounds and the control strain of E. coli ATCC 25922 were analyzed. The phenotypic resistance of these isolates to selected β-lactams was assessed by determination of the minimal inhibitory concentration. Additionally, the prevalence of β-lactamase genes (blaTEM, blaCTX-M, blaSHV, and blaAmpC) was screened by PCR. Real-time qPCR was used to determine the expression of the selected efflux pumps acrA, acrB, tolC, and acrD and the repressor acrR after the exposure of E. coli to ampicillin. Results Phenotypic resistance to β-lactams was detected in seven isolates, mainly to ampicillin and piperacillin. This was corroborated by the presence of at least one acquired bla gene in each of these isolates. Although E. coli strains varied in the expression of RND-family efflux pumps after the ampicillin exposure, their gene expression indicated that these pumps did not play a major role in the phenotypic resistance to ampicillin. Conclusion Each E. coli isolate displayed unique characteristics, differing in minimum inhibitory concentration (MIC) values, prevalence of acquired blaTEM and blaCTX-M genes, and expression of the RND-family pumps. This together demonstrates that these clinical isolates employed distinct intrinsic or acquired resistance pathways for their defense against ampicillin. The prevalence and spread of ampicillin resistant E. coli has to be monitored and the search for ampicillin alternatives is needed.
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Affiliation(s)
- Martin Rihacek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
| | - Michaela Kuthanova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
| | - Zbynek Splichal
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
| | - Kristyna Hrazdilova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
| | - Radek Vesely
- Department of Traumatology at the Medical Faculty, Masaryk University and Trauma Hospital Brno, Brno, Czech Republic
- Department of Traumatology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Ludek Zurek
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
| | - Kristyna Cihalova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Brno, Czech Republic
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Karnmongkol C, Wiriyaampaiwong P, Teerakul M, Treeinthong J, Srisamoot N, Tankrathok A. Emergence of NDM-1-producing Raoultella ornithinolytica from reservoir water in Northeast Thailand. Vet World 2023; 16:2321-2328. [PMID: 38152267 PMCID: PMC10750751 DOI: 10.14202/vetworld.2023.2321-2328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/23/2023] [Indexed: 12/29/2023] Open
Abstract
Background and Aim Antibiotic resistance is a major global health threat. The increasing prevalence of drug-resistant bacteria poses a serious challenge to the effective treatment of infections in both humans and animals. Water is a major source of human and animal exposure to bacteria, and the presence of drug-resistant bacteria in water could present a severe threat to public health and animal production. This study investigated the presence of drug-resistant bacteria in Lam Pao Dam (LPD) water in Kalasin, Thailand. Materials and Methods Ampicillin-resistant strains were obtained from LPD water and identified using 16s rDNA sequencing. Antibiotic resistance genes were detected by polymerase chain reaction using specific primers. The presence of antibiotic-resistant bacteria was evaluated using 16s amplicon analysis. The minimum inhibitory concentration (MIC) of Raoultella ornithinolytica strains against antibiotics was determined. Results A total of 12 R. ornithinolytica, 4 Bacillus cereus, and 4 Enterococcus faecalis isolates were resistant to ampicillin. Almost all R. ornithinolytica strains harbored blaSHV and blaOXA genes, and two strains also harbored the blaNDM-1 gene. All four E. faecalis strains harbored the blaIMP gene. The most abundant species in the LPD sample was Exiguobacterium indicum, followed by E. faecalis and R. ornithinolytica. The MICs of 10 R. ornithinolytica strains against five antibiotics revealed that all strains were resistant to ampicillin but susceptible to meropenem, doripenem, ertapenem, and imipenem. Conclusion These findings suggest a high prevalence of drug-resistant bacteria in LPD water. This is a cause for concern, as it could spread antibiotic-resistant infections in the community.
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Affiliation(s)
- Chutima Karnmongkol
- Department of Biotechnology, Faculty of Agricultural Technology, Kalasin University, Kalasin, Thailand
| | - Piyachat Wiriyaampaiwong
- Department of Biotechnology, Faculty of Agricultural Technology, Kalasin University, Kalasin, Thailand
| | - Mullika Teerakul
- Department of Biotechnology, Faculty of Agricultural Technology, Kalasin University, Kalasin, Thailand
| | - Jukkarin Treeinthong
- Department of Fisheries Technology, Faculty of Agricultural Technology, Kalasin University, Kalasin, Thailand
| | - Nattapong Srisamoot
- Department of Biotechnology, Faculty of Agricultural Technology, Kalasin University, Kalasin, Thailand
| | - Anupong Tankrathok
- Department of Biotechnology, Faculty of Agricultural Technology, Kalasin University, Kalasin, Thailand
- Protein and Proteomics Research Center for Commercial and Industrial Purposes (ProCCI), Faculty of Science, Khon Kaen University, Khon Kaen, Thailand
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Qiao J, Chen Y, Ge H, Xu H, Guo X, Liu R, Li C, Chen R, Gou J, Chen M, Zheng B. Coexistence of blaIMP-4, blaNDM-1 and blaOXA-1 in blaKPC-2-producing Citrobacter freundii of clinical origin in China. Front Microbiol 2023; 14:1074612. [PMID: 37378293 PMCID: PMC10291173 DOI: 10.3389/fmicb.2023.1074612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 05/19/2023] [Indexed: 06/29/2023] Open
Abstract
Purpose To explore the genetic characteristics of the IMP-4, NDM-1, OXA-1, and KPC-2 co-producing multidrug-resistant (MDR) clinical isolate, Citrobacter freundii wang9. Methods MALDI-TOF MS was used for species identification. PCR and Sanger sequencing analysis were used to identify resistance genes. In addition to agar dilution, broth microdilution was used for antimicrobial susceptibility testing (AST). We performed whole genome sequencing (WGS) of the strains and analyzed the resulting data for drug resistance genes and plasmids. Phylogenetic trees were constructed with maximum likelihood, plotted using MAGA X, and decorated by iTOL. Results Citrobacter freundii carrying blaKPC-2, blaIMP-4, blaOXA-1, and blaNDM-1 are resistant to most antibiotics, intermediate to tigecycline, and only sensitive to polymyxin B, amikacin, and fosfomycin. The blaIMP-4 coexists with the blaNDM-1 and the blaOXA-1 on a novel transferable plasmid variant pwang9-1, located on the integron In1337, transposon TnAS3, and integron In2054, respectively. The gene cassette sequence of integron In1337 is IntI1-blaIMP-4-qacG2-aacA4'-catB3Δ, while the gene cassette sequence of In2054 is IntI1-aacA4cr-blaOXA-1-catB3-arr3-qacEΔ1-sul1. The blaNDM-1 is located on the transposon TnAS3, and its sequence is IS91-sul-ISAba14-aph (3')-VI-IS30-blaNDM-1-ble-trpF-dsbD-IS91. The blaKPC-2 is located on the transposon Tn2 of plasmid pwang9-1, and its sequence is klcA-korC-ISkpn6-blaKPC-2-ISkpn27-tnpR-tnpA. Phylogenetic analysis showed that most of the 34\u00B0C. freundii isolates from China were divided into three clusters. Among them, wang1 and wang9 belong to the same cluster as two strains of C. freundii from environmental samples from Zhejiang. Conclusion We found C. freundii carrying blaIMP-4, blaNDM-1, blaOXA-1, and blaKPC-2 for the first time, and conducted in-depth research on its drug resistance mechanism, molecular transfer mechanism and epidemiology. In particular, we found that blaIMP-4, blaOXA-1, and blaNDM-1 coexisted on a new transferable hybrid plasmid that carried many drug resistance genes and insertion sequences. The plasmid may capture more resistance genes, raising our concern about the emergence of new resistance strains.
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Affiliation(s)
- Jie Qiao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yingying Chen
- Department of Neurosurgery, Shaoxing People’s Hospital (Shaoxing Hospital, Zhejiang University School of Medicine), Shaoxing, China
| | - Haoyu Ge
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hao Xu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaobing Guo
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ruishan Liu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Chenyu Li
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ruyan Chen
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jianjun Gou
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Mantao Chen
- Department of Neurosurgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Beiwen Zheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Department of Structure and Morphology, Jinan Microecological Biomedicine Shandong Laboratory, Jinan, China
- Research Units of Infectious Diseases and Microecology, Chinese Academy of Medical Sciences, Beijing, China
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Ge H, Qiao J, Zheng J, Xu H, Liu R, Zhao J, Chen R, Li C, Guo X, Zheng B. Emergence and clonal dissemination of KPC-3-producing Pseudomonas aeruginosa in China with an IncP-2 megaplasmid. Ann Clin Microbiol Antimicrob 2023; 22:31. [PMID: 37120531 PMCID: PMC10149002 DOI: 10.1186/s12941-023-00577-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 03/28/2023] [Indexed: 05/01/2023] Open
Abstract
BACKGROUND Despite the global prevalence of Klebsiella pneumoniae Carbapenemase (KPC)-type class A β-lactamases, occurrences of KPC-3-producing isolates in China remain infrequent. This study aims to explore the emergence, antibiotic resistance profiles, and plasmid characteristics of blaKPC-3-carrying Pseudomonas aeruginosa. METHODS Species identification was performed by MALDI-TOF-MS, and antimicrobial resistance genes (ARGs) were identified by polymerase chain reaction (PCR). The characteristics of the target strain were detected by whole-genome sequencing (WGS) and antimicrobial susceptibility testing (AST). Plasmids were analyzed by S1-nuclease pulsed-field gel electrophoresis(S1-PFGE), Southern blotting and transconjugation experiment. RESULTS Five P. aeruginosa strains carrying blaKPC-3 were isolated from two Chinese patients without a history of travelling to endemic areas. All strains belonged to the novel sequence type ST1076. The blaKPC-3 was carried on a 395-kb IncP-2 megaplasmid with a conserved structure (IS6100-ISKpn27-blaKPC-3-ISKpn6-korC-klcA), and this genetic sequence was identical to many plasmid-encoded KPC of Pseudomonas species. By further analyzing the genetic context, it was supposed that the original of blaKPC-3 in our work was a series of mutation of blaKPC-2. CONCLUSIONS The emergence of a multidrug resistance IncP-2 megaplasmid and clonal transmission of blaKPC-3-producing P. aeruginosa in China underlined the crucial need for continuous monitoring of blaKPC-3 for prevention and control of its further dissemination in China.
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Affiliation(s)
- Haoyu Ge
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, College of Medicine, the First Affiliated Hospital, Zhejiang University, Hangzhou, China
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jie Qiao
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, College of Medicine, the First Affiliated Hospital, Zhejiang University, Hangzhou, China
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jiahao Zheng
- Institute of Animal Quarantine, Chinese Academy of Inspection and Quarantine, Beijing, 100176, China
| | - Hao Xu
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, College of Medicine, the First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Ruishan Liu
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, College of Medicine, the First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Junhui Zhao
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ruyan Chen
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chenyu Li
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaobing Guo
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Beiwen Zheng
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, College of Medicine, the First Affiliated Hospital, Zhejiang University, Hangzhou, China.
- Department of Structure and Morphology, Jinan Microecological Biomedicine Shandong Laboratory, Jinan, Shandong, China.
- Research Units of Infectious Diseases and Microecology, Chinese Academy of Medical Sciences, Beijing, China.
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Dong H, Liu Z, Wu Z, Zhang T, Xia Z, Zhao Y, Li Y, Shi J, Wang Z, Li R, Qin S. Characterization of a Conjugative Hybrid Plasmid Coharboring blaKPC-2 and blaIMP-4 in a Klebsiella quasipneumoniae Clinical Isolate. Microbiol Spectr 2023; 11:e0261622. [PMID: 36625668 PMCID: PMC9927271 DOI: 10.1128/spectrum.02616-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Generation of hybrid MDR plasmids accelerated the evolution and transmission of resistance genes. In this study, we characterized a blaKPC-2- and blaIMP-4-coharboring conjugative hybrid plasmid constituted of an IncHI5 plasmid-like region, an IncFII(Yp)/IncFIA plasmid-like region, and a KPN1344 chromosome-like region from a clinical ST852-KL18 Klebsiella quasipneumoniae strain. The blaIMP-4 gene was captured by a novel integron In1965, and the blaKPC-2 gene was located on a new non-Tn4401 group I NTEKPC element. Both blaKPC-2- and blaIMP-4-containing genetic architectures were distinguished from classical structures, highlighting the constant evolution of these genetic elements. IMPORTANCE The emergence of carbapenem-resistant Enterobacterales (CRE) that coexpress serine- and metallo-carbapenemases is a severe threat to the efficacy of ceftazidime-avibactam (CZA), which has been proven to be extremely effective against KPC-producing Enterobacterales strains. Our study described the cooccurrence of KPC-2, a serine β-lactamase, and IMP-4, a metallo-β-lactamase (MBL), on a conjugative hybrid plasmid from a clinical carbapenem-resistant K. quasipneumoniae strain, and it revealed an alternative route for IncHI5 plasmid to evolve by recombining with other plasmids to form a hybrid plasmid. Moreover, this hybrid plasmid can be transferred into other Klebsiella species and stably persist during passage. The propagation of two important carbapenemase genes with a new genetic background using well-evolved plasmids in the clinical setting promotes the emergence of superbugs that require careful monitoring.
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Affiliation(s)
- Huiyue Dong
- School of Pharmaceutical Sciences; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou, Henan, China
| | - Ziyi Liu
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People’s Republic of China
| | - Zhiyao Wu
- School of Pharmaceutical Sciences; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou, Henan, China
| | - Tingting Zhang
- School of Pharmaceutical Sciences; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou, Henan, China
| | - Ziwei Xia
- School of Pharmaceutical Sciences; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou, Henan, China
| | - Yuxin Zhao
- School of Pharmaceutical Sciences; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou, Henan, China
| | - Yan Li
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People’s Republic of China
| | - Jinjin Shi
- School of Pharmaceutical Sciences; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou, Henan, China
| | - Zhiqiang Wang
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People’s Republic of China
| | - Ruichao Li
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu, People’s Republic of China
- Institute of Comparative Medicine, Yangzhou University, Yangzhou, Jiangsu, People’s Republic of China
| | - Shangshang Qin
- School of Pharmaceutical Sciences; Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Zhengzhou University, Zhengzhou, Henan, China
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Jia J, Huang L, Zhang L, Sheng Y, Chu W, Xu H, Xu A. Genomic characterization of two carbapenem-resistant Serratia marcescens isolates causing bacteremia: Emergence of KPC-2-encoding IncR plasmids. Front Cell Infect Microbiol 2023; 13:1075255. [PMID: 36844412 PMCID: PMC9945258 DOI: 10.3389/fcimb.2023.1075255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 01/10/2023] [Indexed: 02/11/2023] Open
Abstract
The occurrence and transmission of carbapenemase-producing-Enterobacterales (CPE) on a global scale has become a major issue. Clinical reports are rarely providing information on the genomic and plasmid features of carbapenem-resistant Serratia marcescens. Our objective was to investigate the resistance and transmission dynamics of two carbapenem-resistant S. marcescens that are resistant to carbapenem and have caused bacteremia in China. Blood specimens were taken from two individuals with bacteremia. Multiplex PCR was employed to identify genes that code for carbapenemase. Antimicrobial susceptibility tests and plasmid analysis were conducted on S. marcescens isolates SM768 and SM4145. The genome of SM768 and SM4145 were completely sequenced using NovaSeq 6000-PE150 and PacBio RS II platforms. Antimicrobial resistance genes (ARGs) were predicted using the ResFinder tool. S1 nuclease pulsed-field gel electrophoresis (S1-PFGE) and southern blotting were employed to analyze plasmids. Two S. marcescens that produced KPC-2 were identified from bloodstream infections. The antimicrobial susceptibility testing demonstrated that both of the isolates had a resistance to various antibiotics. The whole-genome sequence (WGS) and plasmid analysis revealed the presence of bla KPC-2-bearing IncR plasmids and multiple plasmid-borne antimicrobial resistance genes in the isolates. Our comparative plasmid analysis suggested that the two IncR plasmids identified in this study could be derived from a common ancestor. Our findings revealed the emergence of bla KPC-2-bearing IncR plasmid in China, which could be a hindrance to the transmission of KPC-2-producing S. marcescens in clinical settings.
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Affiliation(s)
- Junli Jia
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lisha Huang
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Long Zhang
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanbing Sheng
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Weili Chu
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - 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
| | - Aiguo Xu
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China,*Correspondence: Aiguo Xu,
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9
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Graham GD, Jeray KJ. Posttraumatic Patellar Osteomyelitis due to Raoultella ornithinolytica: A Case Report. JBJS Case Connect 2023; 13:01709767-202303000-00039. [PMID: 36795860 DOI: 10.2106/jbjs.cc.22.00590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
CASE A 59-year-old woman sustained a comminuted patellar fracture after a fall from standing. The injury was treated with open reduction and internal fixation 7 days from initial injury. Seven weeks postoperatively, she developed a swollen, painful, and draining knee. Workup demonstrated Raoultella ornithinolytica. She underwent surgical debridement and antibiotic treatment. CONCLUSION This is an unusual presentation of patellar osteomyelitis with R. ornithinolytica. Early identification, treatment with appropriate antimicrobial therapy, and consideration of surgical debridement are important in patients presenting with pain, swelling, and erythema after surgery.
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Affiliation(s)
- George D Graham
- Department of Orthopaedic Surgery, Prisma Health - Upstate, Greenville, South Carolina
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10
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Goggins A, Lykins J, Aston A, Shaw J. Acute cholecystitis secondary to Raoultella ornithinolytica infection, complicated by sepsis, gallbladder perforation, hepatic abscess and bacteraemia. BMJ Case Rep 2022; 15:e250766. [PMID: 36581355 PMCID: PMC9806088 DOI: 10.1136/bcr-2022-250766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Herein, a case of an immunocompromised patient in his early 70s is discussed who presented with clinical signs and symptoms compatible with sepsis from an intra-abdominal source and who was found to have blood cultures positive for the encapsulated Gram-negative pathogen Raoultella ornithinolytica, with the source of infection determined, via imaging, to be a case of acute cholecystitis complicated by gallbladder perforation, multiple pericholecystic and hepatic abscesses, and persistent bacteraemia. To our knowledge, this represents the first described case of cholecystitis and gallbladder perforation directly attributed to this species, and highlights both the pathogen's capacity to cause severe disease as well as the utility of a multidisciplinary approach to achieve optimal patient outcome.
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Affiliation(s)
- Alexander Goggins
- Department of Internal Medicine, Virginia Commonwealth University Health System, Richmond, Virginia, USA
| | - Joseph Lykins
- Department of Internal Medicine, Virginia Commonwealth University Health System, Richmond, Virginia, USA
- Emergency Medicine, Virginia Commonwealth University Health System, Richmond, Virginia, USA
| | - Adam Aston
- Department of Internal Medicine, Virginia Commonwealth University Health System, Richmond, Virginia, USA
| | - Jawaid Shaw
- Department of Internal Medicine, Virginia Commonwealth University Health System, Richmond, Virginia, USA
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11
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Chen C, Shi Q, Hu X, Liu X, Liu Y, Liu R. Co-Existence of KPC-2, LAP-2, and CTX-M-65 in an ST1469 Multidrug-Resistant Klebsiella pneumoniae Strain in China. Infect Drug Resist 2022; 15:6731-6737. [DOI: 10.2147/idr.s392063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 11/14/2022] [Indexed: 11/23/2022] Open
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12
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Liu H, Wang D, Tang M, Jia P, Huo Y, Wei E, Xu H, Chi X, Wang H. Genetic Characterization of Enterobacter hormaechei Co-Harboring blaNDM-1 and mcr-9 Causing Upper Respiratory Tract Infection. Infect Drug Resist 2022; 15:5035-5042. [PMID: 36068833 PMCID: PMC9441144 DOI: 10.2147/idr.s367073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Accepted: 08/04/2022] [Indexed: 11/28/2022] Open
Abstract
Purpose With the spread of multiple drug-resistant bacteria, blaNDM-1 and mcr-9 have been detected in various bacteria worldwide. However, the simultaneous detection of blaNDM-1 and mcr-9 in Enterobacter hormaechei has been rarely reported. This study identified an E. hormaechei strain carrying both blaNDM-1 and mcr-9. We investigated the genetic characteristics of these two resistance genes in detail, elucidating various potential mechanisms by which they may be transmitted. Methods Bacterial genomic features and possible origins were assessed by whole-genome sequencing (WGS) with Illumina and PacBio platforms and phylogenetic analysis. Subsequent investigations were performed, including antimicrobial susceptibility testing and multilocus sequence typing (MLST). Results We isolated an E. hormaechei strain DY1901 carrying both blaNDM-1 and mcr-9 from the sputum sample. Susceptibility testing showed that the isolate was multidrug-resistant. Multiple antibiotic resistance genes and virulence genes are widely distributed in DY1901. S1-PFGE, Southern blotting, and plasmid replicon typing showed that DY1901 carried four plasmids. The plasmid carrying mcr-9 was 259Kb in size and belonged to IncHI2, while the plasmid carrying blaNDM-1 was 45Kb in length and belonged to IncX3. Conclusion The E. hormaechei strain isolated in this study has a broad antibiotic resistance spectrum, posing a challenge to clinical treatment. Plasmids carrying mcr-9 are fusion plasmids, and those taking NDM are widely disseminated in China, suggesting that we should conduct routine genomic surveillance on such plasmids to curb the spread of drug-resistant bacteria in the region.
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Affiliation(s)
- Huiqiong Liu
- Department of Pediatric Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People’s Republic of China
| | - Dao Wang
- Department of Pediatric Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People’s Republic of China
| | - Miaomiao Tang
- Department of Pediatric Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People’s Republic of China
| | - Peisheng Jia
- Department of Pediatric Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People’s Republic of China
| | - Yufeng Huo
- Department of Pediatric Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People’s Republic of China
| | - Erhu Wei
- Department of Pediatric Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People’s Republic of China
| | - 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, People’s Republic of China
| | - Xiaohui Chi
- 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, People’s Republic of China
| | - Huaili Wang
- Department of Pediatric Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, People’s Republic of China
- Correspondence: Huaili Wang, Department of Pediatric Intensive Care Unit, The First Affiliated Hospital of Zhengzhou University, No. 1 Longhu East Zhonghuan Road, Zhengzhou, 450052, People’s Republic of China, Tel +86-371-66271057, Email
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13
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Liu R, Xu H, Guo X, Liu S, Qiao J, Ge H, Zheng B, Gou J. Genomic Characterization of Two Escherichia fergusonii Isolates Harboring mcr-1 Gene From Farm Environment. Front Cell Infect Microbiol 2022; 12:774494. [PMID: 35719362 PMCID: PMC9204285 DOI: 10.3389/fcimb.2022.774494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 04/26/2022] [Indexed: 11/30/2022] Open
Abstract
The prevalence and transmission of mobile colistin resistance (mcr) genes have led to a severe threat to humans and animals. Escherichia fergusonii is an emerging pathogen which is closely related to a variety of diseases. However, the report of mcr genes harboring E. fergusonii is still rare. One study in Brazil reported the E. fergusonii isolates with IncHI2-type plasmids harboring mcr-1. A Chinese study reported two strains carrying mcr-1 gene with the same plasmid type IncI2. Here, we identified two strains of E. fergusonii carrying mcr-1 gene from farm environments with IncX4-type and IncI2-type plasmids, respectively. To our best knowledge, this is the first report about mcr-1 gene located on IncX4-type plasmid in E. fergusonii. We investigate the resistance mechanism of colistin-resistant Escherichia fergusonii strains 6S41-1 and 5ZF15-2-1 and elucidate the genetic context of plasmids carrying mcr-1 genes. In addition, we also investigated chromosomal mutations mediated colistin resistance in these two strains. Species identification was performed using MALDI-TOF MS and 16S rRNA gene sequencing. The detection of mcr-1 gene was determined by PCR and Sanger sequencing. S1-pulsed-field gel electrophoresis (PFGE), Southern blotting, antimicrobial susceptibility testing, conjugation experiments, complete genome sequencing, and core genome analysis were conducted to investigate the characteristics of isolates harboring mcr-1. The mcr-1 genes on two strains were both plasmids encoded and the typical IS26-parA-mcr-1-pap2 cassette was identified in p6S41-1 while a nikA-nikB-mcr-1 locus sites on the conjugative plasmid p5ZF15-2-1. In addition, Core genome analysis reveals that E. fergusonii 6S41-1 and 5ZF15-2-1 have close genetic relationships. The mcr-1 gene is located on conjugative IncI2-type plasmid p5ZF15-2-1, which provides support for its further transmission. In addition, there’s the possibility of mcr-1 spreading to humans through farm environments and thereby threatening public health. Therefore, continuous monitoring and investigations of mcr-1 among Enterobacteriaceae in farm environments are necessary to control the spread.
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Affiliation(s)
- Ruishan Liu
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Hao Xu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaobing Guo
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shuxiu Liu
- Department of Laboratory Medicine, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jie Qiao
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Haoyu Ge
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Beiwen Zheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jianjun Gou
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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14
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Xu S, Tu J, Zhang L, Chen Y, Dong X, Chi X, Xu H. Detection of NDM-1-Positive Aeromonas caviae from Bacteremia by Using Whole-Genome Sequencing. Infect Drug Resist 2022; 15:2835-2841. [PMID: 35677527 PMCID: PMC9169836 DOI: 10.2147/idr.s360353] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 05/23/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose Nosocomial infections caused by New Delhi metallo-β-lactamase (NDM)-producing bacteria are prevalent worldwide. However, such diseases caused by NDM-producing Aeromonas caviae had never been reported. Our study aimed to elucidate the genomic characteristics of NDM-1-producing A. caviae isolated from hospital patients. Methods Bacterial genomic features and possible origins were assessed by whole-genome sequencing (WGS) and phylogenetic analysis. Subsequent investigations include antimicrobial susceptibility testing and multilocus sequence typing (MLST). Results We identified here two NDM-1-producing A. caviae isolates from bacteremia. Susceptibility testing showed that two isolates were multi-drug resistant and shared a similar resistance profile and were only sensitive to amikacin and trimethoprim/sulfamethoxazole. Both A. caviae isolates carry the carbapenem resistance gene blaNDM-1 and also have antibiotic resistance genes such as β-lactams, AmpC enzymes, macrolides, aminoglycosides, and quinolones. S1-PFGE and Southern blot analysis were negative. Whole-genome sequencing and comparative analysis revealed that these two isolates shared a close relationship. Conclusion To the best of our knowledge, this work describes the first detection of non-plasmid encoded blaNDM-1 in A. caviae. The A. caviae isolated in this study has a broad drug resistance spectrum. Phenotypic and molecular analysis indicated the two isolates belong to the same clone. Routine genomic surveillance of this species is now necessary to effectively curb the further dissemination of carbapenem-resistant bacteria in the region.
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Affiliation(s)
- Shuguang Xu
- Department of Pulmonary and Critical Care Medicine, Ningbo Medical Center Lihuili Hospital, Ningbo, People’s Republic of China
| | - Jinjing Tu
- Department of Pulmonary and Critical Care Medicine, Ningbo Medical Center Lihuili Hospital, Ningbo, People’s Republic of China
| | - Liang Zhang
- Department of Pulmonary and Critical Care Medicine, Ningbo Medical Center Lihuili Hospital, Ningbo, People’s Republic of China
| | - Yinv Chen
- Department of Pulmonary and Critical Care Medicine, Ningbo Medical Center Lihuili Hospital, Ningbo, People’s Republic of China
| | - Xiaoqi Dong
- Department of Pulmonary and Critical Care Medicine, Ningbo Medical Center Lihuili Hospital, Ningbo, People’s Republic of China
| | - Xiaohui Chi
- 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, People’s Republic of China
| | - 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, People’s Republic of China
- Correspondence: Hao Xu; Xiaohui Chi, Email ;
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15
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Ma X, Lv X, Feng S, Liu R, Fu H, Gao F, Xu H. Genetic Characterization of an ST5571 Hypervirulent Klebsiella pneumoniae Strain Co-Producing NDM-1, MCR-1, and OXA-10 Causing Bacteremia. Infect Drug Resist 2022; 15:2293-2299. [PMID: 35517899 PMCID: PMC9064484 DOI: 10.2147/idr.s360715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 04/12/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose To investigate the phenotypic and genomic characteristics of the multi-drug resistant and hypervirulent Klebsiella pneumoniae strain recovered from bacteremia. Methods Antimicrobial susceptibility testing (AST) was performed by the microdilution method. Antimicrobial resistance genes, virulence-associated genes, multilocus sequence typing (MLST), and plasmid replicon were characterized by next-generation sequencing (NGS) and nanopore sequencing. S1 nuclease-pulsed field gel electrophoresis (S1-PFGE) and Southern blotting were performed to characterize the plasmid profile. Results The hypervirulent colistin- and carbapenem-resistant K. pneumoniae strain DY2009 was identified as ST5571, co-carrying mcr-1, bla NDM-1, and bla OXA-10. In silico analysis found that it was K2 serotype. AST results revealed that DY2009 was resistant to carbapenems, cephalosporins, ciprofloxacin, chloramphenicol, and colistin but remained susceptible to aztreonam, gentamicin, amikacin, and tigecycline. Through the whole-genome analysis, a variety of virulence determinants were identified, including rmpA. Plasmid analysis confirmed that the mcr-1 and bla NDM-1 gene harbored a ~33 kb IncX4 plasmid and a ~44 kb IncX3 plasmid. In contrast, bla OXA-10 was encoded by chromosome. Conclusion To the best of our knowledge, we first report the clinical hypervirulent K. pneumoniae isolate co-producing MCR-1, NDM-1, and OXA-10 causing bacteremia. We found that mcr-1 and bla NDM-1 genes were located on two self-conjugative epidemic plasmids, contributing to the widespread MCR-1 and NDM-1 in China. The results of this work improve our understanding of the genetic background of colistin- and carbapenem-resistant K. pneumoniae isolate from bacteremia and the resistance mechanisms. Our findings highlight the urgent need for infection control of such strain to prevent it from becoming an extensive-drug resistant clone.
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Affiliation(s)
- Xiaolong Ma
- Department of Respiratory Medicine, the First Hospital of Jiaxing (Affiliated Hospital of Jiaxing University), Jiaxing, People’s Republic of China
| | - Xiaodong Lv
- Department of Respiratory Medicine, the First Hospital of Jiaxing (Affiliated Hospital of Jiaxing University), Jiaxing, People’s Republic of China
| | - Sihan Feng
- Department of Respiratory Medicine, the First Hospital of Jiaxing (Affiliated Hospital of Jiaxing University), Jiaxing, People’s Republic of China
| | - Ruishan Liu
- 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, People’s Republic of China
- Department of Laboratory Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Hao Fu
- 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, People’s Republic of China
| | - Feng Gao
- Department of Respiratory Medicine, the First Hospital of Jiaxing (Affiliated Hospital of Jiaxing University), Jiaxing, People’s Republic of China
| | - 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, People’s Republic of China
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Zeng Z, Yang J, Gu J, Liu Z, Hu J, Li X, Chen X, Sun Z, Li J. Prevalence and antimicrobial susceptibility of CTX-M-type-producing Escherichia coli from a wildlife zoo in China. Vet Med Sci 2022; 8:1294-1299. [PMID: 35182454 PMCID: PMC9122397 DOI: 10.1002/vms3.773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Background Wildlife zoos provide the opportunity for children and adults to interact with animals, However, it's unknown that the risk of contact with animals, which carried zoonotic pathogens and antimicrobial resistant bacteria. Objectives This study aimed to investigate the prevalence and antimicrobial susceptibility of extended‐spectrum β‐lactamases Escherichia coli (ESBLs‐EC) from a wildlife zoo in China. Methods A total of 93 wildlife faecal samples were collected from a wildlife zoo. Agar dilution method was used to determine the resistant phenotype. Whole genomes sequencing and bioinformatic analysis were employed to evaluate the molecular typing and genetic relationships of ESBLs‐EC. Results A total of 23 CTX‐M‐positive ESBLs‐EC were isolated from swan (n = 14), squirrel monkey (n = 5), black hat hanging monkey (n = 2), gibbon monkey (n = 1) and phoenicopteridae (n = 1) respectively. All ESBLs‐EC strains were resistant to cefotaxime, tetracycline, ciprofloxacin and trimethoprim‐sulfamethoxazole, but susceptible to colistin, tigecycline, meropenem and amikacin. By screening whole genome sequences, ESBLs‐EC strains main carried blaCTX‐M‐55 (34.8%, 8/23) and blaCTX‐M‐14 (26.0%, 6/23), following by blaCTX‐M‐27 (21.7%, 5/23), blaCTX‐M‐15 (13.0%, 3/23) and blaCTX‐M‐121 (4.3%, 1/23). ESBLs‐EC strains mainly belonged to phylogroup A (60.9%, 14/23), and ST48, ST746 and ST616 (3 strains respectively, 13.0%) were major ST types. Core genome‐based single nucleotide polymorphism (SNP) analysis suggested that strains from the swan, over the phylogenetic tree, have a closer genetic relationship with strains from other animals (black hat hanging monkey, gibbon monkey, phoenicopteridae and squirrel monkey). Conclusions CTX‐M type ESBLs‐EC can transmit between animals in wildlife zoos, which may be a risk of spread to animal keepers, veterinarians and visitors when contact with animals. Our study provides that the importance of hygiene measures to minimise the risk of transmission of ESBLs‐EC to visitors in wildlife zoos.
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Affiliation(s)
- Ziyue Zeng
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China.,Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha, Hunan, China
| | - Jie Yang
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China.,Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha, Hunan, China
| | - Jinrong Gu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China.,Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha, Hunan, China
| | - Zhihong Liu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China.,Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha, Hunan, China
| | - Jufang Hu
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China.,Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha, Hunan, China
| | | | - Xiaojun Chen
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China.,Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha, Hunan, China
| | - Zhiliang Sun
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China.,Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha, Hunan, China
| | - Jiyun Li
- College of Veterinary Medicine, Hunan Agricultural University, Changsha, Hunan, China.,Hunan Engineering Technology Research Center of Veterinary Drugs, Hunan Agricultural University, Changsha, Hunan, China
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Bai Y, Shao C, Hao Y, Wang Y, Jin Y. Using Whole Genome Sequencing to Trace, Control and Characterize a Hospital Infection of IMP-4-Producing Klebsiella pneumoniae ST2253 in a Neonatal Unit in a Tertiary Hospital, China. Front Public Health 2021; 9:755252. [PMID: 34976919 PMCID: PMC8715938 DOI: 10.3389/fpubh.2021.755252] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 11/15/2021] [Indexed: 12/31/2022] Open
Abstract
Background: The purpose of this study is to use whole genome sequencing (WGS) combined with epidemiological data to track a hospital infection of the carbapenem-resistant Klebsiella pneumoniae (CRKP), which affected 3 neonatal patients in the neonatal intensive care unit (NICU). Methods: The minimum inhibitory concentrations for the antimicrobial agents were determined according to the guidelines of the Clinical and Laboratory Standards Institute. Beta-lactamases were investigated using the polymerase chain reaction and DNA sequencing. The transferability of the plasmid was investigated by a conjugation experiment. The clonal relationships were evaluated using multilocus sequence typing (MLST) and pulsed-field gel electrophoresis (PFGE). WGS and single nucleotide polymorphisms (SNPs) analysis were performed on the CRKP isolates to investigate how the infection might progress. Results: Nine CRKP isolates were obtained from the NICU, seven from three patients, one from a duster cloth and one from the hand of a nurse, they all harbored blaIMP-4. Other resistance genes including blaKPC-2, blaIMP-4, blaSHV-1, blaTEM-1, blaCTX-M-15, and blaDHA-1 were also detected. PFGE analysis showed that IMP-4-producing K. pneumoniae were clonally related, and MLST assigned them to a new sequence type 2253. The SNP variations throughout the genome divided the 9 strains into three clades. Clade 1 comprised 7 strains (K1- K2 and K4-K8), whereas clade 2 and 3 consisted of only one strain each: K3 and K9, respectively.The sputum isolate K3 from patient 3 was the most distinct one differing from the other eight isolates by 239-275 SNPs. Conclusions: This is a report of using WGS to track a hospital infecion of IMP-4-producing K. pneumoniae ST2253 among neonates. Nosocomial surveillance systems are needed to limit the spread of the infection caused by these pathogens resulting from the environmental exposure in NICUs.
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Huang F, Li S, Lou L, Mo J, Xu H. Comparative Genomic Analysis and Phenotypic Characterization of Bronchoscope-Associated Klebsiella aerogenes. Pol J Microbiol 2021; 70:409-412. [PMID: 34584536 PMCID: PMC8459003 DOI: 10.33073/pjm-2021-038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 07/21/2021] [Accepted: 08/04/2021] [Indexed: 11/05/2022] Open
Abstract
Bronchoscopes have been linked to outbreaks of nosocomial infections. The phenotypic and genomic profiles of bronchoscope-associated Klebsiella aerogenes isolates are largely unknown. In this work, a total of 358 isolates and 13 isolates were recovered from samples after clinical procedures and samples after decontamination procedures, respectively, over the five months. Antimicrobial susceptibility testing found seven K. aerogenes isolates exhibiting a low-level resistance to antimicrobial agents. Among seven K. aerogenes isolates, we found five sequence types (STs) clustered into three main clades. Collectively, this study described for the first time the phenotypic and genomic characteristics of bronchoscope-associated K. aerogenes.
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Affiliation(s)
- Fang Huang
- Disinfection and Sterilization Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Shuang Li
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,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
| | - Lan Lou
- Disinfection and Sterilization Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Junjun Mo
- Disinfection and Sterilization Center, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - 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
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19
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Appel TM, Quijano-Martínez N, De La Cadena E, Mojica MF, Villegas MV. Microbiological and Clinical Aspects of Raoultella spp. Front Public Health 2021; 9:686789. [PMID: 34409007 PMCID: PMC8365188 DOI: 10.3389/fpubh.2021.686789] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 07/09/2021] [Indexed: 11/13/2022] Open
Abstract
The genus Raoultella was established in 2001. Species of Raoultella and Klebsiella share many ecological, biochemical, clinical, and microbiological features. Given the shortcomings of available technology for species identification in the clinical microbiology laboratory, are practically indistinguishable. Since the late 2000s there has been an increase in case reports of human Raoultella infections. Therefore, several authors are postulating that Raoultella spp. are rare and/or emerging pathogens. Conclusions:Raoultella spp. are very similar to Klebsiella spp. The epidemiology and the clinical relevance of the human Raoultella spp. infections is uncertain and further studies are required. The previous difficulties in the identification of Raoultella spp. and the introduction of more precise identification techniques may explain the recent increase in the number of case reports. Raoultella spp. might be rather underdiagnosed than rare or emerging pathogens.
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Affiliation(s)
- Tobias M Appel
- Klinik für Innere Medizin II, Universitätsklinikum Jena, Jena, Germany.,Grupo de Resistencia Antimicrobiana y Epidemiología Hospitalaria, Universidad El Bosque, Bogotá, Colombia
| | | | - Elsa De La Cadena
- Grupo de Resistencia Antimicrobiana y Epidemiología Hospitalaria, Universidad El Bosque, Bogotá, Colombia
| | - María F Mojica
- Grupo de Resistencia Antimicrobiana y Epidemiología Hospitalaria, Universidad El Bosque, Bogotá, Colombia
| | - María Virginia Villegas
- Grupo de Resistencia Antimicrobiana y Epidemiología Hospitalaria, Universidad El Bosque, Bogotá, Colombia
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20
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Wang M, Fan Y, Liu P, Liu Y, Zhang J, Jiang Y, Zhou C, Yang L, Wang C, Qian C, Yuan C, Zhang S, Zhang X, Yin Z, Mu H, Du Y. Genomic insights into evolution of pathogenicity and resistance of multidrug-resistant Raoultella ornithinolytica WM1. Ann N Y Acad Sci 2021; 1497:74-90. [PMID: 33786847 DOI: 10.1111/nyas.14595] [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: 12/13/2020] [Revised: 02/20/2021] [Accepted: 03/03/2021] [Indexed: 12/14/2022]
Abstract
Raoultella ornithinolytica is a poorly understood opportunistic pathogen, and the underlying mechanisms of its multidrug resistance and pathogenicity have not yet been comprehensively investigated. The multidrug-resistant (MDR) strain WM1 was isolated from the blood of a male patient in Tianjin, China, in 2018. Here, we describe the complete genome and provide a genomic analysis of R. ornithinolytica WM1. The isolate was resistant to all tested antimicrobials except amikacin, tobramycin, and tigecycline. Two plasmids, pWM1-1 (IncHI5) and pWM1-2 (IncR), carried multidrug-resistance regions. A large antimicrobial resistance island region resided on pWM1-1 and exhibited mosaic structures resulting from the acquisition of complex integrations of variable regions, including genes conferring resistance to multiple classes of antimicrobials. Moreover, WM1 possessed virulence-related elements that encode several virulence factors, including type I fimbriae, Escherichia coli common pilus, type II and VI secretion systems, yersiniabactin, enterobactin, and surface polysaccharide, indicating pathogenic potential. Furthermore, the core genome phylogeny and pan-genome analyses revealed extensive genetic diversity. Our analysis indicates the need for stringent infection control, antimicrobial stewardship, periodic resistance monitoring, and rational medication to address potential threats posed by MDR R. ornithinolytica strains.
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Affiliation(s)
- Meng Wang
- Department of Clinical Laboratory, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Yu Fan
- TEDA School of Biological Sciences and Biotechnology, Nankai University, Tianjin, 300192, China
| | - Ping Liu
- Department of Clinical Laboratory, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Yehua Liu
- Department of Clinical Laboratory, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Jianlei Zhang
- Department of Clinical Laboratory, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Yan Jiang
- Department of Clinical Laboratory, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Chunlei Zhou
- Department of Clinical Laboratory, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Lei Yang
- Department of Clinical Laboratory, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Ce Wang
- Department of Clinical Laboratory, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Chengqian Qian
- TEDA School of Biological Sciences and Biotechnology, Nankai University, Tianjin, 300192, China
| | - Chao Yuan
- Department of Toxicology and Sanitary Chemistry, School of Public Health, Tianjin Medical University, Tianjin, China
| | - Si Zhang
- TEDA School of Biological Sciences and Biotechnology, Nankai University, Tianjin, 300192, China
| | - Xiaohang Zhang
- Novo Nordisk (China) Pharmaceuticals Co. Ltd, Tianjin, China
| | - Zhiqiu Yin
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Tai'an, Shandong, 271018, China
| | - Hong Mu
- Department of Clinical Laboratory, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin, China
| | - Yuhui Du
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, 100081, China
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21
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Abd El-Ghany WA. A spotlight on Raoultella ornithinolytica: A newly emerging life-threatening zoonotic pathogen. INTERNATIONAL JOURNAL OF ONE HEALTH 2021. [DOI: 10.14202/ijoh.2021.1-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The genus Raoultella contains Raoultella ornithinolytica (R. ornithinolytica), which was previously named as Klebsiella ornithinolytica. R. ornithinolytica is a Gram-negative bacillus that belongs to the family Enterobacteriaceae. This pathogen is normally present in aquaculture, and it has been isolated from fish, insects, and wild and domestic birds. Seafood and poultry products are incriminated as sources of R. ornithinolytica infection. Community-acquired human infection with R. ornithinolytica is common. This infection is commonly associated with sepsis, bacteremia, food poisoning, purities, and urinary and respiratory tracts' infections. Rapid acquired resistance of R. ornithinolytica strains is common, and it is related to the development of resistant genes. R. ornithinolytica is considered as a newly emerging life-threatening pathogen world-wide. Hence, it is very important to determine the role of animals and birds in the epidemiological situation of this pathogen as well as the detection of antibiotic resistance genes before treatment.
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Affiliation(s)
- Wafaa A. Abd El-Ghany
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, Egypt
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22
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Stool Samples of Acute Diarrhea Inpatients as a Reservoir of ST11 Hypervirulent KPC-2-Producing Klebsiella pneumoniae. mSystems 2020; 5:5/3/e00498-20. [PMID: 32576652 PMCID: PMC7311318 DOI: 10.1128/msystems.00498-20] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
China has been experiencing a rapid increase in the number of nosocomial infections caused by carbapenem-resistant Klebsiella pneumoniae ST11 (ST11-CRKP) for decades. The emergence of hypervirulent ST11-CRKP (ST11-CR-HvKP) strains is expected to become a serious public health issue in China, considering that carbapenem resistance and virulence have converged in an epidemic clone. K. pneumoniae strains that colonize the human intestinal tract may become a reservoir of virulence and carbapenemase-encoding genes. Here, we first characterized the genotypes and antimicrobial phenotypes of ST11-CR-HvKP strains isolated from diarrheal stool samples of inpatients in Zhejiang Province, China. Active surveillance approaches based on the findings of the present study should be implemented, particularly in intensive care units, to combat the spread of ST11-CR-HvKP and to improve treatment. The emergence and spread of carbapenem-resistant hypervirulent Klebsiella pneumoniae sequence type 11 (ST11-CR-HvKP) in China are a great concern in the public health community. However, the underlying mechanism that enables its wide dissemination in China remains unclear. Here, we investigated the prevalence of carriage of carbapenemase-producing Enterobacteriaceae (CPE) among inpatients with diarrhea in a teaching hospital over 1 year to identify ST11-CR-HvKP reservoirs and to understand the genetic background and plasmid profiles of these pathogens. As assessed by stool analysis, the CPE colonization rate (12.4%) among the inpatients with diarrhea was high (12.4%). Antibiotic exposure, surgical history, and CPE positivity were correlated. Genomic investigation of 65 carbapenem-resistant K. pneumoniae isolates indicated a shared bacterial population in various wards. According to maximum likelihood phylogenetic tree analysis, these isolates were partitioned into three major clades. Analysis of the wzi locus revealed three different K types (KL105, KL47, and K64) among the ST11 isolates, indicating the genetic diversity of these isolates. Genetic and sequence mapping revealed the complexity of virulence and resistance plasmid sets harbored by the isolates. These observations indicate that the dissemination of resistant bacteria is more complex than initially anticipated and possibly involves multiple K. pneumoniae ST11 lineages and a variety of virulence plasmids. Collectively, we show for the first time that stool may be a source of ST11-CR-HvKP isolates. Furthermore, the findings reveal the silent dissemination of ST11-CR-HvKP bacteria in Zhejiang Province, China. Future investigations are warranted to determine the association between rectal colonization by ST11-CR-HvKP and clinical infections. IMPORTANCE China has been experiencing a rapid increase in the number of nosocomial infections caused by carbapenem-resistant Klebsiella pneumoniae ST11 (ST11-CRKP) for decades. The emergence of hypervirulent ST11-CRKP (ST11-CR-HvKP) strains is expected to become a serious public health issue in China, considering that carbapenem resistance and virulence have converged in an epidemic clone. K. pneumoniae strains that colonize the human intestinal tract may become a reservoir of virulence and carbapenemase-encoding genes. Here, we first characterized the genotypes and antimicrobial phenotypes of ST11-CR-HvKP strains isolated from diarrheal stool samples of inpatients in Zhejiang Province, China. Active surveillance approaches based on the findings of the present study should be implemented, particularly in intensive care units, to combat the spread of ST11-CR-HvKP and to improve treatment.
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23
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Hajjar R, Ambaraghassi G, Sebajang H, Schwenter F, Su SH. Raoultella ornithinolytica: Emergence and Resistance. Infect Drug Resist 2020; 13:1091-1104. [PMID: 32346300 PMCID: PMC7167274 DOI: 10.2147/idr.s191387] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 12/13/2019] [Indexed: 11/23/2022] Open
Abstract
Raoultella ornithinolytica is an encapsulated Gram-negative, oxidase-negative, catalase-positive, aerobic, non-motile rod that belongs to the Enterobacteriaceae family. This bacterium was initially classified in the genus Klebsiella as Klebsiella ornithinolytica, until the creation of the genus Raoultella in 2001. R. ornithinolytica is usually found in water environments and soil, and due to its ability to convert histidine to histamine, it has been associated with histamine poisoning in humans. R. ornithinolytica is an emerging entity in human infections, with several reports of virulent infections in comorbid at-risk patients. Increasing reports are potentially due to better and more precise identification tools. The objective of this article is to provide a comprehensive review of reported cases of R. ornithinolytica infections, the emergent virulence of described multiresistant strains, and an overview of currently used identification methods.
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Affiliation(s)
- Roy Hajjar
- Digestive Surgery Service, Department of Surgery, Centre Hospitalier de l'Université de Montréal (CHUM), Montréal, Québec, Canada
| | - Georges Ambaraghassi
- Department of Medical Microbiology and Infectious Diseases, Centre Hospitalier de l'Université de Montréal (CHUM), Montréal, Québec, Canada
| | - Herawaty Sebajang
- Digestive Surgery Service, Department of Surgery, Centre Hospitalier de l'Université de Montréal (CHUM), Montréal, Québec, Canada
| | - Frank Schwenter
- Digestive Surgery Service, Department of Surgery, Centre Hospitalier de l'Université de Montréal (CHUM), Montréal, Québec, Canada
| | - Shih-Hann Su
- Department of Medical Microbiology and Infectious Diseases, Centre Hospitalier de l'Université de Montréal (CHUM), Montréal, Québec, Canada
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24
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Gou JJ, Liu N, Guo LH, Xu H, Lv T, Yu X, Chen YB, Guo XB, Rao YT, Zheng BW. Carbapenem-Resistant Enterobacter hormaechei ST1103 with IMP-26 Carbapenemase and ESBL Gene bla SHV-178. Infect Drug Resist 2020; 13:597-605. [PMID: 32110070 PMCID: PMC7039083 DOI: 10.2147/idr.s232514] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 01/30/2020] [Indexed: 12/14/2022] Open
Abstract
Purpose To investigate the occurrence and genetic characteristics of the blaIMP-26-positive plasmid from a multidrug-resistant clinical isolate, Enterobacter hormaechei L51. Methods Species identification was determined by MALDI-TOF MS and Sanger sequencing. Antimicrobial susceptibility testing was performed by the agar dilution and broth microdilution. Whole-genome sequencing was conducted using Illumina HiSeq 4000-PE150 and PacBio Sequel platforms, and the genome was annotated by the RAST annotation server. The ANI analysis of genomes was performed using OAT. Phylogenetic reconstruction and analyses were performed using the Harvest suite based on the core-genome SNPs of 61 publicly available E. hormaechei genomes. Results The E. hormaechei L51 genome consists of a 5,018,729 bp circular chromosome and a 343,918 bp conjugative IncHI2/2A plasmid pEHZJ1 encoding blaIMP-26 which surrounding genetic context was intI1-blaIMP-26-ltrA-qacE∆1-sul1. A new sequence type (ST1103) was assigned for the isolate L51 which was resistant to cephalosporins, carbapenems, but sensitive to piperacillin-tazobactam, amikacin, tigecycline, trimethoprim-sulfamethoxazole and colistin. Phylogenetic analysis demonstrated that E. hormaechei L51 belonged to the same subspecies as the reference strain E. hormaechei SCEH020042, however 18,248 divergent SNP were identified. Resistance genes in pEHZJ1 including aac(3)-IIc, aac(6ʹ)-IIc, blaSHV-178, blaDHA-1, blaTEM-1, blaIMP-26, ereA2, catII, fosA5, qnrB4, tet(D), sul1 and dfrA19. Conclusion In our study, we identified a conjugative IncHI2/2A plasmid carrying blaIMP-26 and blaSHV-178 in E. hormaechei ST1103, a novel multidrug-resistant strain isolated from China, and describe the underlying resistance mechanisms of the strain and detailed genetic context of mega plasmid pEHZJ1.
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Affiliation(s)
- Jian-Jun Gou
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Na Liu
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China.,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 310003, People's Republic of China
| | - Li-Hua 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 310003, People's Republic of China
| | - 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 310003, People's Republic of China
| | - Tao Lv
- 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 310003, People's Republic of 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 310003, People's Republic of China
| | - Yun-Bo Chen
- 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 310003, People's Republic of China
| | - Xiao-Bing Guo
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Yu-Ting Rao
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, People's Republic of China
| | - Bei-Wen 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 310003, People's Republic of China
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25
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Coexistence of the bla NDM-1-carrying plasmid pWLK-NDM and the bla KPC-2-carrying plasmid pWLK-KPC in a Raoultella ornithinolytica isolate. Sci Rep 2020; 10:2360. [PMID: 32047243 PMCID: PMC7012882 DOI: 10.1038/s41598-020-59341-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 01/23/2020] [Indexed: 01/13/2023] Open
Abstract
To date, blaNDM and blaKPC genes have been found predominantly in clinical settings around the world. In contrast, bacteria harbouring these two genes from natural environments are relatively less well studied compared to those found in clinical settings. In this study, a carbapenem-resistant Raoultella ornithinolytica strain, WLK218, was isolated from urban river sediment in Zhengzhou City, Henan Province, China. This isolate was subjected to PCR and antimicrobial susceptibility testing. PCR results showed that this isolate was positive for both the blaNDM-1 and blaKPC-2 genes. The antimicrobial susceptibility testing results showed that this isolate exhibited resistance or intermediate resistance to all the antibiotics tested except for streptomycin (susceptible) and cefepime (susceptible-dose dependent). The complete genome sequence of the WLK218 isolate was then determined by using a combination of the PacBio and Illumina sequencing technologies. The de novo assembly of the genome generated one chromosome and six plasmids. Among the six plasmids, the blaNDM-1 gene was carried on the IncX3 plasmid pWLK-NDM, while the blaKPC-2 gene was located on the untypeable plasmid pWLK-KPC. This is the first report of an environmental Raoultella ornithinolytica isolate co-harbouring the blaNDM-1 and blaKPC-2 genes.
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26
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Emergence of KPC-2-Producing Raoultella ornithinolytica Isolated from a Hospital Wastewater Treatment Plant. Antimicrob Agents Chemother 2020; 64:AAC.01983-19. [PMID: 31712216 DOI: 10.1128/aac.01983-19] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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27
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Wang S, Xu L, Chi X, Li Y, Kou Z, Hou P, Xie H, Bi Z, Zheng B. Emergence of NDM-1- and CTX-M-3-Producing Raoultella ornithinolytica in Human Gut Microbiota. Front Microbiol 2019; 10:2678. [PMID: 31824461 PMCID: PMC6883284 DOI: 10.3389/fmicb.2019.02678] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 11/05/2019] [Indexed: 12/21/2022] Open
Abstract
Raoultella ornithinolytica is an opportunistic pathogen of the Enterobacteriaceae family and has been implicated in nosocomial infections in recent years. The aim of this study was to characterize a carbapenemase-producing R. ornithinolytica isolate and three extended-spectrum β-lactamase (ESBL)-producing R. ornithinolytica isolates from stool samples of adults in a rural area of Shandong Province, China. The species were identified using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and 16S rDNA sequence analysis. Antimicrobial susceptibility test showed that all four isolates were multidrug-resistant (MDR). The whole genome sequence (WGS) of these isolates was determined using an Illumina HiSeq platform, which revealed MDR-related genes. The S1 nuclease-pulsed-field gel electrophoresis (S1-PFGE) was used to characterize the plasmids carried by the R. ornithinolytica isolates. The blaNDM-1 and blaCTX-M-3 genes were probed using Southern blotting, which confirmed the location of both genes on the same plasmid with molecular weight of 336.5–398.4 kb. The transferability of blaNDM-1 and blaCTX-M was also confirmed by conjugation assays. Finally, BLAST analysis of both genes showed that mobile genetic elements were associated with the spread of drug resistance genes. Taken together, we report the presence of conjugative blaNDM-1 and blaCTX-M plasmids in R. ornithinolytica isolates from healthy humans, which indicate the possibility of inter-species transfer of drug resistance genes. To the best of our knowledge, this is the first study to isolate and characterize carbapenemase-producing R. ornithinolytica and ESBL-producing R. ornithinolytica isolates from healthy human hosts.
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Affiliation(s)
- Shuang Wang
- Bacterial Infection Disease Control of Institute, Shandong Center for Disease Control and Prevention, Jinan, China
| | - Liuchen Xu
- Bacterial Infection Disease Control of Institute, Shandong Center for Disease Control and Prevention, Jinan, China
| | - Xiaohui Chi
- 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.,Department of Environment and Health, School of Public Health, Shandong University, Jinan, China
| | - Yan Li
- Bacterial Infection Disease Control of Institute, Shandong Center for Disease Control and Prevention, Jinan, China
| | - Zengqiang Kou
- Bacterial Infection Disease Control of Institute, Shandong Center for Disease Control and Prevention, Jinan, China
| | - Peibin Hou
- Bacterial Infection Disease Control of Institute, Shandong Center for Disease Control and Prevention, Jinan, China
| | - Hengjie Xie
- Department of Supervise Sampling, Shandong Institute for Food and Drug Control, Jinan, China
| | - Zhenwang Bi
- Bacterial Infection Disease Control of Institute, Shandong Center for Disease Control and Prevention, Jinan, China.,Shandong Academy of Clinical Medicine, Shandong Provincial Hospital, Jinan, 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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28
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Comprehensive Genome Analysis of Carbapenem-Resistant Raoultella spp. strains, an Emerging Multidrug-Resistant Bacteria in Hospitals. Antimicrob Agents Chemother 2019:AAC.01367-19. [PMID: 31570399 PMCID: PMC6879265 DOI: 10.1128/aac.01367-19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
We report the characterization of six carbapenem-resistant Raoultella spp. (CRRS) in our hospital and a genomic analysis of 58 publicly available isolates. CRRS isolates are sporadically identified around the world, and different transposons carrying carbapenemases were the resistant mechanisms. Mobile genetic elements play an important role in acquiring antibiotic resistance genes from the hospital. We report the characterization of six carbapenem-resistant Raoultella spp. (CRRS) in our hospital and a genomic analysis of 58 publicly available isolates. CRRS isolates are sporadically identified around the world, and different transposons carrying carbapenemases were the resistant mechanisms. Mobile genetic elements play an important role in acquiring antibiotic resistance genes from the hospital. An improved understanding of these transposon and targeted control measures will be very valuable to prevent CRRS dissemination.
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29
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Chi X, Hu G, Xu H, Li X, Xiao T, Zhou Y, Xia H, Zou H, Han H, Zheng B, Gao H, Li X. Genomic Analysis Of A KPC-2-Producing Klebsiella Pneumoniae ST11 Outbreak From A Teaching Hospital In Shandong Province, China. Infect Drug Resist 2019; 12:2961-2969. [PMID: 31571948 PMCID: PMC6756855 DOI: 10.2147/idr.s221788] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 09/07/2019] [Indexed: 01/01/2023] Open
Abstract
Purpose Klebsiella pneumoniae carbapenemase (KPC)-producing K. pneumoniae bacteria causes nosocomial infections worldwide. However, KPC-producing K. pneumoniae outbreak has never been reported in Shandong Province, China. The purpose of our study was to elucidate the epidemiological and drug resistance mechanisms of KPC-producing K. pneumoniae strains collected from a large teaching hospital in Shandong during the outbreak. Moreover, we attempted to characterize the genetic environment and phylogenetic analysis of blaKPC-2 in outbreak isolates. Methods We monitored a 64-day outbreak of infection in a general hospital in Shandong Province, and the bacteria causing the infection were all ST11-type K. pneumoniae. The genotype correlation of KPC-producing K. pneumoniae isolates was assessed by whole-genome sequencing (WGS) phylogenetic analysis. Subsequent studies included antibiotic susceptibility testing, multilocus sequence typing (MLST) and S1-pulsed-field gel electrophoresis (S1-PFGE), Southern blot hybridization. Results From February 1, 2018 to April 5, 2018, 14 KPC-producing K. pneumoniae isolates from different wards were collected. All 14 isolates were resistant to carbapenems and carried the extended-spectrum β-lactamase (ESBL) gene as well as fosA, and sul genes. Whole-genome analysis showed that all 14 the outbreak isolates were all ST11 type. The blaKPC-2 carrying plasmids were all belong to IncFIIK2 type, and the size ranged from 94 kb to 368 kb. Conclusion As far as we know, this report first describes the genomics characterization of KPC-2-producing K. pneumoniae outbreak isolates from Shandong Province, China. In our study, these isolates appeared to be cloned, and ST11 K. pneumoniae was the major clone caused the outbreak. Therefore, routine surveillance of such strains in this region is urgently warranted.
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Affiliation(s)
- Xiaohui Chi
- Department of Environment and Health, School of Public Health, Shandong University, Jinan 250012, People's Republic of China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Disease, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Guangchun Hu
- Division of Bacteria Diseases, Jinan Municipal Center for Disease Control and Prevention, Jinan, People's Republic of China
| | - Hao Xu
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Disease, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Xiucun Li
- Department of Infection Control, Qilu Hospital of Shandong University, Jinan 250012, People's Republic of China
| | - Tingting Xiao
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Disease, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Yanzi Zhou
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Disease, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Huiyu Xia
- Department of Environment and Health, School of Public Health, Shandong University, Jinan 250012, People's Republic of China
| | - Huiyun Zou
- Department of Environment and Health, School of Public Health, Shandong University, Jinan 250012, People's Republic of China
| | - Hui Han
- Department of Infection Control, Qilu Hospital of Shandong University, Jinan 250012, People's Republic of China
| | - Beiwen Zheng
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Disease, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, People's Republic of China
| | - Haiyan Gao
- Department of Infection Control, Qilu Hospital of Shandong University, Jinan 250012, People's Republic of China
| | - Xuewen Li
- Department of Environment and Health, School of Public Health, Shandong University, Jinan 250012, People's Republic of China
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Hu X, Yu X, Shang Y, Xu H, Guo L, Liang Y, Kang Y, Song L, Sun J, Yue F, Mao Y, Zheng B. Emergence and Characterization of a Novel IncP-6 Plasmid Harboring bla KPC-2 and qnrS2 Genes in Aeromonas taiwanensis Isolates. Front Microbiol 2019; 10:2132. [PMID: 31572337 PMCID: PMC6751286 DOI: 10.3389/fmicb.2019.02132] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Accepted: 08/30/2019] [Indexed: 11/13/2022] Open
Abstract
The dissemination of Klebsiella pneumoniae carbapenemases (KPCs) among Gram-negative bacteria is an important threat to global health. However, KPC-producing bacteria from environmental samples are rarely reported. This study aimed to elucidate the underlying resistance mechanisms of three carbapenem-resistant Aeromonas taiwanensis isolates recovered from river sediment samples. Pulsed-field gel electrophoresis (PFGE) and whole genome sequencing (WGS) analysis indicated a close evolutionary relationship among A. taiwanensis isolates. S1-PFGE, Southern blot and conjugation assays confirmed the presence of blaKPC–2 and qnrS2 genes on a non-conjugative plasmid in these isolates. Plasmid analysis further showed that pKPC-1713 is an IncP-6 plasmid with a length of 53,205 bp, which can be transformed into DH5α strain and mediated carbapenems and quinolones resistance. The plasmid backbone of p1713-KPC demonstrated 99% sequence identity to that of IncP-6-type plasmid pKPC-cd17 from Aeromonas spp. and IncP-6-type plasmid: 1 from Citrobacter freundii at 74% coverage. A 14,808 bp insertion sequence was observed between merT gene and hypothetical protein in p1713-KPC, which include the quinolone resistance qnrS2 gene. Emergence of plasmid-borned blaKPC and qnrS2 genes from A. taiwanensis isolates highlights their possible dissemination into the environment. Therefore, potential detection of such plasmids from clinical isolates should be closely monitored.
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Affiliation(s)
- Xinjun Hu
- Department of Infectious Diseases, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, China.,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
| | - 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
| | - Yibing Shang
- Department of Infectious Diseases, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, China
| | - 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
| | - 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
| | - Yile Liang
- Department of Infectious Diseases, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, China
| | - Yixin Kang
- Department of Infectious Diseases, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, China
| | - Li Song
- Department of Infectious Diseases, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, China
| | - Jifeng Sun
- Department of Infectious Diseases, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, China
| | - Feng Yue
- Department of Infectious Diseases, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, China
| | - Yimin Mao
- Department of Respiratory Medicine, The First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, 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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31
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Carramaschi IN, Castro EARD, Leite JA, Queiroz MMDC, Boas MHSV, Rangel K, Zahner V. First report of Raoultella ornithinolytica carrying blaKPC-2 isolated from a dipteran muscoid collected in a garbage from a public hospital in Rio de Janeiro, Brazil. Rev Inst Med Trop Sao Paulo 2019; 61:e32. [PMID: 31269108 PMCID: PMC6609134 DOI: 10.1590/s1678-9946201961032] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 03/18/2019] [Indexed: 11/25/2022] Open
Affiliation(s)
- Isabel Nogueira Carramaschi
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Entomologia Médica e Forense, Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Jéssica Albuquerque Leite
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Entomologia Médica e Forense, Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Maria Helena Simões Villas Boas
- Fundação Oswaldo Cruz, Instituto Nacional de Controle de Qualidade em Saúde, Laboratório de Saneantes, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Karyne Rangel
- Fundação Oswaldo Cruz, Instituto Nacional de Controle de Qualidade em Saúde, Laboratório de Saneantes, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Viviane Zahner
- Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Entomologia Médica e Forense, Rio de Janeiro, Rio de Janeiro, Brazil
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32
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Guo X, Rao Y, Guo L, Xu H, Lv T, Yu X, Chen Y, Liu N, Han H, Zheng B. Detection and Genomic Characterization of a Morganella morganii Isolate From China That Produces NDM-5. Front Microbiol 2019; 10:1156. [PMID: 31191484 PMCID: PMC6546717 DOI: 10.3389/fmicb.2019.01156] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/07/2019] [Indexed: 12/15/2022] Open
Abstract
The increasing prevalence and transmission of the carbapenem resistance gene bla NDM-5 has led to a severe threat to public health. So far, bla NDM-5 has been widely detected in various species of Enterobacterales and different hosts across various cities. However, there is no report on the bla NDM-5- harboring Morganella morganii. In January 2016, the first NDM-5-producing Morganella morganii L241 was found in a stool sample of a patient diagnosed as recurrence of liver cancer in China. Identification of the species was performed using 16S rRNA gene sequencing. Carbapenemase genes were identified through both PCR and sequencing. To investigate the characteristics and complete genome sequence of the bla NDM-5-harboring clinical isolate, antimicrobial susceptibility testing, S1 nuclease pulsed field gel electrophoresis, Southern blotting, transconjugation experiment, complete genome sequencing, and comparative genomic analysis were performed. M. morganii L241 was found to be resistant to broad-spectrum cephalosporins and carbapenems. The complete genome of L241 is made up from both a 3,850,444 bp circular chromosome and a 46,161 bp self-transmissible IncX3 plasmid encoding bla NDM-5, which shared a conserved genetic context of bla NDM-5 (ΔIS3000-ΔISAba125-IS5-bla NDM-5-ble-trpF-dsbC-IS26). BLASTn analysis showed that IncX3 plasmids harboring bla NDM genes have been found in 15 species among Enterobacterales from 13 different countries around the world thus far. In addition, comparative genomic analysis showed that M. morganii L241 exhibits a close relationship to M. morganii subsp. morganii KT with 107 SNPs. Our research demonstrated that IncX3 is a key element in the worldwide dissemination of bla NDM-5 among various species. Further research will be necessary to control and prevent the spread of such plasmids.
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Affiliation(s)
- Xiaobing Guo
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuting Rao
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Lihua Guo
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Hao Xu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Tao Lv
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xiao Yu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yunbo Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Na Liu
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Huiming Han
- Basic Medical College, Beihua University, Jilin City, China.,The Clinical Immunology Research Center, Beihua University, Jilin City, China
| | - Beiwen Zheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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33
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Zou H, Zheng B, Sun M, Ottoson J, Li Y, Berglund B, Chi X, Ji X, Li X, Stålsby Lundborg C, Nilsson LE. Evaluating Dissemination Mechanisms of Antibiotic-Resistant Bacteria in Rural Environments in China by Using CTX-M-Producing Escherichia coli as an Indicator. Microb Drug Resist 2019; 25:975-984. [PMID: 30942653 DOI: 10.1089/mdr.2018.0431] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
It is becoming increasingly recognized that the environment plays an important role both in the emergence and in dissemination of antibiotic-resistant bacteria (ARB), Mechanisms and factors facilitating this development are, however, not yet well understood. The high detection rate of CTX-M genes in environmental sources provides an opportunity to explore this issue. In this study, 88 CTX-M-producing Escherichia coli were isolated from 30 pig feces samples from 30 pig farms and 201 environmental samples. CTX-M-producing E. coli was detected with the following frequencies in the different types of samples: pig feces, 73%; river water, 64%; river sediment, 52%; wastewater, 31%; drinking water, 23%; outlet sediment, 21%; soil, 17%; and vegetables, 4.4%. Dissemination of CTX-M-producing E. coli to different environmental matrices was evaluated by analyzing the genetic relatedness of isolates from different environmental sources, and putative transmission routes through bird feces, pig feces, drinking water, river sediment, river water, and wastewater were hypothesized. Dissemination through these routes is likely facilitated by anthropogenic activities and environmental factors. Wild birds as potential vectors for dissemination of CTX-M-producing E. coli have the capacity to spread ARB across long distances. Regional dissemination between different environmental matrices of CTX-M-producing E. coli increases the exposure risk of humans and animals in the area.
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Affiliation(s)
- Huiyun Zou
- Department of Environment and Health, School of Public Health, Shandong University, Jinan, China
| | - Beiwen Zheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Mingli Sun
- Center of Disease Prevention and Control, Zhucheng City, Shandong Province, China
| | - Jakob Ottoson
- National Food Agency, Department of Risk and Benefit Assessment, Uppsala, Sweden
| | - Yubo Li
- Center of Disease Prevention and Control, Zhucheng City, Shandong Province, China
| | - Björn Berglund
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
| | - Xiaohui Chi
- Department of Environment and Health, School of Public Health, Shandong University, Jinan, China
| | - Xiang Ji
- Department of Environment and Health, School of Public Health, Shandong University, Jinan, China
| | - Xuewen Li
- Department of Environment and Health, School of Public Health, Shandong University, Jinan, China
| | - Cecilia Stålsby Lundborg
- Global Health-Health Systems and Policy: Medicines, Focusing Antibiotics, Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - Lennart E Nilsson
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
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34
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Piotrowska M, Kowalska S, Popowska M. Diversity of β-lactam resistance genes in gram-negative rods isolated from a municipal wastewater treatment plant. ANN MICROBIOL 2019. [DOI: 10.1007/s13213-019-01450-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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35
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Zheng B, Xu H, Yu X, Lv T, Jiang X, Cheng H, Zhang J, Chen Y, Huang C, Xiao Y. Identification and genomic characterization of a KPC-2-, NDM-1- and NDM-5-producing Klebsiella michiganensis isolate. J Antimicrob Chemother 2019; 73:536-538. [PMID: 29126236 DOI: 10.1093/jac/dkx415] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- 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 310003, China
| | - 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 310003, 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 310003, China
| | - Tao Lv
- 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 310003, China
| | - Xiawei Jiang
- College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Hong Cheng
- Key Laboratory of Marine Ecosystem and Biogeochemistry, Second Institute of Oceanography, State Oceanic Administration, Hangzhou, China
| | - Jing Zhang
- Division of Respiratory Diseases, Guangdong General Hospital, Guangzhou, China
| | - Yunbo Chen
- 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 310003, 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 310003, China
| | - Yonghong Xiao
- 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 310003, China
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36
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Tuo H, Yang Y, Tao X, Liu D, Li Y, Xie X, Li P, Gu J, Kong L, Xiang R, Lei C, Wang H, Zhang A. The Prevalence of Colistin Resistant Strains and Antibiotic Resistance Gene Profiles in Funan River, China. Front Microbiol 2018; 9:3094. [PMID: 30619173 PMCID: PMC6305280 DOI: 10.3389/fmicb.2018.03094] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 11/29/2018] [Indexed: 11/13/2022] Open
Abstract
Anthropogenic activities near urban rivers may have significantly increased the acquisition and dissemination of antibiotic resistance. In this study, we investigated the prevalence of colistin resistant strains in the Funan River in Chengdu, China. A total of 18 mcr-1-positive isolates (17 Escherichia coli and 1 Enterobacter cloacae) and 6 mcr-3-positive isolates (2 Aeromonas veronii and 4 Aeromonas hydrophila) were detected, while mcr-2, mcr-4 and mcr-5 genes were not detected in any isolates. To further explore the overall antibiotic resistance in the Funan River, water samples were assayed for the presence of 15 antibiotic resistance genes (ARGs) and class 1 integrons gene (intI1). Nine genes, sul1, sul2, intI1, aac(6')-Ib-cr, bla CTX-M, tetM, ermB, qnrS, and aph(3')-IIIa were found at high frequencies (70-100%) of the water samples. It is worth noting that mcr-1, bla KPC, bla NDM and vanA genes were also found in water samples, the genes that have been rarely reported in natural river systems. The absolute abundance of selected antibiotic resistance genes [sul1, aac(6')-Ib-cr, ermB, blaCTX-M, mcr-1, and tetM] ranged from 0 to 6.0 (log10 GC/mL) in water samples, as determined by quantitative polymerase chain reaction (qPCR). The sul1, aac(6')-Ib-cr, and ermB genes exhibited the highest absolute abundances, with 5.8, 5.8, and 6.0 log10 GC/mL, respectively. The absolute abundances of six antibiotic resistance genes were highest near a residential sewage outlet. The findings indicated that the discharge of resident sewage might contribute to the dissemination of antibiotic resistant genes in this urban river. The observed high levels of these genes reflect the serious degree of antibiotic resistant pollution in the Funan River, which might present a threat to public health.
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Affiliation(s)
- Hongmei Tuo
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Yanxian Yang
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Xi Tao
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Dan Liu
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Yunxia Li
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Xianjun Xie
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Ping Li
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Ju Gu
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Linghan Kong
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Rong Xiang
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Changwei Lei
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Hongning Wang
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
| | - Anyun Zhang
- Animal Disease Prevention and Food Safety Key Laboratory of Sichuan Province, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, China
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37
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Van Cleve J, Boucher B, Smith D, Croce M. Ventilator associated pneumonia caused by Raoultella ornithinolytica in two immunocompetent trauma patients. Respir Med Case Rep 2018; 24:135-137. [PMID: 29977781 PMCID: PMC6010634 DOI: 10.1016/j.rmcr.2018.05.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 05/01/2018] [Indexed: 11/18/2022] Open
Abstract
Infections with Raoultella ornithinolytica have recently been reported more frequently in the medical literature. This pathogen has the potential to cause many types of infections, including pneumonia. Here, we report the first two cases of ventilator-associated pneumonia (VAP) in trauma patients caused by Raoultella ornithinolytica. Both of these infections were successfully treated with antibiotics based on susceptibilities and the patients were able to be transferred out of the intensive care unit.
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Affiliation(s)
- J.R. Van Cleve
- University of Tennessee, College of Pharmacy, USA
- Corresponding author.
| | - B.A. Boucher
- University of Tennessee, College of Pharmacy, USA
| | - D.V. Smith
- University of Tennessee, College of Pharmacy, USA
| | - M.A. Croce
- University of Tennessee, College of Medicine, Department of Surgery, USA
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38
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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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Sklodowska A, Mielnicki S, Drewniak L. Raoultella sp. SM1, a novel iron-reducing and uranium-precipitating strain. CHEMOSPHERE 2018; 195:722-726. [PMID: 29289017 DOI: 10.1016/j.chemosphere.2017.12.123] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 12/09/2017] [Accepted: 12/20/2017] [Indexed: 06/07/2023]
Abstract
The main aim of this study was the characterisation of novel Raoutella isolate, an iron-reducing and uranium-precipitating strain, originating from microbial mats occurring in the sediments of a closed down uranium mine in Kowary (SW Poland). Characterisation was done in the context of its potential role in the functioning of these mats and the possibility to use them in uranium removal/recovery processes. In our experiment, we observed the biological precipitation of iron and uranium's secondary minerals containing oxygen, potassium, sodium and phosphor, which were identified as ningyoite-like minerals. The isolated strain, Raoultella sp. SM1, was also able to dissimilatory reduce iron (III) and uranium (VI) in the presence of citrate as an electron donor. Our studies allowed us to characterise a new strain which may be used as a model microorganism in the study of Fe and U respiratory processes and which may be useful in the bioremediation of uranium-contaminated waters and sediments. During this process, uranium may be immobilised in ningyoite-like minerals and can then be recovered in nano/micro-particle form, which may be easily transformed to uraninite.
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Affiliation(s)
- Aleksandra Sklodowska
- University of Warsaw, Faculty of Biology, Laboratory of Environmental Pollution Analysis, Miecznikowa 1, 02-096, Warsaw, Poland.
| | - Sebastian Mielnicki
- University of Warsaw, Faculty of Biology, Laboratory of Environmental Pollution Analysis, Miecznikowa 1, 02-096, Warsaw, Poland
| | - Lukasz Drewniak
- University of Warsaw, Faculty of Biology, Laboratory of Environmental Pollution Analysis, Miecznikowa 1, 02-096, Warsaw, Poland
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40
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Paitan Y. Current Trends in Antimicrobial Resistance of Escherichia coli. Curr Top Microbiol Immunol 2018; 416:181-211. [PMID: 30088148 DOI: 10.1007/82_2018_110] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Abstract
Escherichia coli is the most common Gram-negative bacterial pathogen, presenting both a clinical and an epidemiological challenge. In the last decade, several successful multidrug-resistant high-risk strains, such as strain E. coli ST131 have evolved, mainly due to the growing selective pressure of antimicrobial use. These strains present enhanced fitness and pathogenicity, effective transmission and colonization abilities, global distribution due to efficient dissemination, and resistance to various antimicrobial resistances. Here, we describe the emerging trends and epidemiology of resistant E. coli, including carbapenemase-producing E. coli, E. coli ST131 and colistin resistant E. coli.
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Affiliation(s)
- Yossi Paitan
- Clinical Microbiology Laboratory, Meir Medical Center, 44282, Kfar Saba, Israel. .,Department of Clinical Microbiology and Immunology, Sackler Faculty of Medicine, Tel Aviv University, 39978, Tel Aviv, Israel.
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41
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Zheng B, Huang C, Xu H, Guo L, Zhang J, Wang X, Jiang X, Yu X, Jin L, Li X, Feng Y, Xiao Y, Li L. Occurrence and Genomic Characterization of ESBL-Producing, MCR-1-Harboring Escherichia coli in Farming Soil. Front Microbiol 2017; 8:2510. [PMID: 29312211 PMCID: PMC5735249 DOI: 10.3389/fmicb.2017.02510] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 12/04/2017] [Indexed: 01/30/2023] Open
Abstract
The emergence and spread of the mobile colistin resistance gene (mcr-1) has become a major global public health concern. So far, this gene has been widely detected in food animals, pets, food, and humans. However, there is little information on the contamination of mcr-1-containing bacteria in farming soils. In August 2016, a survey of ESBL-producing Escherichia coli isolated from farming soils was conducted in Shandong Province, China. We observed colistin resistance in 12 of 53 (22.6%) ESBL-producing Enterobacteriaceae isolates from farming soil. Six mcr-1-positive E. coli strains originating from a livestock-intensive area were found. The isolates belonged to four different STs (ST2060, ST3014, ST6756, and ST1560) and harbored extensive additional resistance genes. An E. coli with blaNDM-1 was also detected in a soil sample from the same area. Comparative whole genome sequencing and S1-PFGE analysis indicated that mcr-1 was chromosomally encoded in four isolates and located on IncHI2 plasmids in two isolates. To our knowledge, we report the first isolation of mcr-1 in ESBL-producing E. coli from farming soils. This work highlights the importance of active surveillance of colistin-resistant organisms in soil. Moreover, investigations addressing the influence of animal manure application on the transmission of mcr-1-producing bacteria are also warranted.
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Affiliation(s)
- 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 of 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 of College of Medicine, Zhejiang University, Hangzhou, China
| | - 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 of College of Medicine, Zhejiang University, Hangzhou, 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 of College of Medicine, Zhejiang University, Hangzhou, China
| | - Jing Zhang
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital of College of Medicine, Zhejiang University, Hangzhou, China.,Department of Respiratory Diseases, The First Affiliated Hospital of 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 of College of Medicine, Zhejiang University, Hangzhou, China.,School of Laboratory Medicine and Life Science, Wenzhou Medical University, Wenzhou, China
| | - Xiawei Jiang
- College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, 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 of College of Medicine, Zhejiang University, Hangzhou, China
| | - Linfeng Jin
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital of College of Medicine, Zhejiang 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
| | - Yonghong Xiao
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital of College of Medicine, Zhejiang University, Hangzhou, China
| | - Lanjuan Li
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital of College of Medicine, Zhejiang University, Hangzhou, China
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42
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Occurrence of blaKPC-2, blaCTX-M, and mcr-1 in Enterobacteriaceae from Well Water in Rural China. Antimicrob Agents Chemother 2017; 61:AAC.02569-16. [PMID: 28115344 DOI: 10.1128/aac.02569-16] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 01/09/2017] [Indexed: 11/20/2022] Open
Abstract
We report on the coexistence of mcr-1 and blaCTX-M in multidrug-resistant, extended-spectrum β-lactamase-producing Escherichia coli belonging to the sequence type 10 complex isolated from well water in rural China. Raoultella ornithinolytica with blaKPC-2 was also detected in well water from the same area. This study shows that genes coding for resistance to last-resort antibiotics are present in wells in rural China, indicating a potential source of antibiotic resistance.
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43
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Potter RF, D'Souza AW, Dantas G. The rapid spread of carbapenem-resistant Enterobacteriaceae. Drug Resist Updat 2016; 29:30-46. [PMID: 27912842 DOI: 10.1016/j.drup.2016.09.002] [Citation(s) in RCA: 239] [Impact Index Per Article: 29.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 08/23/2016] [Accepted: 09/07/2016] [Indexed: 02/07/2023]
Abstract
Carbapenems, our one-time silver bullet for multidrug resistant bacterial infections, are now threatened by widespread dissemination of carbapenem-resistant Enterobacteriaceae (CRE). Successful expansion of Enterobacteriaceae clonal groups and frequent horizontal gene transfer of carbapenemase expressing plasmids are causing increasing carbapenem resistance. Recent advances in genetic and phenotypic detection facilitate global surveillance of CRE diversity and prevalence. In particular, whole genome sequencing enabled efficient tracking, annotation, and study of genetic elements colocalized with carbapenemase genes on chromosomes and on plasmids. Improved characterization helps detail the co-occurrence of other antibiotic resistance genes in CRE isolates and helps identify pan-drug resistance mechanisms. The novel β-lactamase inhibitor, avibactam, combined with ceftazidime or aztreonam, is a promising CRE treatment compared to current colistin or tigecycline regimens. To halt increasing CRE-associated morbidity and mortality, we must continue quality, cooperative monitoring and urgently investigate novel treatments.
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Affiliation(s)
- Robert F Potter
- Center for Genome Sciences and System Biology, Washington University School of Medicine, 4515 McKinley Avenue, Campus Box 8510, St. Louis, MO 63110, USA
| | - Alaric W D'Souza
- Center for Genome Sciences and System Biology, Washington University School of Medicine, 4515 McKinley Avenue, Campus Box 8510, St. Louis, MO 63110, USA
| | - Gautam Dantas
- Center for Genome Sciences and System Biology, Washington University School of Medicine, 4515 McKinley Avenue, Campus Box 8510, St. Louis, MO 63110, USA; Department of Pathology & Immunology, Washington University School of Medicine, 660 South Euclid Ave, St. Louis, MO 63110, USA; Department of Biomedical Engineering, Washington University in Saint Louis, 1 Brookings Drive, St. Louis, MO 63130, USA; Department of Molecular Microbiology, Washington University School of Medicine, 660 S. Euclid Ave, St. Louis, MO 63110, USA.
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44
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Goire N, Harnett GB, O'Reilly LC, Ingram PR, Leung MJ, Speers DJ, Healy PE, Inglis TJJ. The implications of endemic IMP-4 carbapenemase for clinical laboratory susceptibility testing. J Microbiol Methods 2016; 124:10-2. [PMID: 26945518 DOI: 10.1016/j.mimet.2016.03.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 03/01/2016] [Accepted: 03/01/2016] [Indexed: 10/22/2022]
Abstract
A local predominance of carbapenemase producing Enterobacteriaceae with low minimum inhibitory concentrations (MIC) to meropenem prompted a review of methods available for carbapenemase detection. We report on results using two selective media, temocillin discs, CarbaNP test, GeneXpert Carba-R assay and an in-house PCR assay.
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Affiliation(s)
- Namraj Goire
- Department of Microbiology, PathWest Laboratory Medicine WA, Queen Elizabeth II Medical Centre, Hospital Avenue, Nedlands, Western Australia 6009, Australia
| | - Gerald B Harnett
- Department of Microbiology, PathWest Laboratory Medicine WA, Queen Elizabeth II Medical Centre, Hospital Avenue, Nedlands, Western Australia 6009, Australia
| | - Lyn C O'Reilly
- Department of Microbiology, PathWest Laboratory Medicine WA, Queen Elizabeth II Medical Centre, Hospital Avenue, Nedlands, Western Australia 6009, Australia. Lyn.O'
| | - Paul R Ingram
- Department of Microbiology, PathWest Laboratory Medicine WA, Fiona Stanley Hospital, Perth, Western Australia 6150, Australia; School of Pathology and Laboratory Medicine, University of Western Australia, Crawley, Western Australia 6009, Australia
| | - Michael J Leung
- Department of Microbiology, PathWest Laboratory Medicine WA, Queen Elizabeth II Medical Centre, Hospital Avenue, Nedlands, Western Australia 6009, Australia; School of Pathology and Laboratory Medicine, University of Western Australia, Crawley, Western Australia 6009, Australia
| | - David J Speers
- Department of Microbiology, PathWest Laboratory Medicine WA, Queen Elizabeth II Medical Centre, Hospital Avenue, Nedlands, Western Australia 6009, Australia; School of Medicine and Pharmacology, University of Western Australia, Crawley, Western Australia 6009, Australia
| | - Paul E Healy
- Department of Microbiology, PathWest Laboratory Medicine WA, Queen Elizabeth II Medical Centre, Hospital Avenue, Nedlands, Western Australia 6009, Australia
| | - Timothy J J Inglis
- Department of Microbiology, PathWest Laboratory Medicine WA, Queen Elizabeth II Medical Centre, Hospital Avenue, Nedlands, Western Australia 6009, Australia; School of Pathology and Laboratory Medicine, University of Western Australia, Crawley, Western Australia 6009, Australia
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