Prevalence of Extended Spectrum Beta Lactamase Producing Bacteria in Two Surgical Wards of a General Hospital

Abstract Colonisation of gastrointestinal tract by extended spectrum beta lactamase (ESBL)-producing Gram-negative bacteria is a source for infections. The present work is a prospective study in Latvia aimed to determine the role of two surgical profile wards in transmission of ESBL-producing bacteria. Differences between hospital wards were not analysed due to low number of patients. We have also determined a correlation between the duration of hospitalisation and risk of ESBL colonisation. Tests for ESBL-producing bacteria were made twice for 136 patients — upon admission and upon discharge from the hospital. Of them, 21 (15.4%) patients already were ESBL-positive at the time of admission and 115 (84.6%) patients were ESBL-negative. Upon discharge from hospital, 45 (33.1%) patients were ESBL-positive, one patient was ESBL-negative, and 25 (18.4%) of ESBL-positive cases had emerged during hospitalisation. In total, 46 (33.8%) from 136 patients were ESBL-positive and ESBL was positive in 51 bacterial isolates. On discharge from hospital, the newly acquired ESBL-positive bacterial isolates were K. pneumoniae (n = 18), E. coli (n = 7) and P. mirabilis (n = 3). The prevalence of ESBL-positive E. coli from all detected E. coli was 7.0% and from all Klebsiella spp. — 88.9% in gut flora. Analysis of patientassociated wound infections did not show correlation between the ESBL-producing gut microbiota and the bacterial species involved in wound infection.

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Genomic analysis of extended-spectrum beta-lactamase (ESBL) producing Escherichia coli colonising adults in Blantyre, Malawi reveals previously undescribed diversity.

10.1101/2021.10.07.463523 ◽

2021 ◽

Author(s):

Joseph M Lewis ◽

Madalitso Mphasa ◽

Rachel Banda ◽

Mathew A Beale ◽

Jane Mallewa ◽

...

Keyword(s):

Escherichia Coli ◽

Bacterial Species ◽

Core Gene ◽

Sub Saharan Africa ◽

Beta Lactamase ◽

Gene Phylogeny ◽

Extended Spectrum Beta Lactamase ◽

E Coli ◽

Extended Spectrum ◽

Local Selection

Escherichia coli is a ubiquitous bacterial species, associated with drug resistant infections; hundreds of thousands of genomes are now available, but are biased towards high-income countries and clinical isolates. Data from sub-Saharan Africa (sSA) are underrepresented in global sequencing efforts and may represent a major source of genetic diversity with respect to transmissible antimicrobial resistance (AMR). We carried out a genomic investigation of extended-spectrum beta-lactamase (ESBL)-producing E. coli colonising adults in Blantyre, Malawi to assess the diversity and AMR determinants and to place these isolates in the context of globally available genomes. We carried out short-read whole-genome sequencing of 473 colonising ESBL E. coli isolated from stool and placed them in the context of a previous curated species wide collection of 10,146 isolates using the popPUNK clustering algorithm and by constructing a core gene phylogeny. The most frequently identified STs in Malawian isolates were the globally successful ST131 and ST410, and blaCTX-M were the dominant ESBL genes, mirroring global trends. However, 37% of Malawian isolates did not cluster with any isolates in the global collection, and the core gene phylogeny was consistent with local subclades including in ST410 and several phylogroup A lineages. Apparent undescribed diversity in Malawian E. coli could be due to local selection pressures or sampling biases in global E. coli collections. Taking a one health approach to further sampling of E. coli from Malawi and sSA, and principled incorporation into unbiased global collections is necessary to understand local, regional and global transmission of both E. coli and priority AMR genes.

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Extended Spectrum Beta-lactamase Producing Gram Negative Bacterial Isolates from Urine of Patients Visiting Everest Hospital, Kathmandu, Nepal

Tribhuvan University Journal of Microbiology ◽

10.3126/tujm.v6i0.26575 ◽

2019 ◽

Vol 6 ◽

pp. 26-31 ◽

Cited By ~ 1

Author(s):

Nisha Guragain ◽

Aashish Pradhan ◽

Binod Dhungel ◽

Megha Raj Banjara ◽

Komal Raj Rijal ◽

...

Keyword(s):

Bacterial Species ◽

Cross Sectional Study ◽

Urine Samples ◽

Diffusion Method ◽

Beta Lactamase ◽

Bacterial Isolates ◽

Cross Sectional ◽

Gram Negative ◽

Extended Spectrum Beta Lactamase ◽

Extended Spectrum

Objectives: The study was aimed to determine the prevalence of Extended Spectrum Beta Lactamase (ESBL) producing Gram negative pathogens from urine samples along with their antimicrobial resistance. Methods: This cross-sectional study was conducted from December 2015 to May 2016 at Everest Hospital, Kathmandu. Mid-stream urine samples were collected and processed for culture by standard loop streak method. Identified bacterial isolates were tested for Antibiotic Susceptibility by modified Kirby Bauer disc diffusion method and, were subjected to ESBL screening by using 30µg cefotaxime and ceftazidime. ESBL production was confirmed by combination disc method. Results: Of the three hundred urine samples, 22.7% (67/300) showed significant growth. Four different bacterial species were identified. Among the isolates, E. coli was the most common pathogen (71.64%) followed by Klebsiella pneumoniae (14.92%), Pseudomonas spp (8.95%) and Acinetobacter spp (4.48%). Altogether 92.54% (n=62) isolates were sensitive to gentamicin, 89.55% (n=60) to amikacin, and 79.10% (n=53) to nitrofurantoin. 70.10% (n=47) isolates were resistant to antibiotic ampicillin while 62.68% (n=42) were found as Multi-Drug Resistant (MDR) and 29.8% (n=20) were ESBL producers. Conclusions: The overall prevalence of MDR and ESBL among uropathogens is low in comparison to other studies though it is essential to have a regular monitoring of ESBL producing clinical isolates in laboratory practice.

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Frequency of Extended-Spectrum Beta-Lactamase Producing Organisms Causing Urinary Tract Infection and Their Antibiotic Sensitivity Pattern

Journal of Medicine ◽

10.3329/jom.v18i1.31162 ◽

2017 ◽

Vol 18 (1) ◽

pp. 3-5

Author(s):

Md Raziur Rahman ◽

Muhammad Abdur Rahim ◽

Samira Rahat Afroze ◽

Chinmay Shaha Poddar ◽

Khwaja Nazim Uddin

Keyword(s):

Urinary Tract Infection ◽

Urinary Tract ◽

Tract Infection ◽

Antibiotic Sensitivity ◽

Beta Lactamase ◽

Extended Spectrum Beta Lactamase ◽

E Coli ◽

Extended Spectrum ◽

Number Of Patients ◽

Sensitivity Pattern

Background: The spectrum of bacteria causing urinary tract infection (UTI) and their antibiotic sensitivity pattern is not uniform. Escherichia coli and Klebsiella sp. are two common organisms responsible for UTI through-out the world. The incidence of UTI due to infection with extended-spectrum beta-lactamase (ESBL) producing organisms are increasing. This study was aimed to describe the frequency of ESBL positive organisms causing UTI and their antibiotic sensitivity pattern.Methods: This cross-sectional study was done in the Department of Internal Medicine, BIRDEM General Hospital from January to April, 2016.Results: Total number of patients was 137 with females predominance (M:F ratio 1 : 3.7). Mean age was 60.3 ±11.7 years. Most patients (131, 95.6%) of the study population were diabetic and glycaemic control was poor (mean HbA1c 9.3 ±2.3) in these subjects. Common symptoms were fever, vomiting, increased urinary frequency, dysuria, suprapubic pain, and loin pain. Neutrophilic leukocytosis was common (94.9%). E. coli (73.7%) was the commonest aetiological agent followed by Klebsiella (8.8%), Enterococcus (4.4%), Citrobacter (3.6%), Staphylococcus aureus (3.6%), Acinetobacter (2.9%), Enterobacter (1.5%), and Pseudomonas (1.5%). Over half of E. coli and of Klebsiella sp. and 100% of Enterobacter organisms were ESBL positive. Imipenem (100%), amikacin, netilmycin,and nitrofurantoin were among the most sensitive antibiotics.Conclusion: More than half (71, 51.82%) of UTI cases were due to ESBL positive organisms. Imipenem, amikacin, netilmycin, and nitrofurantoin remain the drug of choice.J MEDICINE January 2017; 18 (1) : 3-5

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Abstract #1027: Acute Suppurative and Necrotizing Thyroiditis Due to Extended Spectrum Beta Lactamase Inhibitor(ESBL) Escherichia Coli (E COLI)

Endocrine Practice ◽

10.1016/s1530-891x(20)44151-5 ◽

2017 ◽

Vol 23 ◽

pp. 224-225

Author(s):

Sindhura Gogineni ◽

Uppalapati Aditya

Keyword(s):

Escherichia Coli ◽

Beta Lactamase ◽

Extended Spectrum Beta Lactamase ◽

E Coli ◽

Extended Spectrum ◽

Lactamase Inhibitor

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Rapid killing of extended spectrum beta-lactamase positive (ESBL+), E. coli (Ec) and Klebsiella pneumoniae (Kp) clinical isolates by amikacin inhaled pulmonary drug concentration

10.26226/morressier.56d5ba2cd462b80296c94c68 ◽

2016 ◽

Author(s):

Joseph M. Blondeau

Keyword(s):

Klebsiella Pneumoniae ◽

Drug Concentration ◽

Clinical Isolates ◽

Beta Lactamase ◽

Extended Spectrum Beta Lactamase ◽

E Coli ◽

Extended Spectrum

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Multidrug-Resistant, Including Extended-Spectrum Beta Lactamase-Producing and Quinolone-Resistant, Escherichia coli Isolated from Poultry and Domestic Pigs in Dar es Salaam, Tanzania

Antibiotics ◽

10.3390/antibiotics10040406 ◽

2021 ◽

Vol 10 (4) ◽

pp. 406

Author(s):

Zuhura I. Kimera ◽

Fauster X. Mgaya ◽

Gerald Misinzo ◽

Stephen E. Mshana ◽

Nyambura Moremi ◽

...

Keyword(s):

Escherichia Coli ◽

Multidrug Resistant ◽

Antibiotics Resistance ◽

Beta Lactamase ◽

Domestic Pigs ◽

Extended Spectrum Beta Lactamase ◽

Phenotypic Profile ◽

E Coli ◽

Extended Spectrum ◽

Esbl Producers

We determined the phenotypic profile of multidrug-resistant (MDR) Escherichia coli isolated from 698 samples (390 and 308 from poultry and domestic pigs, respectively). In total, 562 Enterobacteria were isolated. About 80.5% of the isolates were E. coli. Occurrence of E. coli was significantly higher among domestic pigs (73.1%) than in poultry (60.5%) (p = 0.000). In both poultry and domestic pigs, E. coli isolates were highly resistant to tetracycline (63.5%), nalidixic acid (53.7%), ampicillin (52.3%), and trimethoprim/sulfamethoxazole (50.9%). About 51.6%, 65.3%, and 53.7% of E. coli were MDR, extended-spectrum beta lactamase-producing enterobacteriaceae (ESBL-PE), and quinolone-resistant, respectively. A total of 68% of the extended-spectrum beta lactamase (ESBL) producers were also resistant to quinolones. For all tested antibiotics, resistance was significantly higher in ESBL-producing and quinolone-resistant isolates than the non-ESBL producers and non-quinolone-resistant E. coli. Eight isolates were resistant to eight classes of antimicrobials. We compared phenotypic with genotypic results of 20 MDR E. coli isolates, ESBL producers, and quinolone-resistant strains and found 80% harbored blaCTX-M, 15% aac(6)-lb-cr, 10% qnrB, and 5% qepA. None harbored TEM, SHV, qnrA, qnrS, qnrC, or qnrD. The observed pattern and level of resistance render this portfolio of antibiotics ineffective for their intended use.

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Evaluation of extended spectrum beta lactamase enzymes prevalence in clinical isolates of Escherichia coli

Microbiology Research ◽

10.4081/mr.2011.e8 ◽

2011 ◽

Vol 2 (1) ◽

pp. 8

Author(s):

Ronak Bakhtiari ◽

Jalil Fallah Mehrabadi ◽

Hedroosha Molla Agamirzaei ◽

Ailar Sabbaghi ◽

Mohammad Mehdi Soltan Dallal

Keyword(s):

Escherichia Coli ◽

Disk Diffusion ◽

Confirmatory Test ◽

Diffusion Method ◽

Multi Drug Resistance ◽

Beta Lactamase ◽

Disk Diffusion Method ◽

Extended Spectrum Beta Lactamase ◽

E Coli ◽

Extended Spectrum

Resistance to b-lactam antibiotics by gramnegative bacteria, especially Escherichia coli (E. coli), is a major public health issue worldwide. The predominant resistance mechanism in gram negative bacteria particularly E. coli is via the production of extended spectrum beta lactamase (ESBLs) enzymes. In recent years, the prevalence of b-lactamase producing organisms is increased and identification of these isolates by using disk diffusion method and no-one else is not satisfactory. So, this investigation focused on evaluating the prevalence of ESBL enzymes by disk diffusion method and confirmatory test (Combined Disk). Five hundred clinical samples were collected and 200 E. coli isolates were detected by standard biochemical tests. To performing initial screening of ESBLs was used from Disk diffusion method on E. coli isolates. A confirmation test (Combined Disk method) was performed on isolates of resistant to cephalosporin's indicators. Up to 70% isolates exhibited the Multi Drug Resistance phenotype. In Disk diffusion method, 128(64%) E. coli isolates which resistant to ceftazidime and cefotaxime while in Combined Disk, among 128 screened isolates, 115 (89.8%) isolates were detected as ESBLs producers. This survey indicate beta lactamase enzymes are playing a significant role in antibiotic resistance and correct detection of them in phenotypic test by using disk diffusion and combined Disk is essential for accurate recognition of ESBLs.

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