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Ghamari M, Emaneini M, Hemmati S, Jabalameli F, Beigverdi R. Phenotypic and genotypic evaluation of aminoglycoside resistance in Escherichia coli isolated from patients with blood stream infections in Tehran, Iran. IRANIAN JOURNAL OF MICROBIOLOGY 2024; 16:187-192. [PMID: 38854982 PMCID: PMC11162164 DOI: 10.18502/ijm.v16i2.15351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Background and Objectives Escherichia coli is a significant causative agent of bloodstream infections (BSIs). Aminoglycoside antibiotics play a crucial role in treating severe infections such as sepsis and pneumonia. However, resistance to these antibiotics often occurs due to the production of aminoglycoside-modifying enzymes (AMEs). This study was conducted to assess antimicrobial susceptibility patterns against various aminoglycosides and to determine the prevalence of common AME genes in E. coli strains isolated from BSIs. Materials and Methods Sixty-five E. coli isolates were obtained from blood samples in a referral hospital in Tehran, Iran. The susceptibility patterns of aminoglycosides were determined using disk diffusion method and AMEs genes were investigated using PCR assay. Results Resistance to aminoglycosides was observed in 64.6% (42/65) of the isolates. The most frequent resistance rate was found for kanamycin (44.6%) and gentamicin (38.5%), followed by tobramycin (29.2%) and amikacin (4.6%). The most frequent AME gene was aac(3)-IVa, which detected in 49.2% isolates, followed by aac(6)-Ib (40%), aac(3)-IIa (32.3%), and ant(2)-Ia (30.8%), respectively. Conclusion Athough the findings of this survey are based on specimens collected from a single hospital, our study shows that the high prevalence of aminoglycoside resistance is primarily attributed to the presence of the aac(3)-Iva, aac(6)-Ib and aac(3)-IIa genes. The low rate of resistance to amikacin makes this antibiotic a good candidate for treatment of BSIs due to E. coli.
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Affiliation(s)
- Mahsa Ghamari
- Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Emaneini
- Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Saeed Hemmati
- Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Fereshteh Jabalameli
- Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Beigverdi
- Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Fandiño-Devia E, Santa-González GA, Klaiss-Luna MC, Manrique-Moreno M. Study of the Membrane Activity of the Synthetic Peptide ∆M3 Against Extended-Spectrum β-lactamase Escherichia coli Isolates. J Membr Biol 2024; 257:51-61. [PMID: 38315239 PMCID: PMC11006780 DOI: 10.1007/s00232-024-00306-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 01/03/2024] [Indexed: 02/07/2024]
Abstract
Escherichia coli is the most common microorganism causing nosocomial or community-acquired bacteremia, and extended-spectrum β-lactamase-producing Escherichia coli isolates are identified worldwide with increasing frequency. For this reason, it is necessary to evaluate potential new molecules like antimicrobial peptides. They are recognized for their biological potential which makes them promising candidates in the fight against infections. The goal of this research was to evaluate the potential of the synthetic peptide ΔM3 on several extended-spectrum β-lactamase producing E. coli isolates. The antimicrobial and cytotoxic activity of the peptide was spectrophotometrically determined. Additionally, the capacity of the peptide to interact with the bacterial membrane was monitored by fluorescence microscopy and infrared spectroscopy. The results demonstrated that the synthetic peptide is active against Escherichia coli isolates at concentrations similar to Meropenem. On the other hand, no cytotoxic effect was observed in HaCaT keratinocyte cells even at 10 times the minimal inhibitory concentration. Microscopy results showed a permeabilizing effect of the peptide on the bacteria. The infrared results showed that ΔM3 showed affinity for the lipids of the microorganism's membrane. The results suggest that the ∆M3 interacts with the negatively charged lipids from the E. coli by a disturbing effect on membrane. Finally, the secondary structure experiments of the peptide showed a random structure in solution that did not change during the interaction with the membranes.
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Affiliation(s)
- Estefanía Fandiño-Devia
- Chemistry Institute, Faculty of Exact and Natural Sciences, University of Antioquia, A.A. 1226, Medellin, 050010, Colombia
| | - Gloria A Santa-González
- Grupo de Investigación e Innovación Biomédica, Facultad de Ciencias Exactas y Aplicadas, Instituto Tecnológico Metropolitano, A.A. 54959, Medellín, 050010, Colombia
| | - Maria C Klaiss-Luna
- Chemistry Institute, Faculty of Exact and Natural Sciences, University of Antioquia, A.A. 1226, Medellin, 050010, Colombia
| | - Marcela Manrique-Moreno
- Chemistry Institute, Faculty of Exact and Natural Sciences, University of Antioquia, A.A. 1226, Medellin, 050010, Colombia.
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Hefetz I, Bardenstein R, Rotem S, Zaide G, Bilinsky G, Shifman O, Zimhony O, Aloni-Grinstein R. Rapid Phenotypic Antibiotic Susceptibility Profiling of Clinical Escherichia coli and Klebsiella pneumoniae Blood Cultures. Antibiotics (Basel) 2024; 13:231. [PMID: 38534666 DOI: 10.3390/antibiotics13030231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/12/2024] [Accepted: 02/27/2024] [Indexed: 03/28/2024] Open
Abstract
Bloodstream infections (BSI) are defined by the presence of viable bacteria or fungi, accompanied by systemic signs of infection. Choosing empirical therapy based solely on patient risk factors and prior antibiotic susceptibility test (AST) may lead to either ineffective treatment or unnecessarily broad-spectrum antibiotic exposure. In general, Clinical & Laboratory Standards Institute guideline-approved ASTs have a turnaround time of 48-72 h from sample to answer, a period that may result in a critical delay in the appropriate selection of therapy. Therefore, reducing the time required for AST is highly advantageous. We have previously shown that our novel rapid AST method, MAPt (Micro-Agar-PCR-test), accurately identifies susceptibility profiles for spiked bioterrorism agents like Bacillus anthracis, Yersinia pestis and Francisella tularensis directly from whole-blood and blood culture samples, even at low bacterial levels (500 CFU/mL). This study evaluated the performance of MAPt on routine bloodstream infection (BSI), focusing on Escherichia coli and Klebsiella pneumoniae isolates from clinical cultures, including resistant strains to some of the six tested antibiotics. Notably, MAPt yielded results exceeding 95% agreement with the standard hospital method within a significantly shorter timeframe of 6 h. These findings suggest significant potential for MAPt as a rapid and reliable BSI management tool.
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Affiliation(s)
- Idan Hefetz
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness Ziona 7410001, Israel
| | - Rita Bardenstein
- Infectious Diseases Unit, Kaplan Medical Center Faculty of Medicine, Hebrew University of Jerusalem, Rehovot 7661041, Israel
| | - Shahar Rotem
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness Ziona 7410001, Israel
| | - Galia Zaide
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness Ziona 7410001, Israel
| | - Gal Bilinsky
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness Ziona 7410001, Israel
| | - Ohad Shifman
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness Ziona 7410001, Israel
| | - Oren Zimhony
- Infectious Diseases Unit, Kaplan Medical Center Faculty of Medicine, Hebrew University of Jerusalem, Rehovot 7661041, Israel
| | - Ronit Aloni-Grinstein
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness Ziona 7410001, Israel
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Maveke SM, Aboge GO, Kanja LW, Mainga AO, Gachau N, Muchira BW, Moriasi GA. Phenotypic and Genotypic Characterization of Extended Spectrum Beta-Lactamase-Producing Clinical Isolates of Escherichia coli and Klebsiella pneumoniae in Two Kenyan Facilities: A National Referral and a Level Five Hospital. Int J Microbiol 2024; 2024:7463899. [PMID: 38384586 PMCID: PMC10881238 DOI: 10.1155/2024/7463899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 01/10/2024] [Accepted: 02/07/2024] [Indexed: 02/23/2024] Open
Abstract
Background The emergence of antimicrobial resistance (AMR) and multidrug resistance (MDR) among Escherichia coli and Klebsiella pneumoniae, especially through the production of extended spectrum β-lactamases (ESBLs), limits therapeutic options and poses a significant public health threat. Objective The aim of this study was to assess the phenotypic and genetic determinants of antimicrobial resistance of ESBL-producing Escherichia coli and Klebsiella pneumoniae isolates from patient samples in two Kenyan Hospitals. Methods We collected 138 E. coli and 127 K. pneumoniae isolates from various clinical specimens at the two health facilities from January 2020 to February 2021. The isolates' ESBL production and antibiotic susceptibility were phenotypically confirmed using a standard procedure. Molecular analysis was done through conventional polymerase chain reaction (PCR) with appropriate primers for gadA, rpoB, blaTEM, blaSHV, blaOXA, blaCTX-M-group-1, blaCTX-M-group-2, blaCTX-M-group-9, and blaCTX-M-group-8/25 genes, sequencing and BLASTn analysis. Results Most E. coli (82.6%) and K. pneumoniae (92.9%) isolates were ESBL producers, with the highest resistance was against ceftriaxone (69.6% among E. coli and 91.3% among K. pneumoniae) and amoxicillin/clavulanic acid (70.9% among K. pneumoniae). The frequency of MDR was 39.9% among E. coli and 13.4% among K. pneumoniae isolates. The commonest MDR phenotypes among the E. coli isolates were CRO-FEP-AZM-LVX and CRO-AZM-LVX, while the FOX-CRO-AMC-MI-TGC-FM, FOX-CRO-FEP-AMC-TZP-AZM-LVX-MI and CRO-AMC-TZP-AZM-MI were the most frequent among K. pneumoniae isolates. Notably, the FOX-CRO-FEP-AMC-TZP-AZM-LVX-MI phenotype was observed in ESBL-positive and ESBL-negative K. pneumoniae isolates. The most frequent ESBL genes were blaTEM (42%), blaSHV (40.6%), and blaOXA (36.2%) among E. coli, and blaTEM (89%), blaSHV (82.7%), blaOXA (76.4%), and blaCTX-M-group-1 (72.5%) were most frequent ESBL genes among K. pneumoniae isolates. The blaSHV and blaOXA and blaTEM genotypes were predominantly associated with FOX-CRO-FEP-MEM and CRO-FEP multidrug resistance (MDR) and CRO antimicrobial resistance (AMR) phenotypes, among E. coli isolates from Embu Level V (16.7%) and Kenyatta National Hospital (7.0%), respectively. Conclusions The high proportion of ESBL-producing E. coli and K. pneumoniae isolates increases the utilization of last-resort antibiotics, jeopardizing antimicrobial chemotherapy. Furthermore, the antimicrobial resistance patterns exhibited towards extended-spectrum cephalosporins, beta-lactam/beta-lactamase inhibitor combinations, fluoroquinolones, and macrolides show the risk of co-resistance associated with ESBL-producing isolates responsible for MDR. Hence, there is a need for regular surveillance and implementation of infection prevention and control strategies and antimicrobial stewardship programs.
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Affiliation(s)
- Sylvia M. Maveke
- Department of Public Health, Pharmacology, and Toxicology, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
| | - Gabriel O. Aboge
- Department of Public Health, Pharmacology, and Toxicology, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
| | - Laetitia W. Kanja
- Department of Public Health, Pharmacology, and Toxicology, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
| | - Alfred O. Mainga
- Department of Public Health, Pharmacology, and Toxicology, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
| | - Naftaly Gachau
- Department of Laboratory Medicine, Microbiology, Kenyatta National Hospital, P.O. Box 20723-00202, Nairobi, Kenya
| | - Beatrice W. Muchira
- Department of Public Health, Pharmacology, and Toxicology, University of Nairobi, P.O. Box 29053-00625, Nairobi, Kenya
| | - Gervason A. Moriasi
- Department of Biochemistry, Microbiology and Biotechnology, Kenyatta University, P.O. Box 43844-00100-GPO, Nairobi, Kenya
- Department of Medical Biochemistry, Mount Kenya University, P.O. Box 342-01000, Thika, Kenya
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Jain S, Singh A, Tiwari N, Naik A, Chatterjee R, Chakravortty D, Basu S. Observations on phenomenological changes in Klebsiella Pneumoniae under fluidic stresses. SOFT MATTER 2023; 19:9239-9253. [PMID: 37999932 DOI: 10.1039/d3sm01521a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
In the present work, experiments are conducted to understand the consequence of stresses generated by flowing fluid on the bacterial morphology and virulence in microfluidic channels. We consider Klebsiella pneumoniae (KP, a clinical isolate), an ESKAPE pathogen, to be the model bacteria responsible for blood stream infections, bacteremia, including pneumonia, urinary tract infections and more. Four different stress conditions are generated by changing the flow rate and channel geometry subsequently altering the shear rate and stressing time (τ). We observe significant changes in the structural aspects of the stressed bacteria. With an increase in stressing parameters, the viability of the bacterial sample deteriorated. Most importantly, these stressed samples proliferate much more than unstressed samples inside the RAW264.7 murine macrophages. The results shed light on the complex relationship between flow stresses and bacterial virulence. Furthermore, the bacterial samples are challenged with ciprofloxacin to see how they behave under different stress conditions. The observations presented in the present study can be extended to model deadly diseases including bacteremia using organ-on-a-chip technology and to understand bacterial pathogenicity under realistic environments.
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Affiliation(s)
- Siddhant Jain
- Department of Mechanical Engineering, Indian Institute of Science, Bengaluru 560012, India.
| | - Anmol Singh
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru 560012, India
| | - Nivedita Tiwari
- Department of Mechanical Engineering, Indian Institute of Science, Bengaluru 560012, India.
| | - Aparna Naik
- Department of Mechanical Engineering, Indian Institute of Science, Bengaluru 560012, India.
| | - Ritika Chatterjee
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru 560012, India
| | - Dipshikha Chakravortty
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bengaluru 560012, India
- School of Biology, Indian Institute of Science Education and Research, Thiruvananthapuram, India
| | - Saptarshi Basu
- Department of Mechanical Engineering, Indian Institute of Science, Bengaluru 560012, India.
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Gaur VK, Sirohi R, Bhat MI, Gautam K, Sharma P, Srivastava JK, Pandey A. A review on the effect of micro- and nano-plastics pollution on the emergence of antimicrobial resistance. CHEMOSPHERE 2023; 311:136877. [PMID: 36257395 DOI: 10.1016/j.chemosphere.2022.136877] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/26/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
The recent upsurge in the studies on micro/nano plastics and antimicrobial resistance genes has proven their deleterious effects on the environmental and human health. Till-date, there is a scarcity of studies on the interactions of these two factors and their combined influence. The interaction of microplastics has led to the formation of new plastics namely plastiglomerates, pyroplastics. and anthropoquinas. It has long been ignored that the occurrence of microplastics has become a breeding ground for the emergence of antimicrobial resistance genes. Evidently microplastics are also associated with the occurrence of other pollutants such as polyaromatic hydrocarbons and pesticides. The increased use of antibiotics (after Covid breakout) has further elevated the detrimental effects on human health. Therefore, this study highlights the relation of microplastics with antibiotic resistance generation. The factors such as uncontrolled use of antibiotics and negligent plastic consumption has been evaluated. Furthermore, the future research prospective was provided that can be helpful in correctly identifying the seriousness of the environmental occurrence of these pollutants.
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Affiliation(s)
- Vivek Kumar Gaur
- Centre for Energy and Environmental Sustainability, Lucknow, 226 029, India; Amity Institute of Biotechnology, Amity University Uttar Pradesh, Lucknow Campus, Lucknow, India; School of Energy and Chemical Engineering, Ulsan National Institute for Science and Technology, Ulsan, 44919, Republic of Korea
| | - Ranjna Sirohi
- Department of Food Technology, School of Health Sciences and Technology, University of Petroleum and Energy Studies, Dehradun, 248 007, Uttarakhand, India
| | - Mohd Ishfaq Bhat
- Department of Post-Harvest Process and Food Engineering, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, 263145, India
| | - Krishna Gautam
- Centre for Energy and Environmental Sustainability, Lucknow, 226 029, India
| | - Poonam Sharma
- Department of Bioengineering, Integral University, Lucknow, India
| | | | - Ashok Pandey
- Centre for Energy and Environmental Sustainability, Lucknow, 226 029, India; Sustainability Cluster, School of Engineering, University of Petroleum and Energy Studies, Dehradun, 248 007, India; Centre for Innovation and Translational Research, CSIR-Indian Institute of Toxicology Research, Lucknow, 226 001, India.
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Mills EG, Martin MJ, Luo TL, Ong AC, Maybank R, Corey BW, Harless C, Preston LN, Rosado-Mendez JA, Preston SB, Kwak YI, Backlund MG, Bennett JW, Mc Gann PT, Lebreton F. A one-year genomic investigation of Escherichia coli epidemiology and nosocomial spread at a large US healthcare network. Genome Med 2022; 14:147. [PMID: 36585742 PMCID: PMC9801656 DOI: 10.1186/s13073-022-01150-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 12/13/2022] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Extra-intestinal pathogenic Escherichia coli (ExPEC) are a leading cause of bloodstream and urinary tract infections worldwide. Over the last two decades, increased rates of antibiotic resistance in E. coli have been reported, further complicating treatment. Worryingly, specific lineages expressing extended-spectrum β-lactamases (ESBLs) and fluoroquinolone resistance have proliferated and are now considered a serious threat. Obtaining contemporary information on the epidemiology and prevalence of these circulating lineages is critical for containing their spread globally and within the clinic. METHODS Whole-genome sequencing (WGS), phylogenetic analysis, and antibiotic susceptibility testing were performed for a complete set of 2075 E. coli clinical isolates collected from 1776 patients at a large tertiary healthcare network in the USA between October 2019 and September 2020. RESULTS The isolates represented two main phylogenetic groups, B2 and D, with six lineages accounting for 53% of strains: ST-69, ST-73, ST-95, ST-131, ST-127, and ST-1193. Twenty-seven percent of the primary isolates were multidrug resistant (MDR) and 5% carried an ESBL gene. Importantly, 74% of the ESBL-E.coli were co-resistant to fluoroquinolones and mostly belonged to pandemic ST-131 and emerging ST-1193. SNP-based detection of possible outbreaks identified 95 potential transmission clusters totaling 258 isolates (12% of the whole population) from ≥ 2 patients. While the proportion of MDR isolates was enriched in the set of putative transmission isolates compared to sporadic infections (35 vs 27%, p = 0.007), a large fraction (61%) of the predicted outbreaks (including the largest cluster grouping isolates from 12 patients) were caused by the transmission of non-MDR clones. CONCLUSION By coupling in-depth genomic characterization with a complete sampling of clinical isolates for a full year, this study provides a rare and contemporary survey on the epidemiology and spread of E. coli in a large US healthcare network. While surveillance and infection control efforts often focus on ESBL and MDR lineages, our findings reveal that non-MDR isolates represent a large burden of infections, including those of predicted nosocomial origins. This increased awareness is key for implementing effective WGS-based surveillance as a routine technology for infection control.
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Affiliation(s)
- Emma G. Mills
- grid.507680.c0000 0001 2230 3166Multidrug-Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research, Silver Spring, MD USA
| | - Melissa J. Martin
- grid.507680.c0000 0001 2230 3166Multidrug-Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research, Silver Spring, MD USA
| | - Ting L. Luo
- grid.507680.c0000 0001 2230 3166Multidrug-Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research, Silver Spring, MD USA
| | - Ana C. Ong
- grid.507680.c0000 0001 2230 3166Multidrug-Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research, Silver Spring, MD USA
| | - Rosslyn Maybank
- grid.507680.c0000 0001 2230 3166Multidrug-Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research, Silver Spring, MD USA
| | - Brendan W. Corey
- grid.507680.c0000 0001 2230 3166Multidrug-Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research, Silver Spring, MD USA
| | - Casey Harless
- grid.507680.c0000 0001 2230 3166Multidrug-Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research, Silver Spring, MD USA
| | - Lan N. Preston
- grid.507680.c0000 0001 2230 3166Multidrug-Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research, Silver Spring, MD USA
| | - Joshua A. Rosado-Mendez
- grid.507680.c0000 0001 2230 3166Multidrug-Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research, Silver Spring, MD USA
| | - Scott B. Preston
- grid.414467.40000 0001 0560 6544Department of Pathology, Walter Reed National Military Medical Center, Bethesda, MD USA
| | - Yoon I. Kwak
- grid.507680.c0000 0001 2230 3166Multidrug-Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research, Silver Spring, MD USA
| | - Michael G. Backlund
- grid.414467.40000 0001 0560 6544Department of Pathology, Walter Reed National Military Medical Center, Bethesda, MD USA
| | - Jason W. Bennett
- grid.507680.c0000 0001 2230 3166Multidrug-Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research, Silver Spring, MD USA
| | - Patrick T. Mc Gann
- grid.507680.c0000 0001 2230 3166Multidrug-Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research, Silver Spring, MD USA
| | - Francois Lebreton
- grid.507680.c0000 0001 2230 3166Multidrug-Resistant Organism Repository and Surveillance Network, Walter Reed Army Institute of Research, Silver Spring, MD USA
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Siriphap A, Kitti T, Khuekankaew A, Boonlao C, Thephinlap C, Thepmalee C, Suwannasom N, Khoothiam K. High prevalence of extended-spectrum beta-lactamase-producing Escherichia coli and Klebsiella pneumoniae isolates: A 5-year retrospective study at a Tertiary Hospital in Northern Thailand. Front Cell Infect Microbiol 2022; 12:955774. [PMID: 36004324 PMCID: PMC9393477 DOI: 10.3389/fcimb.2022.955774] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 07/19/2022] [Indexed: 11/23/2022] Open
Abstract
Background The global emergence and spread of extended-spectrum beta-lactamase (ESBL)-producing Enterobacterales, especially Escherichia coli and Klebsiella pneumoniae, have been recognized as a public health concern as severe infections caused by these microorganisms increase morbidity and mortality. This study aimed to assess the prevalence of ESBL-positive E. coli and K. pneumoniae strains isolated from hospitalized patients in Chiangrai Prachanukroh hospital, Chiangrai province, Thailand. Methods This retrospective analysis was conducted from January 2016 to December 2020. A total of 384,001 clinical specimens were collected aseptically and further cultivated on an appropriate medium. All clinical isolates (one isolate per patient) were identified based on standard laboratory methods. Antibiotic susceptibility testing was performed by the Kirby Bauer disc diffusion technique following CLSI guidelines. ESBL production was screened with ceftazidime and cefotaxime discs based on the CLSI recommendations. Phenotypic confirmation of ESBL production was carried out using a double-disc synergy technique following the CLSI standard. Results Of a total of 384,001 clinical samples analyzed for bacterial species identification, 11,065 (2.9%) tested positive for E. coli and 5,617 (1.5%) for K. pneumoniae. Approximately 42.5% (4,706/11,065) of E. coli and 30.2% (1,697/5,617) of K. pneumoniae isolates were classified as ESBL producers. A higher proportion of ESBL producers was found in patients older than 60 years and male groups. The highest infection rates of ESBL-positive pathogens were observed among patients in a medical unit. ESBL-producing E. coli and K. pneumoniae isolates were predominantly found in urine and sputum, respectively. ESBL producers exhibited a high resistance rate to ampicillin (99.8–100%), cefazolin (100%), cefotaxime (100%), fluoroquinolones, and trimethoprim/sulfamethoxazole. Conclusions This study demonstrated the high prevalence and emerging antibiotic resistance of ESBL-positive E. coli and K. pneumoniae isolates from patients admitted to a provincial hospital in northern Thailand. Most ESBL-producing strains were highly resistant to several antimicrobial agents apart from carbapenems and aminoglycosides. These findings indicated that carbapenems and aminoglycosides should be advised as the first-line drugs of choice for serious infections with ESBL-producing Enterobacterales.
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Affiliation(s)
- Achiraya Siriphap
- Division of Microbiology, School of Medical Sciences, University of Phayao, Phayao, Thailand
| | - Thawatchai Kitti
- Faculty of Oriental Medicine, Chiang Rai College, Chiang Rai, Thailand
| | | | - Chalermchai Boonlao
- Department of Clinical Microbiology, Chiangrai Prachanukroh Hospital, Chiang Rai, Thailand
| | - Chonthida Thephinlap
- Division of Biochemistry, School of Medical Sciences, University of Phayao, Phayao, Thailand
| | - Chutamas Thepmalee
- Division of Biochemistry, School of Medical Sciences, University of Phayao, Phayao, Thailand
| | - Nittiya Suwannasom
- Division of Biochemistry, School of Medical Sciences, University of Phayao, Phayao, Thailand
| | - Krissana Khoothiam
- Division of Microbiology, School of Medical Sciences, University of Phayao, Phayao, Thailand
- *Correspondence: Krissana Khoothiam,
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9
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Xiao S, Tang C, Zeng Q, Xue Y, Chen Q, Chen E, Han L. Antimicrobial Resistance and Molecular Epidemiology of Escherichia coli From Bloodstream Infection in Shanghai, China, 2016-2019. Front Med (Lausanne) 2022; 8:803837. [PMID: 35083253 PMCID: PMC8784657 DOI: 10.3389/fmed.2021.803837] [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: 10/28/2021] [Accepted: 12/03/2021] [Indexed: 11/23/2022] Open
Abstract
Background: Bloodstream infections are recognized as important nosocomial infections. Escherichia coli (E. coli) is the most prevalent Gram-negative bacillary pathogen causing bloodstream infections (BSIs). This retrospective study investigated drug susceptibility and molecular epidemiology of E. coli isolated from patients with BSI in Shanghai, China. Methods: We collected E. coli isolated from the blood cultures of patients with BSI between January 2016 and December 2019. We randomly selected 20 strains each year to investigate antimicrobial resistance, resistance genes, and molecular epidemiological characteristics. Antimicrobial susceptibility testing was performed by the disk diffusion method. PCR was performed to detect extended-spectrum β-lactamases (ESBLs), carbapenemase genes, and housekeeping genes, and phyloviz was applied to analyze multilocus sequence typing (MLST). Results: Penicillins, first- and second-generation cephalosporins and fluoroquinolones have high resistance rates (>60%). Among the 80 randomly selected strains, 47 (58.8%) produced ESBLs, and one produced carbapenemase. Sequencing of resistance genes identified blaCTX−M−14 (34%, 16/47), blaCTX−M−15 (23.4%, 11/47) and blaCTX−M−27 (14.8%, 7/47) as the most prevalent genotypes of ESBLs. ST131 (14/80) was the most prevalent sequence type (ST), followed by ST1193 (10/80), ST648 (7/80). Conclusions: Our findings suggest that amikacin, carbapenems, and piperacillin-tazobactam have relatively low resistance rates and may be the preferred antibiotic regimens for empiric therapy. ST131 and blaCTX−M−14 are still the main prevalent in Shanghai with a rapid increase in the occurrence of ST1193 is rapidly increasing and more diverse blaCTX genes.
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Affiliation(s)
- Shuzhen Xiao
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Clinical Microbiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chenyue Tang
- Faculty of Medical Laboratory Science, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qian Zeng
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Clinical Microbiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yilun Xue
- Faculty of Medical Laboratory Science, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qing Chen
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Clinical Microbiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Erzhen Chen
- Department of Emergency, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lizhong Han
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Clinical Microbiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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10
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Xiao S, Chen T, Wang H, Zeng Q, Chen Q, Yang Z, Han L, Chen E. Drug Susceptibility and Molecular Epidemiology of Klebsiella pneumoniae Bloodstream Infection in ICU Patients in Shanghai, China. Front Med (Lausanne) 2021; 8:754944. [PMID: 34722591 PMCID: PMC8548373 DOI: 10.3389/fmed.2021.754944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 09/10/2021] [Indexed: 01/04/2023] Open
Abstract
Background: Bloodstream infections (BSIs) are recognized as important nosocomial infections. Klebsiella pneumoniae is one of the major causes of bacteremia. This retrospective study focused on drug susceptibility and molecular epidemiology of K. pneumoniae isolated from intensive care unit (ICU) patients with BSI in Shanghai, China. Methods: Consecutive K. pneumoniae isolates were collected from ICU patients. Antibiotic susceptibility testing was conducted by the broth microdilution method. PCR was performed to detect antimicrobial resistance genes. We also completed multilocus sequence typing (MLST) and GoeBURST was used to analyze the result of MLST. Results: A total of 78 K. pneumoniae isolates were enrolled. K. pneumoniae from ICU-BSIs were highly resistant to almost all common antibiotics. The most frequent resistance determinants responsible for extended-spectrum β-lactamase (ESBL) producers were blaCTX−M−14, blaCTX−M−15, and blaCTX−M−55. KPC was the only enzyme, which was detected by the carbapenemase producers. The most principal sequence types (STs) were ST11, ST15, and ST23. Conclusion: This study presents for the first time the antibiotic resistance phenotype and molecular epidemiology of K. pneumoniae isolated from ICU patients with BSIs in Shanghai. ICU-BSI K. pneumoniae is characteristic of a high resistance rate. The occurrence of the KPC-2 enzyme may result from nosocomial clonal dissemination of ST11 K. pneumoniae.
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Affiliation(s)
- Shuzhen Xiao
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Clinical Microbiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tianchi Chen
- Department of Laboratory Medicine, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hairu Wang
- Departments of Clinical Laboratory, Shanxi Provincial People's Hospital, Affiliated of Shanxi Medical University, Taiyuan, China
| | - Qian Zeng
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Clinical Microbiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qing Chen
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Clinical Microbiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhitao Yang
- Emergency Department, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lizhong Han
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Clinical Microbiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Erzhen Chen
- Emergency Department, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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11
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Segala FV, Bavaro DF, Di Gennaro F, Salvati F, Marotta C, Saracino A, Murri R, Fantoni M. Impact of SARS-CoV-2 Epidemic on Antimicrobial Resistance: A Literature Review. Viruses 2021; 13:2110. [PMID: 34834917 PMCID: PMC8624326 DOI: 10.3390/v13112110] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/12/2021] [Accepted: 10/15/2021] [Indexed: 01/08/2023] Open
Abstract
Antimicrobial resistance is an urgent threat to public health and global development; in this scenario, the SARS-CoV2 pandemic has caused a major disruption of healthcare systems and practices. A narrative review was conducted on articles focusing on the impact of COVID-19 on multidrug-resistant gram-negative, gram-positive bacteria, and fungi. We found that, worldwide, multiple studies reported an unexpected high incidence of infections due to methicillin-resistant S. aureus, carbapenem-resistant A. baumannii, carbapenem-resistant Enterobacteriaceae, and C. auris among COVID-19 patients admitted to the intensive care unit. In this setting, inappropriate antimicrobial exposure, environmental contamination, and discontinuation of infection control measures may have driven selection and diffusion of drug-resistant pathogens.
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Affiliation(s)
- Francesco Vladimiro Segala
- Clinic of Infectious Diseases, Catholic University of the Sacred Heart, 00168 Rome, Italy; (F.S.); (R.M.); (M.F.)
| | - Davide Fiore Bavaro
- Clinic of Infectious Diseases, University of Bari, 70121 Bari, Italy; (D.F.B.); (F.D.G.); (A.S.)
| | - Francesco Di Gennaro
- Clinic of Infectious Diseases, University of Bari, 70121 Bari, Italy; (D.F.B.); (F.D.G.); (A.S.)
| | - Federica Salvati
- Clinic of Infectious Diseases, Catholic University of the Sacred Heart, 00168 Rome, Italy; (F.S.); (R.M.); (M.F.)
| | - Claudia Marotta
- General Directorate of Health Prevention, Ministry of Health, 00144 Rome, Italy;
| | - Annalisa Saracino
- Clinic of Infectious Diseases, University of Bari, 70121 Bari, Italy; (D.F.B.); (F.D.G.); (A.S.)
| | - Rita Murri
- Clinic of Infectious Diseases, Catholic University of the Sacred Heart, 00168 Rome, Italy; (F.S.); (R.M.); (M.F.)
- Dipartimento di Scienze di Laboratorio e Infettivologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
| | - Massimo Fantoni
- Clinic of Infectious Diseases, Catholic University of the Sacred Heart, 00168 Rome, Italy; (F.S.); (R.M.); (M.F.)
- Dipartimento di Scienze di Laboratorio e Infettivologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168 Rome, Italy
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12
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Farhadi M, Ahanjan M, Goli HR, Haghshenas MR, Gholami M. High frequency of multidrug-resistant (MDR) Klebsiella pneumoniae harboring several β-lactamase and integron genes collected from several hospitals in the north of Iran. Ann Clin Microbiol Antimicrob 2021; 20:70. [PMID: 34583687 PMCID: PMC8479884 DOI: 10.1186/s12941-021-00476-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 09/21/2021] [Indexed: 01/01/2023] Open
Abstract
Background Klebsiella pneumoniae is one of the leading causes of hospital outbreaks worldwide. Also, antibiotic-resistant K. pneumoniae is progressively being involved in invasive infections with high morbidity and mortality. The aim of the current study was to determine antimicrobial susceptibility patterns and the incidence of resistance genes (integron types and β-lactamase-encoded genes) among clinical isolates of K. pneumoniae. Methods In this cross-sectional study, a total of 100 clinical samples were obtained from hospitalized patients in three teaching hospitals in the north of Iran, from November 2018 and October 2019. Antimicrobial susceptibility testing was performed using disk agar diffusion test in line with CLSI recommendations. For colistin, minimum inhibitory concentration (MIC) was determined using broth microdilution. Based on antibiogram, multi-drug resistant (MDR) and extensive-drug resistant (XDR) strains were detected. Finally, integron types and β-lactamase resistance genes were identified using polymerase chain reaction technique. Results The most and least clinical samples were related to the urine and bronchoalveolar lavage, respectively. Based on the antibiogram results, amikacin and gentamicin exhibited good activity against K. pneumoniae strains in vitro. The high resistance rate (93%) to ampicillin/sulbactam predicts the limited efficacy of this antibiotic, in the hospitals studied. Among all the 100 isolates, the frequency of MDR and XDR phenotypes were 58% and 13%, respectively, while no pan-drug resistant (PDR) strains were found. In the MDR K. pneumoniae strains, the prevalence of blaSHV, blaTEM, blaCTX-M-15, blaKPC, blaOXA-48, blaNDM β-lactamase genes were 91.4%, 82.7%, 79.3%, 29.3%, 36.2% and 6.9%, respectively, however 91.4% of the isolates were carrying intI gene. Class II and III integrons were not detected in any isolates. Conclusion The MDR K. pneumoniae is becoming a serious problem in hospitals, with many strains developing resistance to most available antimicrobials. Our results indicate co-presence of a series of β-lactamase and integron types on the MDR strains recovered from hospitalized patients. The increasing rate of these isolates emphasizes the importance of choosing an appropriate antimicrobial regimen based on antibiotic susceptibility pattern. Supplementary Information The online version contains supplementary material available at 10.1186/s12941-021-00476-1.
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Affiliation(s)
- Mojgan Farhadi
- Department of Microbiology and Virology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mohammad Ahanjan
- Antimicrobial Resistance Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hamid Reza Goli
- Department of Microbiology and Virology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mohammad Reza Haghshenas
- Department of Microbiology and Virology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Mehrdad Gholami
- Department of Microbiology and Virology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran. .,Antimicrobial Resistance Research Center, Communicable Diseases Institute, Mazandaran University of Medical Sciences, Sari, Iran.
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13
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MacKinnon MC, McEwen SA, Pearl DL, Lyytikäinen O, Jacobsson G, Collignon P, Gregson DB, Valiquette L, Laupland KB. Increasing incidence and antimicrobial resistance in Escherichia coli bloodstream infections: a multinational population-based cohort study. Antimicrob Resist Infect Control 2021; 10:131. [PMID: 34488891 PMCID: PMC8422618 DOI: 10.1186/s13756-021-00999-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 08/23/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Escherichia coli is an important pathogen in humans and is the most common cause of bacterial bloodstream infections (BSIs). The objectives of our study were to determine factors associated with E. coli BSI incidence rate and third-generation cephalosporin resistance in a multinational population-based cohort. METHODS We included all incident E. coli BSIs (2014-2018) from national (Finland) and regional (Australia [Canberra], Sweden [Skaraborg], and Canada [Calgary, Sherbrooke, and western interior]) surveillance. Incidence rates were directly age and sex standardized to the European Union 28-country 2018 population. Multivariable negative binomial and logistic regression models estimated factors significantly associated with E. coli BSI incidence rate and third-generation cephalosporin resistance, respectively. The explanatory variables considered for inclusion in both models were year (2014-2018), region (six areas), age (< 70-years-old and ≥ 70-years-old), and sex (female and male). RESULTS We identified 31,889 E. coli BSIs from 40.7 million person-years of surveillance. Overall and third-generation cephalosporin-resistant standardized rates were 87.1 and 6.6 cases/100,000 person-years, respectively, and increased 14.0% and 40.1% over the five-year study. Overall, 7.8% (2483/31889) of E. coli BSIs were third-generation cephalosporin-resistant. Calgary, Canberra, Sherbrooke, and western interior had significantly lower E. coli BSI rates compared to Finland. The significant association between age and E. coli BSI rate varied with sex. Calgary, Canberra, and western interior had significantly greater odds of third-generation cephalosporin-resistant E. coli BSIs compared to Finland. Compared to 2014, the odds of third-generation cephalosporin-resistant E. coli BSIs were significantly increased in 2016, 2017, and 2018. The significant association between age and the odds of having a third-generation cephalosporin-resistant E. coli BSI varied with sex. CONCLUSIONS Increases in overall and third-generation cephalosporin-resistant standardized E. coli BSI rates were clinically important. Overall, E. coli BSI incidence rates were 40-104% greater than previous investigations from the same study areas. Region, sex, and age are important variables when analyzing E. coli BSI rates and third-generation cephalosporin resistance in E. coli BSIs. Considering E. coli is the most common cause of BSIs, this increasing burden and evolving third-generation cephalosporin resistance will have an important impact on human health, especially in aging populations.
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Affiliation(s)
- Melissa C MacKinnon
- Department of Population Medicine, University of Guelph, 50 Stone Rd E, Guelph, ON, N1G 2W1, Canada.
| | - Scott A McEwen
- Department of Population Medicine, University of Guelph, 50 Stone Rd E, Guelph, ON, N1G 2W1, Canada
| | - David L Pearl
- Department of Population Medicine, University of Guelph, 50 Stone Rd E, Guelph, ON, N1G 2W1, Canada
| | - Outi Lyytikäinen
- Department of Health Security, National Institute for Health and Welfare, Helsinki, Finland
| | - Gunnar Jacobsson
- Department of Infectious Diseases, Skaraborg Hospital, Skövde, Sweden.,CARe - Center for Antibiotic Resistance Research, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Peter Collignon
- Department of Infectious Disease and Microbiology, The Canberra Hospital, Garran, ACT, Australia.,Medical School, Australian National University, Acton, ACT, Australia
| | - Daniel B Gregson
- Departments of Medicine, and Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada.,Alberta Health Services, Calgary Zone, Calgary, AB, Canada
| | - Louis Valiquette
- Department of Microbiology-Infectious Diseases, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Kevin B Laupland
- Department of Medicine, Royal Inland Hospital, Kamloops, BC, Canada.,Department of Intensive Care Medicine, Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia.,Faculty of Health, Queensland University of Technology (QUT), Brisbane, QLD, Australia
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14
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Somayaji R, Hantrakun V, Teparrukkul P, Wongsuvan G, Rudd KE, Day NPJ, West TE, Limmathurotsakul D. Comparative clinical characteristics and outcomes of patients with community acquired bacteremia caused by Escherichia coli, Burkholderia pseudomallei and Staphylococcus aureus: A prospective observational study (Ubon-sepsis). PLoS Negl Trop Dis 2021; 15:e0009704. [PMID: 34478439 PMCID: PMC8415581 DOI: 10.1371/journal.pntd.0009704] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 08/04/2021] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Community acquired bacteremia (CAB) is a common cause of sepsis in low and middle-income countries (LMICs). However, knowledge about factors associated with outcomes of CAB in LMICs is limited. METHODOLOGY/PRINCIPAL FINDINGS A prospective observational study (Ubon-sepsis) of adults admitted to a referral hospital with community-acquired infection in Northeastern Thailand was conducted between March 1, 2013 and February 1, 2017. In the present analysis, patients with a blood culture collected within 24 hours of admission that was positive for one of the three most common pathogens were studied. Clinical features, management, and outcomes of patients with each cause of CAB were compared. Of 3,806 patients presenting with community-acquired sepsis, 155, 131 and 37 patients had a blood culture positive for Escherichia coli, Burkholderia pseudomallei and Staphylococcus aureus, respectively. Of these 323 CAB patients, 284 (89%) were transferred from other hospitals. 28-day mortality was highest in patients with B. pseudomallei bactaeremia (66%), followed by those with S. aureus bacteraemia (43%) and E. coli (19%) bacteraemia. In the multivariable Cox proportional hazards model adjusted for age, sex, transfer from another hospital, empirical antibiotics prior to or during the transfer, and presence of organ dysfunction on admission, B. pseudomallei (aHR 3.78; 95%CI 2.31-6.21) and S. aureus (aHR 2.72; 95%CI 1.40-5.28) bacteraemias were associated with higher mortality compared to E. coli bacteraemia. Receiving empirical antibiotics recommended for CAB caused by the etiologic organism prior to or during transfer was associated with survival (aHR 0.58; 95%CI 0.38-0.88). CONCLUSIONS/SIGNIFICANCE Mortality of patients with CAB caused by B. pseudomallei was higher than those caused by S. aureus and E. coli, even after adjusting for presence of organ dysfunction on admission and effectiveness of empirical antibiotics received. Improving algorithms or rapid diagnostic tests to guide early empirical antibiotic may be key to improving CAB outcomes in LMICs.
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Affiliation(s)
- Ranjani Somayaji
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Viriya Hantrakun
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Prapit Teparrukkul
- Department of Internal Medicine, Sunpasitthiprasong Hospital, Ubon Ratchathani, Thailand
| | - Gumphol Wongsuvan
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Kristina E. Rudd
- Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Nicholas P. J. Day
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Churchill Hospital, Oxford, United Kingdom
| | - T. Eoin West
- Department of Pulmonology, Critical Care and Sleep Medicine, University of Washington, Seattle, Washington, United States of America
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Direk Limmathurotsakul
- Mahidol Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
- Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Churchill Hospital, Oxford, United Kingdom
- Department of Tropical Hygiene, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
- * E-mail:
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15
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Escherichia coli bloodstream infections in the western interior of British Columbia, Canada: a population-based cohort study. Epidemiol Infect 2021; 149:e195. [PMID: 34353396 PMCID: PMC8414597 DOI: 10.1017/s0950268821001874] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Our population-based study objectives were to describe characteristics and outcomes of Escherichia coli bloodstream infections (BSIs), and to evaluate factors associated with outcomes. We included incident E. coli BSIs from western interior residents (British Columbia, Canada; 04/2010–03/2020). We obtained data including patient demographics, location of onset, infection focus, Charlson comorbidity index (CCI), antimicrobial resistance, 30-day all-cause mortality and length of hospital stay (LOS). Using multivariable logistic regression models fitted with generalised estimating equations, we estimated factors associated with 30-day mortality and long post-infection LOS (>75th percentile). We identified 1080 incident E. coli BSIs in 1009 patients. The crude incidence and 30-day mortality rates were 59.1 BSIs and 6.8 deaths/100 000 person-years, respectively. The 30-day case fatality risk was 11.5%. Compared to community-acquired E. coli BSIs, either healthcare-associated or nosocomial cases had higher odds of 30-day mortality. Older cases, non-urogenital BSI foci and CCI ⩾ 3 had higher odds of 30-day mortality compared to younger cases, urogenital foci and CCI < 3. In patients that survived to discharge, those with extended-spectrum β-lactamase (ESBL)-producing E. coli BSIs, nosocomial BSIs, and CCI ⩾ 3 had higher odds of long post-infection LOS compared to those with non-ESBL-producing, community-acquired and healthcare-associated, and CCI < 3. There is a substantial disease burden from E. coli BSIs.
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16
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MacKinnon MC, McEwen SA, Pearl DL, Lyytikäinen O, Jacobsson G, Collignon P, Gregson DB, Valiquette L, Laupland KB. Mortality in Escherichia coli bloodstream infections: a multinational population-based cohort study. BMC Infect Dis 2021; 21:606. [PMID: 34172003 PMCID: PMC8229717 DOI: 10.1186/s12879-021-06326-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 06/14/2021] [Indexed: 11/16/2022] Open
Abstract
Background Escherichia coli is the most common cause of bloodstream infections (BSIs) and mortality is an important aspect of burden of disease. Using a multinational population-based cohort of E. coli BSIs, our objectives were to evaluate 30-day case fatality risk and mortality rate, and determine factors associated with each. Methods During 2014–2018, we identified 30-day deaths from all incident E. coli BSIs from surveillance nationally in Finland, and regionally in Sweden (Skaraborg) and Canada (Calgary, Sherbrooke, western interior). We used a multivariable logistic regression model to estimate factors associated with 30-day case fatality risk. The explanatory variables considered for inclusion were year (2014–2018), region (five areas), age (< 70-years-old, ≥70-years-old), sex (female, male), third-generation cephalosporin (3GC) resistance (susceptible, resistant), and location of onset (community-onset, hospital-onset). The European Union 28-country 2018 population was used to directly age and sex standardize mortality rates. We used a multivariable Poisson model to estimate factors associated with mortality rate, and year, region, age and sex were considered for inclusion. Results From 38.7 million person-years of surveillance, we identified 2961 30-day deaths in 30,923 incident E. coli BSIs. The overall 30-day case fatality risk was 9.6% (2961/30923). Calgary, Skaraborg, and western interior had significantly increased odds of 30-day mortality compared to Finland. Hospital-onset and 3GC-resistant E. coli BSIs had significantly increased odds of mortality compared to community-onset and 3GC-susceptible. The significant association between age and odds of mortality varied with sex, and contrasts were used to interpret this interaction relationship. The overall standardized 30-day mortality rate was 8.5 deaths/100,000 person-years. Sherbrooke had a significantly lower 30-day mortality rate compared to Finland. Patients that were either ≥70-years-old or male both experienced significantly higher mortality rates than those < 70-years-old or female. Conclusions In our study populations, region, age, and sex were significantly associated with both 30-day case fatality risk and mortality rate. Additionally, 3GC resistance and location of onset were significantly associated with 30-day case fatality risk. Escherichia coli BSIs caused a considerable burden of disease from 30-day mortality. When analyzing population-based mortality data, it is important to explore mortality through two lenses, mortality rate and case fatality risk. Supplementary Information The online version contains supplementary material available at 10.1186/s12879-021-06326-x.
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Affiliation(s)
- Melissa C MacKinnon
- Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada.
| | - Scott A McEwen
- Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada
| | - David L Pearl
- Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada
| | - Outi Lyytikäinen
- Department of Health Security, National Institute for Health and Welfare, Helsinki, Finland
| | - Gunnar Jacobsson
- Department of Infectious Diseases, Skaraborg Hospital, Skövde, Sweden.,CARe - Center for Antibiotic Resistance Research, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Peter Collignon
- Department of Infectious Disease and Microbiology, The Canberra Hospital, Garran, Australian Capital Territory, Australia.,Medical School, Australian National University, Acton, Australian Capital Territory, Australia
| | - Daniel B Gregson
- Departments of Medicine, and Pathology and Laboratory Medicine, University of Calgary, Calgary, Alberta, Canada.,Alberta Health Services, Calgary Zone, Calgary, Alberta, Canada
| | - Louis Valiquette
- Department of Microbiology-Infectious Diseases, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Kevin B Laupland
- Department of Medicine, Royal Inland Hospital, Kamloops, British Columbia, Canada.,Department of Intensive Care Medicine, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia.,Faculty of Health, Queensland University of Technology, Brisbane, Queensland, Australia
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17
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Katip W, Yoodee J, Uitrakul S, Oberdorfer P. Efficacy of loading dose colistin versus carbapenems for treatment of extended spectrum beta lactamase producing Enterobacteriaceae. Sci Rep 2021; 11:18. [PMID: 33420122 PMCID: PMC7794528 DOI: 10.1038/s41598-020-78098-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 11/17/2020] [Indexed: 11/24/2022] Open
Abstract
Colistin provides in vitro activity against numerous ESBL-producing and carbapenem-resistant bacteria. However, clinical information with respect to its utilization in infection caused by ESBL producers is limited. The aim of this study was a comparison of mortality rates of loading dose (LD) colistin and carbapenems as definitive therapies in a cohort of patients with infections caused by ESBL-producing Escherichia coli and Klebsiella pneumoniae. A retrospective cohort study in 396 patients with ESBL-producing E.coli and K.pneumoniae infection at a university-affiliated hospital was conducted between 1 January 2005 and 30 June 2015 to compare outcomes of infected patients who received LD colistin (95 patients) with carbapenems (301 patients). The three primary outcomes were 30-day mortality, clinical response and microbiological response. The most common infection types were urinary tract infection (49.49%), followed by pneumonia (40.66%), bacteremia (13.64%), skin and soft tissue infections (4.80%) and intra-abdominal infection (3.03%). LD colistin group provided higher 30-day mortality when compared with carbapenems group (HR 7.97; 95% CI 3.68 to 17.25; P = 0.001). LD colistin was also independently associated with clinical failure (HR 4.30; 95% CI 1.93 to 9.57; P = 0.001) and bacteriological failure (HR 9.49; 95% CI 3.76 to 23.96; P = 0.001) when compared with those who received carbapenems. LD colistin treatment was associated with poorer outcomes, i.e. mortality rate, clinical response and microbiological response. Moreover, when adjusted confounding factors, LD colistin was still less effective than carbapenems. It should be noted that, however, the use of Vitek-2 to assess colistin susceptibility could provide inaccurate results. Also, the difference in baseline characteristics could still remain in retrospective study although compensation by hazard ratio adjustment was performed. Therefore, clinical utilization of LD colistin should be recommended as an alternative for treatment ESBL-producing Enterobacteriaceae only in the circumstances where carbapenems cannot be utilized, but this recommendation must be considered carefully.
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Affiliation(s)
- Wasan Katip
- Department of Pharmaceutical Care, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, 50200, Thailand. .,Epidemiology Research Group of Infectious Disease (ERGID), Chiang Mai University, Chiang Mai, 50200, Thailand.
| | - Jukapun Yoodee
- Department of Pharmaceutical Care, Faculty of Pharmacy, Chiang Mai University, Chiang Mai, 50200, Thailand
| | - Suriyon Uitrakul
- Department of Pharmaceutical Care, School of Pharmacy, Walailak University, Nakhon Si Thammarat, 80160, Thailand
| | - Peninnah Oberdorfer
- Epidemiology Research Group of Infectious Disease (ERGID), Chiang Mai University, Chiang Mai, 50200, Thailand.,Division of Infectious Diseases, Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand
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18
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Assawatheptawee K, Kiddee A, Na-Udom A, Wangteeraprasert A, Treebupachatsakul P, Niumsup PR. Acquisition of extended-spectrum β-lactamase-producing Escherichia coli and Klebsiella pneumoniae in intensive care units in Thailand. J Infect Chemother 2020; 27:401-405. [PMID: 33132043 DOI: 10.1016/j.jiac.2020.10.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 09/27/2020] [Accepted: 10/14/2020] [Indexed: 10/23/2022]
Abstract
This study aimed to assess the prevalence and associated risk factors for extended-spectrum β-lactamase (ESBL)-producing Escherichia coli and Klebsiella pneumoniae (ESBL-EK) acquisition among patients staying in medical and surgical Intensive Care Units (ICU) in Northern Thailand. Rectal swabs were collected from 206 ICU patients upon admission and discharge. Overall, the ESBL-EK acquisition rate among patients during ICU stay was 29.6%. Acquisition rate was significantly higher for K. pneumoniae (20.9%) than that of E. coli (12.1%) (p = 0.024). Multivariate logistic regression analysis identified the use of third generation cephalosporin (p = 0.008) as a risk factor for ESBL-EK acquisition. Sixty-eight ESBL-EK isolates (25 E. coli and 43 K. pneumoniae) were recovered. The majority of ESBL-EK isolates (≥88%) were resistant to ceftazidime, cefepime and aztreonam. Fifty-two acquired ESBL-EK isolates (76.5%) were positive for blaCTX-M and 4 K. pneumoniae isolates simultaneously carried blaNDM-1. Our results reveal that ICU patients could acquire ESBL-EK during hospitalization and the use of third generation cephalosporin should be strictly controlled to prevent the acquisition of ESBL-EK among ICU patients.
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Affiliation(s)
- Kanit Assawatheptawee
- Department of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand
| | - Anong Kiddee
- Department of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand
| | - Anamai Na-Udom
- Department of Mathematics, Faculty of Science, Naresuan University, Phitsanulok, 65000, Thailand
| | | | | | - Pannika R Niumsup
- Department of Microbiology and Parasitology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000, Thailand.
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19
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Rana R, Awasthi R, Sharma B, Kulkarni GT. Nanoantibiotic Formulations to Combat Antibiotic Resistance - Old Wine in a New Bottle. ACTA ACUST UNITED AC 2020; 13:174-183. [PMID: 31544718 DOI: 10.2174/1872211313666190911124626] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 08/13/2019] [Accepted: 08/19/2019] [Indexed: 01/03/2023]
Abstract
Antibiotic resistance is becoming one of the major obstacles to treatment success in various pathological conditions. Development process of a new antimicrobial agent is slow and difficult, whereas bacterial resistance is decreasing the arsenal of existing antibiotics. Therefore, there is a need to develop novel antibiotic formulations to combat the resistance of existing antibiotics. Nanoparticles are investigated as novel antibiotic formulation, but are often inefficient in practical applications. Nanotechnology presents a new frontier to overcome the issue of antibiotic resistance through the development of functionalized particles. Balance of physicochemical characteristics such as small particle size and high drug loading capacity along with improved stability are the challenges associated with large scale manufacturing of nanoantibiotic formulations. In the last 1-2 decades, a gradual increase in patents on nanoantibiotic formulations has been noted to address the resistance issues of antibiotic. The aim of this review is to consolidate recently-investigated nanoantibiotic formulations to combat antibiotic resistance.
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Affiliation(s)
- Rachna Rana
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University Uttar Pradesh, Sec 125, Noida, 201303, Uttar Pradesh, India
| | - Rajendra Awasthi
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University Uttar Pradesh, Sec 125, Noida, 201303, Uttar Pradesh, India
| | - Bhupesh Sharma
- Department of Pharmacology, Amity Institute of Pharmacy, Amity University Uttar Pradesh, Sec 125, Noida, 201303, Uttar Pradesh, India
| | - Giriraj T Kulkarni
- Department of Pharmaceutics, Amity Institute of Pharmacy, Amity University Uttar Pradesh, Sec 125, Noida, 201303, Uttar Pradesh, India
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20
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Pholwat S, Pongpan T, Chinli R, Rogawski McQuade ET, Thaipisuttikul I, Ratanakorn P, Liu J, Taniuchi M, Houpt ER, Foongladda S. Antimicrobial Resistance in Swine Fecal Specimens Across Different Farm Management Systems. Front Microbiol 2020; 11:1238. [PMID: 32625181 PMCID: PMC7311580 DOI: 10.3389/fmicb.2020.01238] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 05/14/2020] [Indexed: 11/16/2022] Open
Abstract
Antimicrobial use in agricultural animals is known to be associated with increases in antimicrobial resistance. Most prior studies have utilized culture and susceptibility testing of select organisms to document these phenomena. In this study we aimed to detect 66 antimicrobial resistance (AMR) genes for 10 antimicrobial agent classes directly in swine fecal samples using our previously developed antimicrobial resistance TaqMan array card (AMR-TAC) across three different swine farm management systems. This included 38 extensive antimicrobial use (both in treatment and feed), 30 limited antimicrobial use (treatment only), and 30 no antimicrobial use farms. The number of resistance genes detected in extensive antimicrobial use farms was higher than in limited and no antimicrobial use farms (28.2 genes ± 4.2 vs. 24.0 genes ± 4.1 and 22.8 genes ± 3.6, respectively, p < 0.05). A principal component analysis and hierarchical clustering of the AMR gene data showed the extensive use farm samples were disparate from the limited and no antimicrobial use farms. The prevalence of resistance genes in extensive use farms was significantly higher than the other farm categories for 18 resistance genes including bla SHV, bla CTX-M1 group, bla CTX-M9 group, bla VEB, bla CMY2-LAT, aac(6')-lb-cr, qnrB1, gyrA83L-E. coli, armA, rmtB, aac(3)-IIa, mphA, 23S rRNA 2075G-Campylobacter spp., mcr-1, catA1, floR, dfrA5-14, and dfrA17. These genotypic findings were supported by phenotypic susceptibility results on fecal E. coli isolates. To examine the timing of AMR gene abundance in swine farms, we also performed a longitudinal study in pigs. The results showed that AMR prevalence occurred both early, presumably from mothers, as well as after weaning, presumably from the environment. In summary, detection of AMR genes directly in fecal samples can be used to qualitatively and quantitatively monitor AMR in swine farms.
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Affiliation(s)
- Suporn Pholwat
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Tawat Pongpan
- Swine Veterinarian Service, Charoen Pokphand Foods PCL, Bangkok, Thailand
| | - Rattapha Chinli
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Elizabeth T. Rogawski McQuade
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Iyarit Thaipisuttikul
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Parntep Ratanakorn
- Faculty of Veterinary Science, Mahidol University, Nakhon Pathom, Thailand
| | - Jie Liu
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Mami Taniuchi
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Eric R. Houpt
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Suporn Foongladda
- Department of Microbiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
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21
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Mahdiyah D, Farida H, Riwanto I, Mustofa M, Wahjono H, Laksana Nugroho T, Reki W. Screening of Indonesian peat soil bacteria producing antimicrobial compounds. Saudi J Biol Sci 2020; 27:2604-2611. [PMID: 32994717 PMCID: PMC7499089 DOI: 10.1016/j.sjbs.2020.05.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 05/18/2020] [Accepted: 05/18/2020] [Indexed: 11/02/2022] Open
Abstract
The development and world-wide spread of multidrug-resistant (MDR) bacteria have a high concern in the medicine, especially the extended-spectrum of beta-lactamase (ESBL) producing Escherichia coli and methicillin-resistant Staphylococcus aureus (MRSA). There are currently very limited effective antibiotics to treat infections caused by MDR bacteria. Peat-soil is a unique environment in which bacteria have to compete each other to survive, for instance, by producing antimicrobial substances. This study aimed to isolate bacteria from peat soils from South Kalimantan Indonesia, which capable of inhibiting the growth of Gram-positive and Gram-negative bacteria. Isolates from peat soil were grown and identified phenotypically. The cell-free supernatant was obtained from broth culture by centrifugation and was tested by agar well-diffusion technique against non ESBL-producing E. coli ATCC 25922, ESBL-producing E. coli ATCC 35218, methicillin susceptible Staphylococcus aureus (MSSA) ATCC 29,213 and MRSA ATCC 43300. Putative antimicrobial compounds were separated using SDS-PAGE electrophoresis and purified using electroelution method. Antimicrobial properties of the purified compounds were confirmed by measuring the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). In total 28 isolated colonies were recovered; three (25PS, 26PS, and 27PS) isolates produced proteins with strong antimicrobial activities against both reference strains. The substance of proteins from three isolates exerted strong antimicrobial activity against ESBL-producing E. coli ATCC 35,218 (MIC = 2,80 µg/mL (25PS), 3,76 µg/mL (26PS), and 2,41 µg/mL (27PS), and MRSA ATCC 43,300 (MIC = 4,20 µg/mL (25PS), 5,65 µg/mL (26PS), and 3,62 µg/mL (27PS), and also had the ability bactericidal properties against the reference strains. There were isolates from Indonesian peat which were potentials sources of new antimicrobials.
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Affiliation(s)
- Dede Mahdiyah
- Department of Pharmacy, Faculty of Health, Sari Mulia University, Banjarmasin, Indonesia.,Post Graduate Program, Faculty of Medicine, Diponegoro University, Semarang, Indonesia
| | - Helmia Farida
- Department of Clinical Microbiology, Faculty of Medicine, Diponegoro University, Semarang, Indonesia
| | - Ignatius Riwanto
- Department of Surgery, Faculty of Medicine, Diponegoro University, Semarang, Indonesia
| | - Mustofa Mustofa
- Department of Pharmacology and Therapy, Faculty of Medicine, Public Health and Nursing, Gadjah Mada University, Yogyakarta, Indonesia
| | - Hendro Wahjono
- Department of Clinical Microbiology, Faculty of Medicine, Diponegoro University, Semarang, Indonesia
| | - Tri Laksana Nugroho
- Department Pharmacology, Faculty of Medicine, Diponegoro University, Semarang, Indonesia
| | - Winarto Reki
- Department of Clinical Microbiology, Faculty of Medicine, Diponegoro University, Semarang, Indonesia
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22
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Musa BM, Imam H, Lendel A, Abdulkadir I, Gumi HS, Aliyu MH, Habib AG. The burden of extended-spectrum β-lactamase-producing Enterobacteriaceae in Nigeria: a systematic review and meta-analysis. Trans R Soc Trop Med Hyg 2020; 114:241-248. [PMID: 31925440 DOI: 10.1093/trstmh/trz125] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/18/2019] [Accepted: 11/04/2019] [Indexed: 11/13/2022] Open
Abstract
Abstract
Antibiotic resistance on account of extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-PE) has become a major public health concern in developing countries. The presence of ESBL-PE is associated with increased morbidity, mortality and healthcare costs. There is no active antimicrobial surveillance mechanism in Nigeria. The aim of this study is to determine a precise estimate of the burden of ESBL-PE in Nigeria. We employed Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA) guidelines and searched electronic databases for suitable studies. We derived pooled prevalence estimates using random effects models and assessed trends with meta-regression. We found 208 studies, with 38 satisfying our inclusion criteria. The overall pooled prevalence of ESBL-PE in Nigeria was 34.6% (95% CI 26.8 to 42.3%) and increased at a rate of 0.22% per year (p for trend=0.837). In summary, we found the prevalence of ESBL-PE in Nigeria to be high and recommend a robust national survey to provide a more detailed picture of the epidemiology of ESBL-PE in Nigeria.
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Affiliation(s)
- Baba M Musa
- Department of Medicine, Bayero University/Aminu Kano Teaching Hospital, Kano, Nigeria. 700241
- Africa Center of Excellence of Population Health and Policy (ACEPHAP) Bayero University, Kano, Nigeria
| | - Hassana Imam
- Department of Medicine, Bayero University/Aminu Kano Teaching Hospital, Kano, Nigeria. 700241
| | - Anastasia Lendel
- Center for Medicine, Health and Society 300 Calhoun Hall, Vanderbilt University, Nashville, TN 37240, USA
| | - Isa Abdulkadir
- Department of Pediatrics, Ahmadu Bello University Teaching Hospital,Zaria, Nigeria
| | - Halima S Gumi
- North Devon District Hospital, Barnstable, EX31 1NR, UK
| | - Muktar H Aliyu
- Vanderbilt Institute for Global Health, 2525 West End Avenue, Suite 725, Nashville, Tennessee, 37203-1738, USA
| | - Abdulrazaq G Habib
- Department of Medicine, Bayero University/Aminu Kano Teaching Hospital, Kano, Nigeria. 700241
- Africa Center of Excellence of Population Health and Policy (ACEPHAP) Bayero University, Kano, Nigeria
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23
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Hetzer B, Orth-Höller D, Würzner R, Kreidl P, Lackner M, Müller T, Knabl L, Geisler-Moroder DR, Mellmann A, Sesli Ö, Holzknecht J, Noce D, Boonpala O, Akarathum N, Chotinaruemol S, Prelog M, Oberdorfer P. "Enhanced acquisition of antibiotic-resistant intestinal E. coli during the first year of life assessed in a prospective cohort study". Antimicrob Resist Infect Control 2019; 8:79. [PMID: 31139362 PMCID: PMC6528363 DOI: 10.1186/s13756-019-0522-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 04/10/2019] [Indexed: 01/15/2023] Open
Abstract
Background Increasing bacterial resistance to antibiotics is a serious problem worldwide. We sought to record the acquisition of antibiotic-resistant Escherichia coli (E. coli) in healthy infants in Northern Thailand and investigated potential determinants. Methods Stool samples from 142 infants after birth, at ages 2wk, 2mo, 4 to 6mo, and 1y, and parent stool samples were screened for E. coli resistance to tetracycline, ampicillin, co-trimoxazole, and cefazoline by culture, and isolates were further investigated for multiresistance by disc diffusion method. Pulsed-field gel electrophoresis was performed to identify persistent and transmitted strains. Genetic comparison of resistant and transmitted strains was done by multilocus sequence typing (MLST) and strains were further investigated for extra- and intra-intestinal virulence factors by multiplex PCR. Results Forty-seven (33%) neonatal meconium samples contained resistant E. coli. Prevalence increased continuously: After 1y, resistance proportion (tetracycline 80%, ampicillin 72%, co-trimoxazole 66%, cefazoline 35%) almost matched those in parents. In 8 infants (6%), identical E. coli strains were found in at least 3 sampling time points (suggesting persistence). Transmission of resistant E. coli from parents to child was observed in only 8 families. MLST showed high diversity. We could not identify any virulence genes or factors associated with persistence, or transmission of resistant E. coli. Full-term, vaginal birth and birth in rural hospital were identified as risk factors for early childhood colonization with resistant E. coli. Conclusion One third of healthy Thai neonates harboured antibiotic-resistant E. coli in meconium. The proportion of resistant E. coli increased during the first year of life almost reaching the value in adults. We hypothesize that enhancement of infection control measures and cautious use of antibiotics may help to control further increase of resistance. Electronic supplementary material The online version of this article (10.1186/s13756-019-0522-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Benjamin Hetzer
- 1Department of Pediatrics I, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria
| | - Dorothea Orth-Höller
- 2Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraße 41/III, 6020 Innsbruck, Austria
| | - Reinhard Würzner
- 2Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraße 41/III, 6020 Innsbruck, Austria
| | - Peter Kreidl
- 2Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraße 41/III, 6020 Innsbruck, Austria
| | - Michaela Lackner
- 2Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraße 41/III, 6020 Innsbruck, Austria
| | - Thomas Müller
- 1Department of Pediatrics I, Medical University of Innsbruck, Anichstraße 35, 6020 Innsbruck, Austria
| | - Ludwig Knabl
- 2Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraße 41/III, 6020 Innsbruck, Austria
| | - Daniel Rudolf Geisler-Moroder
- 2Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraße 41/III, 6020 Innsbruck, Austria
| | - Alexander Mellmann
- 3Institute of Hygiene, University Hospital Münster, Robert-Koch-Strasse 41, 48149 Münster, Germany
| | - Özcan Sesli
- 2Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraße 41/III, 6020 Innsbruck, Austria
| | - Jeanett Holzknecht
- 2Division of Hygiene and Medical Microbiology, Medical University of Innsbruck, Schöpfstraße 41/III, 6020 Innsbruck, Austria
| | - Damia Noce
- 4Center for Biomedicine, European Academy of Bolzano/Bozen (EURAC), Affiliated to the University of Lübeck, Via Galvani 31, 39100 Bolzano, Italy
| | - Orawan Boonpala
- 5Division of Infectious Diseases, Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | | | - Somporn Chotinaruemol
- 5Division of Infectious Diseases, Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
| | - Martina Prelog
- 7Department of Pediatrics, University Hospital Würzburg, Josef-Schneider-Strasse 2, 97080 Würzburg, Germany
| | - Peninnah Oberdorfer
- 5Division of Infectious Diseases, Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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24
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Rhodes J, Jorakate P, Makprasert S, Sangwichian O, Kaewpan A, Akarachotpong T, Srisaengchai P, Thamthitiwat S, Khemla S, Yuenprakhon S, Paveenkittiporn W, Kerdsin A, Whistler T, Baggett HC, Gregory CJ. Population-based bloodstream infection surveillance in rural Thailand, 2007-2014. BMC Public Health 2019; 19:521. [PMID: 32326935 PMCID: PMC6696817 DOI: 10.1186/s12889-019-6775-4] [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] [Indexed: 11/26/2022] Open
Abstract
Background Bloodstream infection (BSI) surveillance is essential to characterize the public health threat of bacteremia. We summarize BSI epidemiology in rural Thailand over an eight year period. Methods Population-based surveillance captured clinically indicated blood cultures and associated antimicrobial susceptibility results performed in all 20 hospitals in Nakhon Phanom (NP) and Sa Kaeo (SK) provinces. BSIs were classified as community-onset (CO) when positive cultures were obtained ≤2 days after hospital admission and hospital-onset (HO) thereafter. Hospitalization denominator data were available for incidence estimates for 2009–2014. Results From 2007 to 2014 a total of 11,166 BSIs were identified from 134,441 blood cultures. Annual CO BSI incidence ranged between 89.2 and 123.5 cases per 100,000 persons in SK and NP until 2011. Afterwards, CO incidence remained stable in SK and increased in NP, reaching 155.7 in 2013. Increases in CO BSI incidence over time were limited to persons aged ≥50 years. Ten pathogens, in rank order, accounted for > 65% of CO BSIs in both provinces, all age-groups, and all years: Escherichia coli, Klebsiella pneumoniae, Burkholderia pseudomallei, Staphylococcus aureus, Salmonella non-typhi spp., Streptococcus pneumoniae, Acinetobacter spp., Streptococcus agalactiae, Streptococcus pyogenes, Pseudomonas aeruginosa. HO BSI incidence increased in NP from 0.58 cases per 1000 hospitalizations in 2009 to 0.91 in 2014, but were higher (ranging from 1.9 to 2.3) in SK throughout the study period. Extended-spectrum beta-lactamase production among E. coli isolates and multi-drug resistance among Acinetobacter spp. isolates was common (> 25% of isolates), especially among HO cases (> 50% of isolates), and became more common over time, while methicillin-resistance among S. aureus isolates (10%) showed no clear trend. Carbapenem-resistant Enterobacteriaceae were documented in 2011–2014. Conclusions Population-based surveillance documented CO BSI incidence estimates higher than previously reported from Thailand and the region, with temporal increases seen in older populations. The most commonly observed pathogens including resistance profiles were similar to leading pathogens and resistance profiles worldwide, thus; prevention strategies with demonstrated success elsewhere may prove effective in Thailand. Electronic supplementary material The online version of this article (10.1186/s12889-019-6775-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Julia Rhodes
- Global Disease Detection Center, Thailand Ministry of Public Health (MOPH) - United States Centers for Disease Control and Prevention (CDC) Collaboration, Nonthaburi, Thailand.
| | - Possawat Jorakate
- Global Disease Detection Center, Thailand Ministry of Public Health (MOPH) - United States Centers for Disease Control and Prevention (CDC) Collaboration, Nonthaburi, Thailand
| | - Sirirat Makprasert
- Global Disease Detection Center, Thailand Ministry of Public Health (MOPH) - United States Centers for Disease Control and Prevention (CDC) Collaboration, Nonthaburi, Thailand
| | - Ornuma Sangwichian
- Global Disease Detection Center, Thailand Ministry of Public Health (MOPH) - United States Centers for Disease Control and Prevention (CDC) Collaboration, Nonthaburi, Thailand
| | - Anek Kaewpan
- Global Disease Detection Center, Thailand Ministry of Public Health (MOPH) - United States Centers for Disease Control and Prevention (CDC) Collaboration, Nonthaburi, Thailand
| | - Thantapat Akarachotpong
- Global Disease Detection Center, Thailand Ministry of Public Health (MOPH) - United States Centers for Disease Control and Prevention (CDC) Collaboration, Nonthaburi, Thailand
| | - Prasong Srisaengchai
- Global Disease Detection Center, Thailand Ministry of Public Health (MOPH) - United States Centers for Disease Control and Prevention (CDC) Collaboration, Nonthaburi, Thailand
| | - Somsak Thamthitiwat
- Global Disease Detection Center, Thailand Ministry of Public Health (MOPH) - United States Centers for Disease Control and Prevention (CDC) Collaboration, Nonthaburi, Thailand
| | | | | | - Wantana Paveenkittiporn
- Department of Medical Sciences, National Institute of Health, Ministry of Public Health, Nonthaburi, Thailand
| | - Anusak Kerdsin
- Department of Medical Sciences, National Institute of Health, Ministry of Public Health, Nonthaburi, Thailand.,Faculty of Public Health, Kasetsart University Chalermphrakiat, Sakon Nakhon Province, Thailand
| | - Toni Whistler
- Global Disease Detection Center, Thailand Ministry of Public Health (MOPH) - United States Centers for Disease Control and Prevention (CDC) Collaboration, Nonthaburi, Thailand.,Division of Global Health Protection, Center for Global Health, CDC, Atlanta, GA, USA
| | - Henry C Baggett
- Global Disease Detection Center, Thailand Ministry of Public Health (MOPH) - United States Centers for Disease Control and Prevention (CDC) Collaboration, Nonthaburi, Thailand.,Division of Global Health Protection, Center for Global Health, CDC, Atlanta, GA, USA
| | - Christopher J Gregory
- Global Disease Detection Center, Thailand Ministry of Public Health (MOPH) - United States Centers for Disease Control and Prevention (CDC) Collaboration, Nonthaburi, Thailand.,Division of Global Health Protection, Center for Global Health, CDC, Atlanta, GA, USA
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