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https://www.readbyqxmd.com/read/28921905/antibiotic-resistant-escherichia-coli-in-southeastern-australian-pig-herds-and-implications-for-surveillance
#1
L K van Breda, O P Dhungyel, M P Ward
To investigate public health implications of antibiotics to control post-weaning scours, we surveyed 22 commercial pig herds in southeastern Australia. Fifty faecal samples per herd were collected from pre- and post-weaned piglets. Presumptive Escherichia coli isolates were confirmed by MALDI-TOF MS. Isolates (n = 325) were screened for susceptibility to 19 veterinary antibiotics using MIC broth microdilution. All 325 E. coli isolates underwent further testing against 27 antibiotics used in human medicine and were screened for ETEC adhesin and enterotoxin genes (F4 (K88), F5 (K99), F6 (987P), F18, F41, STa, STb, Stx2e and LT) by multiplex PCR...
September 17, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28898269/faecal-carriage-of-ctx-m-extended-spectrum-beta-lactamase-producing-enterobacteriaceae-among-street-children-dwelling-in-mwanza-city-tanzania
#2
Nyambura Moremi, Heike Claus, Ulrich Vogel, Stephen E Mshana
BACKGROUND: Data on ESBL carriage of healthy people including children are scarce especially in developing countries. We analyzed the prevalence and genotypes of ESBL-producing Enterobacteriaceae (EPE) in Tanzanian street children with rare contact to healthcare facilities but significant interactions with the environment, animals and other people. METHODOLOGY/ PRINCIPLE FINDINGS: Between April and July 2015, stool samples of 107 street children, who live in urban Mwanza were analyzed for EPE...
2017: PloS One
https://www.readbyqxmd.com/read/28873943/novel-sequence-types-of-extended-spectrum-and-acquired-ampc-beta-lactamase-producing-escherichia-coli-and-escherichia-clade-v-isolated-from-wild-mammals
#3
Carla Andrea Alonso, Leticia Alcalá, Carmen Simón, Carmen Torres
The closer contact with wildlife due to the growing human population and the destruction of natural habitats emphasizes the need of gaining insight into the role of animals as source of antimicrobial resistance. Here, we aim at characterizing the antimicrobial resistance genes and phylogenetic distribution of commensal Escherichia coli from 62 wild mammals. Isolates exhibiting resistance to ≥1 antibiotic were detected in 25.8% of the animals and 6.4% carried an extended-spectrum beta-lactamase (ESBL)/AmpC-producing E...
August 1, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28834351/preliminary-insights-into-the-occurrence-of-similar-clones-of-extended-spectrum-beta-lactamase-producing-bacteria-in-humans-animals-and-the-environment-in-tanzania-a-systematic-review-and-meta-analysis-between-2005-and-2016
#4
REVIEW
J Seni, N Moremi, M Matee, F van der Meer, R DeVinney, S E Mshana, J D D Pitout
The emergence and spread of extended-spectrum beta-lactamase producing Enterobacteriaceae (ESBL-PE) are complex and of the public health concern across the globe. This review aimed at assessing the ESBL-PE clones circulating in humans, animals and the environment to provide evidence-based insights for combating ESBL-PE using One Health approach. Systematic search from Medline/PubMed, Google Scholar and African Journals Online was carried out and retrieved nine eligible articles (of 131) based on phenotypic and genotypic detection of ESBL-PE between 2005 and 2016 in Tanzania...
August 22, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28758612/incidence-of-extended-spectrum-%C3%AE-lactamase-esbl-producing-escherichia-coli-and-klebsiella-infections-in-the-united-states-a-systematic-literature-review
#5
Jennifer McDanel, Marin Schweizer, Victoria Crabb, Richard Nelson, Matthew Samore, Karim Khader, Amy E Blevins, Daniel Diekema, Hsiu-Yin Chiang, Rajeshwari Nair, Eli Perencevich
BACKGROUND Despite a reported worldwide increase, the incidence of extended-spectrum β-lactamase (ESBL) Escherichia coli and Klebsiella infections in the United States is unknown. Understanding the incidence and trends of ESBL infections will aid in directing research and prevention efforts. OBJECTIVE To perform a literature review to identify the incidence of ESBL-producing E. coli and Klebsiella infections in the United States. DESIGN Systematic literature review. METHODS MEDLINE via Ovid, CINAHL, Cochrane library, NHS Economic Evaluation Database, Web of Science, and Scopus were searched for multicenter (≥2 sites), US studies published between 2000 and 2015 that evaluated the incidence of ESBL-E...
October 2017: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/28749780/the-prevalence-of-extended-spectrum-beta-lactamase-producing-multidrug-resistant-escherichia-coli-in-poultry-chickens-and-variation-according-to-farming-practices-in-punjab-india
#6
Charles H Brower, Siddhartha Mandal, Shivdeep Hayer, Mandeep Sran, Asima Zehra, Sunny J Patel, Ravneet Kaur, Leena Chatterjee, Savita Mishra, B R Das, Parminder Singh, Randhir Singh, J P S Gill, Ramanan Laxminarayan
BACKGROUND: Agricultural use of antimicrobials in subtherapeutic concentrations is increasing in response to the rising demand for food animal products worldwide. In India, the use of antimicrobials in food animal production is unregulated. Research suggests that many clinically important antimicrobials are used indiscriminately. This is the largest study to date in India that surveys poultry production to test for antimicrobial resistance and the occurrence of extended-spectrum (ESBLs) modulated by farming and managerial practices...
July 20, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28749329/in-vitro-efficacy-of-16-antimicrobial-drugs-against-a-large-collection-of-%C3%AE-lactamase-producing-isolates-of-extraintestinal-pathogenic-escherichia-coli-from-dogs-and-cats
#7
Takae Shimizu, Kazuki Harada, Yuzo Tsuyuki, Yui Kimura, Tadashi Miyamoto, Shingo Hatoya, Yoshiaki Hikasa
PURPOSE: The aim of this study was to assess the in vitro efficacy of candidate antimicrobials against extended-spectrum β-lactamase (ESBL)-producing isolates of extraintestinal pathogenic Escherichia coli (ExPEC) from companion animals. METHODOLOGY: A total of 90 ESBL-producing ExPEC isolates from dogs and cats were tested for susceptibility to 16 antimicrobials with the agar dilution method. We also identified the ESBLs and AmpC β-lactamases of these isolates with PCR and DNA sequencing...
August 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28735050/antimicrobial-resistance-profiles-and-genotypes-of-extended-spectrum-%C3%AE-lactamase-and-ampc-%C3%AE-lactamase-producing-klebsiella-pneumoniae-isolated-from-dogs-in-beijing-china
#8
Yanhan Liu, Yonghui Yang, Yanyun Chen, Zhaofei Xia
OBJECTIVES: Klebsiella pneumoniae, which exists in the intestinal and respiratory tracts of humans and animals, is an important conditional pathogen in many animals. The aim of the current study was to investigate the antimicrobial resistance profiles and genotypes of extended-spectrum β-lactamase (ESBL)- and AmpC β-lactamase-producing K. pneumoniae isolated from dogs. METHODS: A total of 285 isolates, collected from faecal and urine samples of diseased dogs in a Veterinary Teaching Hospital in Beijing, were characterised by antimicrobial susceptibility testing and screened for ESBL and AmpC β-lactamase phenotypes...
September 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28728058/high-prevalence-of-esbls-in-retail-chicken-meat-despite-reduced-use-of-antimicrobials-in-chicken-production-france
#9
Tiago Casella, Mara Correa Lelles Nogueira, Estelle Saras, Marisa Haenni, Jean-Yves Madec
Extended-spectrum cephalosporins (ESCs) are critically important antibiotics for humans and their use in animals poses a potential threat for public health. Chicken represents an increasing part of the human diet and has also been regarded as a source of ESC-resistant Enterobacteriaceae because of the worldwide off-label use of ceftiofur, a broad-spectrum cephalosporin. Thus, numerous studies pointed out chicken as a reservoir of ESBL/pAmpC genes, plasmids and/or clones at risk for humans. In France, late 2011, strong political pressure led to a drastic reduction of ceftiofur use and all other antibiotics in chicken production...
July 10, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28674313/first-detection-of-escherichia-coli-harboring-mcr-1-gene-from-retail-domestic-chicken-meat-in-japan
#10
Yusuke Ohsaki, Wataru Hayashi, Satomi Saito, Shunsuke Osaka, Yui Taniguchi, Shota Koide, Kumiko Kawamura, Yukiko Nagano, Yoshichika Arakawa, Noriyuki Nagano
Global spread of plasmid-mediated colistin resistance gene, mcr-1 poses a public health concern because colistin is the last-line-of-defense against severe infections due to multidrug-resistant Gram- negative bacteria. In Japan, a few studies have reported the prevalence of mcr-1 among food animal-derived Escherichia coli isolates, but the epidemiology of mcr-1 from retail meats is not well known. We report here the first detection of mcr-1 from retail chicken meats. A total of 70 ESBL-producing E. coli isolates recovered from retail chicken meats collected between August 2015 and June 2016 were screened for mcr-1, which resulted in positive for one isolate of CTX-M-1 producing E...
July 1, 2017: Japanese Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28641596/types-and-prevalence-of-extended-spectrum-beta-lactamase-producing-enterobacteriaceae-in-poultry
#11
Eva-Maria Saliu, Wilfried Vahjen, Jürgen Zentek
For several billion years, bacteria have developed mechanisms to resist antibacterial substances. In modern time, antibiotics are frequently used in veterinary and human medicine for prevention and treatment of diseases, globally still also for their growth promoting effects as feed additives. This complex situation has evolved in accelerating development and prevalence of multi-drug resistant bacteria in livestock and people. Extended-spectrum beta-lactamase (ESBL) producing bacteria are resistant to a wide range of ß-lactam antibiotics...
June 23, 2017: Animal Health Research Reviews
https://www.readbyqxmd.com/read/28619146/dynamics-of-cmy-2-producing-e-coli-in-a-broiler-parent-flock
#12
Anita Dame-Korevaar, Egil A J Fischer, Arjan Stegeman, Dik Mevius, Alieda van Essen-Zandbergen, Francisca Velkers, Jeanet van der Goot
Extended-spectrum β-lactamase and plasmid mediated AmpC β-lactamase (ESBL/pAmpC) producing bacteria are resistant to Extended Spectrum Cephalosporins (ESC), and are present in all levels of the broiler production chain. We determined the prevalence, concentration, and persistence of ESBL/pAmpC-Escherichia coli in a broiler parent flock during the rearing and laying period. One-day old chickens were housed in four separate pens. Until week 33 no antibiotics or coccidiostatics were used. During rearing 57 chickens in each pen (n=228), and in the laying period two groups of 33 chickens were individually sampled (n=66)...
May 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28578094/salmonella-heidelberg-genetic-profile-of-its-antimicrobial-resistance-related-to-extended-spectrum-%C3%AE-lactamases-esbls
#13
Jéssica Giuriatti, Lenita Moura Stefani, Maiara Cristina Brisola, Regiane Boaretto Crecencio, Dinael Simão Bitner, Gláucia Amorim Faria
The objective of this study was to evaluate the phenotypic and genotypic profile of antimicrobial susceptibility and the possible involvement of extended spectrum beta-lactamases (ESBLs) in the resistance profile of Salmonella Heidelberg (SH) isolated from chicken meat. We used 18 SH isolates from chicken meat produced in 2013 in the state of Paraná, Southern Brazil. The isolates were submitted to disk-diffusion tests and from these results it was possible to determine the number of isolates considered multiresistant and the index of multiple antimicrobial resistance (IRMA) against ten antimicrobials routinely used in human and veterinary medicine...
May 31, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28559168/draft-genome-sequence-of-a-ctx-m-15-producing-escherichia-coli-st345-from-commercial-chicken-meat-in-brazil
#14
Tiago Casella, Louise T Cerdeira, Miriam R Fernandes, Tiago A Souza, Marisa Haenni, Jean-Yves Madec, Nilton Lincopan, Mara C L Nogueira
Escherichia coli, the main host of the CTX-M-15 extended-spectrum β-lactamase (ESBL) enzyme, is widely distributed and exchanged between the environment, animals and humans. Therefore, identification of blaCTX-M-15-positive lineages in food has a significant impact on public health. In this regard, until the end of 1990s, ESBL-producing isolates were mainly associated with hospital-acquired infections, with a predominance of SHV- and TEM-type enzymes. In recent years, a new trend has been observed among ESBL-producers, where most isolates now harbour CTX-M-type, being further isolated from community-acquired infections...
June 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28541467/global-epidemiology-of-ctx-m-%C3%AE-lactamases-temporal-and-geographical-shifts-in-genotype
#15
Edward R Bevan, Annie M Jones, Peter M Hawkey
Globally, rates of ESBL-producing Enterobacteriaceae are rising. We undertook a literature review, and present the temporal trends in blaCTX-M epidemiology, showing that blaCTX-M-15 and blaCTX-M-14 have displaced other genotypes in many parts of the world. Explanations for these changes can be attributed to: (i) horizontal gene transfer (HGT) of plasmids; (ii) successful Escherichia coli clones; (iii) ESBLs in food animals; (iv) the natural environment; and (v) human migration and access to basic sanitation...
August 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28521000/the-ecology-of-extended-spectrum-%C3%AE-lactamases-esbls-in-the-developed-world
#16
Yohei Doi, Alina Iovleva, Robert A Bonomo
Background: Since the initial appearance in the 1980s, Enterobacteriaceae producing extended-spectrum β-lactamase (ESBL) have increased in prevalence and emerged as a major antimicrobial-resistant pathogen. The source of these antimicrobial-resistant bacteria in the developed world is an area of active investigation. Methods: A standard internet search was conducted with a focus on the epidemiology and potential sources of ESBL-producing Enterobacteriaceae in the developed world...
April 1, 2017: Journal of Travel Medicine
https://www.readbyqxmd.com/read/28508092/a-metabonomic-analysis-on-the-response-of-enterobacter-cloacae-from-coastal-outfall-for-land-based-pollutant-under-phoxim-stress
#17
Dijun Zhang, Shan He, Tinghong Ming, Chenyang Lu, Jun Zhou, Xiurong Su
Enterobacter cloacae is an opportunistic pathogen widely distributed in human and animal intestinal systems. The secretion of extended-spectrum β-lactamases (ESBLs) and cephalosporinase (AmpC) endows E. cloacae with strong drug resistance. In a previous study by our group, protein expression of E. cloacae under phoxim stress was measured by two-dimensional electrophoresis. Here, nuclear magnetic resonance was used to detect differences in E. cloacae metabonomics when under phoxim stress. We determined that there are 29 types of metabolites that differ between phoxim stress and normal culture conditions...
May 15, 2017: Archives of Microbiology
https://www.readbyqxmd.com/read/28462735/esbl-carriage-in-pig-slaughterhouse-workers-is-associated-with-occupational-exposure
#18
W Dohmen, L VAN Gompel, H Schmitt, A Liakopoulos, L Heres, B A Urlings, D Mevius, M J M Bonten, D J J Heederik
We investigated the prevalence of extended-spectrum β-lactamase (ESBL) carriage in slaughterhouse workers and the association with occupational exposure to slaughter animals and products. Stool samples from 334 employees in a Dutch pig slaughterhouse were obtained. Presence of ESBL was determined by selective plating, microarray analysis, and gene sequencing. Questionnaires were used to collect personal and occupational information. The overall prevalence of ESBL carriage was 4·8% (16/334). All ESBL-producing isolates were Escherichia coli...
July 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28446899/clonal-spread-of-16s-rrna-methyltransferase-producing-klebsiella-pneumoniae-st37-with-high-prevalence-of-esbls-from-companion-animals-in-china
#19
Jing Xia, Liang-Xing Fang, Ke Cheng, Guo-Hao Xu, Xi-Ran Wang, Xiao-Ping Liao, Ya-Hong Liu, Jian Sun
We screened 30 Klebsiella pneumoniae isolates from dogs and cats at a single animal hospital in Guangdong Province, China. Among them, 12 K. pneumoniae strains possessed high-level resistance to amikacin and gentamicin and these were screened for 16S rRNA methyltransferase (16S-RMTase) genes. And then the genes positive isolates were detected for ESBLs (extended spectrum β-lactamases) and analyzed by pulsed-field gel electrophoresis, multilocus sequence typing, PCR-based replicon typing and plasmid analysis...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28409502/the-role-of-wildlife-wild-birds-in-the-global-transmission-of-antimicrobial-resistance-genes
#20
REVIEW
Jing Wang, Zhen-Bao Ma, Zhen-Ling Zeng, Xue-Wen Yang, Ying Huang, Jian-Hua Liu
Antimicrobial resistance is an urgent global health challenge in human and veterinary medicine. Wild animals are not directly exposed to clinically relevant antibiotics; however, antibacterial resistance in wild animals has been increasingly reported worldwide in parallel to the situation in human and veterinary medicine. This underlies the complexity of bacterial resistance in wild animals and the possible interspecies transmission between humans, domestic animals, the environment, and wildlife. This review summarizes the current data on expanded-spectrum β-lactamase (ESBL), AmpC β-lactamase, carbapenemase, and colistin resistance genes in Enterobacteriaceae isolates of wildlife origin...
March 18, 2017: Zoological Research
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