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https://www.readbyqxmd.com/read/27899921/high-prevalence-of-%C3%AE-lactamase-and-plasmid-mediated-quinolone-resistance-genes-in-extended-spectrum-cephalosporin-resistant-escherichia-coli-from-dogs-in-shaanxi-china
#1
Xiaoqiang Liu, Haixia Liu, Yinqian Li, Caiju Hao
Objective: The aim of this study was to investigate the occurrence and molecular characterization of extended-spectrum β-lactamases (ESBL), plasmid-mediated AmpC β-lactamase (pAmpC) and carbapenemases as well as plasmid-mediated quinolone-resistant (PMQR) among extended-spectrum cephalosporin-resistant (ESC-R) Escherichia coli from dogs in Shaanxi province in China. Methods: A total of 40 ESC-R Escherichia coli selected from 165 Extraintestinal pathogenic E. coli (ExPEC) isolated from dogs were screened and characterized for the genes encoding for the ESBLs, pAmpC, carbapenemases and PMQR genes by PCR and sequencing...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27890366/in%C3%A2-vitro-biofilm-formation-in-esbl-producing-escherichia-coli-isolates-from-cage-birds
#2
Ebru Sebnem Yılmaz, Nur Ceyhan Güvensen
OBJECTIVE: To determine biofilm and hydrophobicity formation ratios in extended spectrum beta lactamases (ESBL) synthesizing Escherichia coli isolates which were isolated from feces samples of 150 cage bird species randomly taken from pet shops in Hatay province, Turkey. METHODS: In vitro biofilm production of 4 ESBL positive isolates were performed by Congo Red Agar (CRA), Standard Tube (ST) and Microtitre Plate (MP) methods while their hydrophobicity were examined by bacterial adhesion to hydrocarbon (BATH) test...
November 2016: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/27865491/prevalence-and-risk-factors-for-extended-spectrum-beta-lactamase-or-ampc-producing-escherichia-coli-in-organic-dairy-herds-in-the-netherlands
#3
I M G A Santman-Berends, M A Gonggrijp, J J Hage, A E Heuvelink, A Velthuis, T J G M Lam, G van Schaik
Extended-spectrum β-lactamase and AmpC-producing Escherichia coli (ESBL/AmpC) are an emerging problem and are hypothesized to be associated with antimicrobial use (AMU), and more specifically with the use of third- and fourth-generation cephalosporins. Whether ESBL/AmpC also occur in organic dairy herds, which have restricted AMU, is not known. Additionally, it is unknown whether, in addition to restricted AMU, other factors in organic herd management are associated with ESBL/AmpC herd status. The aim of this study was to estimate the prevalence of ESBL/AmpC in organic dairy herds in the Netherlands...
November 16, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27815276/genome-dynamics-and-molecular-infection-epidemiology-of-multi-drug-resistant-helicobacter-pullorum-isolates-obtained-from-broiler-and-country-chickens-in-india
#4
Shamsul Qumar, Mohammad Majid, Narender Kumar, Sumeet K Tiwari, Torsten Semmler, Savita Devi, Ramani Baddam, Arif Hussain, Sabiha Shaik, Niyaz Ahmed
: Some of the life-threatening, foodborne, and zoonotic infections are transmitted through poultry birds. Inappropriate and indiscriminate use of antimicrobials in livestock industry has led to increased prevalence of multidrug resistant bacteria of epidemic potentials. Herein, we present the functional molecular epidemiological analysis entailing phenotypic as well as whole genome sequence based characterization of eleven H. pullorum isolates from broiler and free range chickens sampled from retail wet markets of Hyderabad city in India...
November 4, 2016: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/27795309/esbl-pampc-producing-enterobacteria-in-the-broiler-hatchery-a-mode-of-pseudo-vertical-transmission
#5
Michaela Projahn, Katrin Daehre, Uwe Roesler, Anika Friese
: Antimicrobial resistance through extended-spectrum beta-lactamases (ESBLs) and transferable AmpC beta-lactamases represents an increasing problem in human and veterinary medicine. The presence of ESBL-/pAmpC-producing commensal enterobacteria in farm animals such as broiler chicken is considered as one possible source of food contamination and could, therefore, also be relevant for human colonization. Studies on transmission routes along the broiler production chain showed that already one-day old hatchlings are affected...
October 21, 2016: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/27773759/extended-spectrum-%C3%AE-lactamase-and-pampc-producing-enterobacteriaceae-among-the-general-population-in-a-livestock-dense-area
#6
C C H Wielders, A H A M van Hoek, P D Hengeveld, C Veenman, C M Dierikx, T P Zomer, L A M Smit, W van der Hoek, D J Heederik, S C de Greeff, C B M Maassen, E van Duijkeren
OBJECTIVES: In the Netherlands there is an ongoing debate regarding environmental health risks of livestock farming for neighbouring residents. This explorative study aims to determine the prevalence of carriage of ESBL/pAmpC-producing Enterobacteriaceae (ESBL/pAmpC-E) in the general population living in a livestock-dense area, and to study associations between determinants, including exposure through contact with animals and the environment, and human carriage of ESBL/pAmpC-E. METHODS: A cross-sectional study was performed among 2,432 adults (aged 20-72 years) in twelve temporary research centres in the south of the Netherlands, consisting of a questionnaire and analysis of a faecal sample to assess carriage of ESBL/pAmpC-E...
October 20, 2016: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/27733802/occurrence-and-characteristics-of-extended-spectrum-%C3%AE-lactamases-producing-escherichia-coli-in-foods-of-animal-origin-and-human-clinical-samples-in-chhattisgarh-india
#7
Bhoomika, Sanjay Shakya, Anil Patyal, Nitin Eknath Gade
AIM: To assess the prevalence of antimicrobial resistance producing extended-spectrum β-lactamases (ESBL) (blaTEM, blaSHV, and blaCTX-M) genes in Escherichia coli isolated from chicken meat, chevon meat, raw milk, and human urine and stool samples collected from tribal districts of Chhattisgarh, viz., Jagdalpur, Dantewada, Kondagaon, and Kanker. MATERIALS AND METHODS: A total of 330 samples, comprising 98 chicken meat, 82 chevon meat, 90 raw milk, and 60 human urine and stool samples, were processed for isolation of E...
September 2016: Veterinary World
https://www.readbyqxmd.com/read/27678285/antimicrobial-resistance-in-shiga-toxin-producing-escherichia-coli-serogroups-o157-and-o26-isolated-from-human-cases-of-diarrhoeal-disease-in-england-2015
#8
Martin Day, Michel Doumith, Claire Jenkins, Timothy J Dallman, Katie L Hopkins, Richard Elson, Gauri Godbole, Neil Woodford
OBJECTIVES: Shiga toxin-producing Escherichia coli (STEC) are zoonotic and transmission to humans occurs via contaminated food or contact with infected animals. In this study, WGS data were used to predict antimicrobial resistance (AMR) in STEC from symptomatic human cases to assess the extent of transmission of antibiotic-resistant E. coli from animals to humans. METHODS: WGS data from 430 isolates of STEC were mapped to genes known to be associated with phenotypic AMR...
September 27, 2016: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/27660260/40-years-of-veterinary-papers-in-jac-what-have-we-learnt
#9
REVIEW
Stefan Schwarz, Virve I Enne, Engeline van Duijkeren
This review, for the occasion of the 40th anniversary of the Journal of Antimicrobial Chemotherapy (JAC), gives an overview of the manuscripts related to veterinary bacteriology published in the journal in the past 40 years with a focus on 'One Health' aspects. From 1975 to 2000 the number of manuscripts related to veterinary medicine was limited, but thereafter, the number steadily increased. Most manuscripts published were related to food-producing animals, but companion animals and minor species were also covered...
October 2016: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/27649798/increased-prevalence-of-antibiotic-resistant-e-coli-in-gulls-sampled-in-southcentral-alaska-is-associated-with-urban-environments
#10
Clara Atterby, Andrew M Ramey, Gabriel Gustafsson Hall, Josef Järhult, Stefan Börjesson, Jonas Bonnedahl
BACKGROUND: Antibiotic-resistant bacteria pose challenges to healthcare delivery systems globally; however, limited information is available regarding the prevalence and spread of such bacteria in the environment. The aim of this study was to compare the prevalence of antibiotic-resistant bacteria in large-bodied gulls (Larus spp.) at urban and remote locations in Southcentral Alaska to gain inference into the association between antibiotic resistance in wildlife and anthropogenically influenced habitats...
2016: Infection Ecology & Epidemiology
https://www.readbyqxmd.com/read/27642751/identification-and-characterization-of-cefotaxime-resistant-bacteria-in-beef-cattle
#11
Raies A Mir, Thomas A Weppelmann, Judith A Johnson, Douglas Archer, J Glenn Morris, KwangCheol Casey Jeong
Third-generation cephalosporins are an important class of antibiotics that are widely used in treatment of serious Gram-negative bacterial infections. In this study, we report the isolation of bacteria resistant to the third-generation cephalosporin cefotaxime from cattle with no previous cefotaxime antibiotic exposure. The prevalence of cefotaxime-resistant bacteria was examined by a combination of culture based and molecular typing methods in beef cattle (n = 1341) from 8 herds located in North Central Florida...
2016: PloS One
https://www.readbyqxmd.com/read/27638264/prevalence-and-risk-factors-for-extended-spectrum-%C3%AE-lactamase-and-ampc-producing-escherichia-coli-in-dairy-farms
#12
M A Gonggrijp, I M G A Santman-Berends, A E Heuvelink, G J Buter, G van Schaik, J J Hage, T J G M Lam
A cross-sectional study was conducted to evaluate the prevalence of extended-spectrum β-lactamase (ESBL)- and plasmid-mediated AmpC-producing Escherichia coli and associated risk factors in dairy herds. One hundred dairy herds were randomly selected and sampled to study the presence of ESBL- and AmpC-producing E. coli in slurry samples. The sensitivity of testing slurry samples for ESBL/AmpC herd status is less than 100%, especially for detecting herds with a low ESBL/AmpC prevalence. Therefore, whereas herds that tested positive for ESBL/AmpC-producing E...
September 13, 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/27634182/extended-spectrum-%C3%AE-lactamase-esbl-producing-escherichia-coli-isolates-collected-from-diseased-food-producing-animals-in-the-germ-vet-monitoring-program-2008-2014
#13
Geovana Brenner Michael, Heike Kaspar, Amanda Keller Siqueira, Eduardo de Freitas Costa, Luís Gustavo Corbellini, Kristina Kadlec, Stefan Schwarz
The aim of this study was to identify extended-spectrum β-lactamase (ESBL)-producing Escherichia coli collected from diseased food-producing animals in Germany. A total of 6849 E. coli isolates, collected from diseased cattle, pigs and poultry in the German national monitoring program GERM-Vet (2008-2014), were characterized by antimicrobial susceptibility testing and screened for the ESBL phenotype. ESBL genes were identified by PCR and sequencing. The isolates were further characterized by PCR-based phylotyping...
September 1, 2016: Veterinary Microbiology
https://www.readbyqxmd.com/read/27610300/antibiotic-susceptibility-pattern-and-analysis-of-plasmid-profiles-of-pseudomonas-aeruginosa-from-human-animal-and-plant-sources
#14
Bamidele Tolulope Odumosu, Olabayo Ajetunmobi, Hannah Dada-Adegbola, Idowu Odutayo
Multidrug resistant organisms (MDROs) constitute a major public health threat globally. Clinical isolates of Pseudomonas aeruginosa remains one of the most studied MDROs however there is paucity of information regarding the susceptibility of its animal and plants isolates to antipseudomonas drug in Nigeria. From a total of 252 samples consisting of plants, animals and clinical samples, 54, 24 and 22 P. aeruginosa were isolated from vegetables, animals and clinical sources respectively. All the isolates were identified by standard biochemical methods...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27608837/faecal-carriage-of-extended-spectrum-%C3%AE-lactamase-producing-enterobacteriaceae-and-shiga-toxin-producing-escherichia-coli-in-asymptomatic-nursery-children-in-lower-saxony-germany-2014
#15
M Harries, J Dreesman, S Rettenbacher-Riefler, E Mertens
Children may be at higher risk for carriage of antimicrobial-resistant bacteria because of higher usage of antimicrobials. They also have higher rates of Shiga toxin-producing Escherichia coli (STEC) infections than other population groups. Some infections, particularly in children, are asymptomatic, but still lead to the excretion of large numbers of bacteria and viruses that may cause clinical disease in other individuals. That is one reason why, in Lower Saxony as in other German federal states - asymptomatic carriers of STEC are excluded from nurseries and schools until three consecutive stool samples test negative in order to prevent secondary cases...
September 9, 2016: Epidemiology and Infection
https://www.readbyqxmd.com/read/27592073/extended-spectrum-%C3%AE-lactamase-producing-enterobacteriaceae-in-bulk-tank-milk-from-german-dairy-farms
#16
Sabrina Odenthal, Ömer Akineden, Ewald Usleber
Although the dairy farm environment is a known source of extended-spectrum β-lactamase (ESBL)-producing bacteria, surveillance data on ESBL in the milk production chain are still scarce. This study aimed at estimating the dimensions of the problem for public health and animal welfare by surveying ESBL-producing Enterobacteriaceae in raw bulk tank milk in Germany. Samples from 866 dairy farms, comprising about 1% of the total number of dairy farms in Germany, were first screened for presence of cefotaxime-resistant bacteria by selective enrichment...
December 5, 2016: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/27586467/phenotypic-and-genotypic-antimicrobial-resistance-and-virulence-genes-of-salmonella-enterica-isolated-from-pet-dogs-and-cats
#17
Songsak Srisanga, Sunpetch Angkititrakul, Patcharee Sringam, Phuong T Le Ho, An T T Vo, Rungtip Chuanchuen
A total of 122 Salmonella isolates from dogs (n=113) and cats (n=9) comprising 32 serotypes were obtained from household dogs (n=250) and cats (n=50) during 2012-2015. The isolates were characterized by serotyping, examining phenotype and genotype of antimicrobial resistance and screening virulence genes. Serovars Weltevreden (15.6%) and Typhimurium (13.9%) were the most common serotypes. The majority of the isolates were multidrug resistant (43%). The dog isolates (12.3%) harbored class 1 integrons, of which the dfrA12-aadA2 cassette was most frequently identified (66...
September 1, 2016: Journal of Veterinary Science
https://www.readbyqxmd.com/read/27550353/sequence-type-48-escherichia-coli-carrying-the-blactx-m-1-inci1-st3-plasmid-in-drinking-water-in-france
#18
Jean-Yves Madec, Marisa Haenni, Cécile Ponsin, Nicolas Kieffer, Emmanuelle Rion, Benoit Gassilloud
Drinking water has rarely been recognized as a source of antimicrobial resistance for humans, and only in low-income countries. Here, a sequence type 48 Escherichia coli isolate carrying the blaCTX-M-1 IncI1/ST3 plasmid was recovered from drinking water in France. This plasmid was similar to other blaCTX-M-1 IncI1/ST3 plasmids found previously in animals and humans. Our findings highlight the possible human transfer of extended-spectrum β-lactamase (ESBL) genes through drinking water in high-income countries...
October 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27530857/multidrug-resistance-and-transferability-of-blactx-m-among-extended-spectrum-%C3%AE-lactamase-producing-enteric-bacteria-in-biofilm
#19
Meenu Maheshwari, Iqbal Ahmad, Abdullah Safar Althubiani
This study aimed to investigate the occurrence of biofilm-forming extended-spectrum β-lactamase (ESBL)-producing enteric bacteria in hospital wastewater and to evaluate their antibiotic resistance behaviour and transferability of the plasmid-encoded blaCTX-M gene in biofilm. ESBL production was confirmed using the combined disc test and Etest. Amplification of blaCTX-M was performed by PCR. Antibiotic susceptibility was evaluated using the disc diffusion assay and broth dilution method. Transfer of blaCTX-M in planktonic and biofilm state was performed by broth mating and filter mating experiments, respectively...
September 2016: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/27486061/extended-spectrum-%C3%AE-lactam-resistance-in-the-enteric-flora-of-patients-at-a-tertiary-care-medical-centre
#20
T F Landers, D F Mollenkopf, R L Faubel, A Dent, P Pancholi, J B Daniels, T E Wittum
The dissemination of Enterobacteriaceae expressing resistance to extended-spectrum cephalosporins, which are therapeutically used in both human and veterinary medicine, is of critical concern. The normal commensal flora of food animals may serve as an important reservoir for the zoonotic food-borne transmission of Enterobacteriaceae harbouring β-lactam resistance. We hypothesized that the predominant AmpC and ESBL genes reported in US livestock and fresh retail meat products, blaCMY -2 and blaCTX -M , would also be predominant in human enteric flora...
August 3, 2016: Zoonoses and Public Health
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