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https://www.readbyqxmd.com/read/28963220/draft-genome-sequences-of-salmonella-enterica-isolates-containing-incompatibility-group-i1-plasmids-from-swine-poultry-and-human-sources
#1
Pravin R Kaldhone, Bijay K Khajanchi, Jing Han, Rajesh Nayak, Steven C Ricke, Steven L Foley
The draft genome sequences of eight Salmonella enterica isolates from various sources were evaluated for the influence of incompatibility group I1 (IncI1) plasmids on virulence. Strains SE142, SE143, SE144, and SE146 originated from swine, SE36N and SE89N from poultry-related sources, and SE991 and SE1148 from human patients.
September 28, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28939468/complete-nucleotide-sequence-of-psklx3330-an-inci1-plasmid-carrying-blactx-m-55-isolated-from-community-onset-escherichia-coli-infection
#2
EDITORIAL
Beiwen Zheng, Jing Zhang, Xiawei Jiang, Hong Cheng, Jinru Ji, Yonghong Xiao, Lanjuan Li
No abstract text is available yet for this article.
September 19, 2017: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/28919197/imported-poultry-meat-as-a-source-of-extended-spectrum-cephalosporin-resistant-cmy-2-producing-salmonella-heidelberg-and-s-minnesota-in-european-union-2014-2015
#3
Joana Campos, Joana Mourão, Leonor Silveira, Margarida Saraiva, Cristina Belo Correia, Ana Paula Maçãs, Luísa Peixe, Patrícia Antunes
Extended-spectrum cephalosporin (ESC)-resistant Salmonella has been described at low level in EU, nevertheless the increasing importation of poultry meat could be an important source of epidemic strains carrying ESC-resistant genes. We evaluated ESC resistance and characterized genetic platforms as well as the clonal relatedness of Salmonella isolates from poultry meat products imported into Portugal. All Salmonella isolates recovered from samples of fresh meat destined to be imported into the EU in the scope of Portuguese official border control between 2014 and 2015 were studied...
September 14, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28887202/hospital-sewage-water-a-reservoir-for-variants-of-new-delhi-metallo-%C3%AE-lactamase-blandm-and-esbl-producing-enterobacteriaceae
#4
Shadab Parvez, Asad U Khan
New Delhi metallo-β-lactamase (NDM)-producing Enterobacteriaceae has become a threat to public health. Hospital sewage is generally unexplored, having a potential for harbouring bacteria causing healthcare-associated infections. Hence, we initiated this study to monitor NDM-producing Enterobacteriaceae in hospital sewage water. We detected 32 isolates with blaNDM variants, 17 Escherichia coli, 8 Citrobacter freundii, 4 Shigella boydii, 2 Citrobacter braakii, and 1 Citrobacter farmeri in hospital sewage water, showing resistance to all antibiotics except colistin...
September 5, 2017: International Journal of Antimicrobial Agents
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
#5
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/28802274/horizontal-dissemination-of-antimicrobial-resistance-determinants-in-multiple-salmonella-serotypes-following-isolation-from-the-commercial-swine-operation-environment-after-manure-application
#6
Suchawan Pornsukarom, Siddhartha Thakur
The aim of this study was to characterize the plasmids carrying antimicrobial resistance (AMR) determinants in multiple Salmonella serotypes recovered from the commercial swine farm environment after manure application on land. Manure and soil samples were collected on day 0 before and after manure application on six farms in North Carolina, and sequential soil samples were recollected on days 7, 14, and 21 from the same plots. All environmental samples were processed for Salmonella, and their plasmid contents were further characterized...
October 15, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28799283/selection-and-transfer-of-an-inci1-tet-a-plasmid-of-escherichia-coli-in-an-ex-vivo-model-of-the-porcine-cecum-at-doxycycline-concentrations-caused-by-cross-contaminated-feed
#7
Laura E J Peeters, Thijs De Mulder, Els Van Coillie, Judith Huygens, Annemieke Smet, Els Daeseleire, Jeroen Dewulf, Hein Imberechts, Patrick Butaye, Freddy Haesebrouck, Siska Croubels, Marc Heyndrickx, Geertrui Rasschaert
AIMS: The aim of this study was to investigate the effect of subtherapeutic intestinal doxycycline (DOX) concentrations (4 and 1 mg l(-1) ), caused by cross-contamination of feed, on the enrichment of a DOX resistant commensal E. coli and it's resistance plasmid in an ex vivo model of the porcine cecum. METHODS AND RESULTS: A DOX resistant, tet(A) carrying, porcine commensal E. coli strain (EC 682) was cultivated for 6 days in the porcine cecum model under different conditions (0, 1 and 4 mg l(-1) DOX)...
August 11, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28728058/high-prevalence-of-esbls-in-retail-chicken-meat-despite-reduced-use-of-antimicrobials-in-chicken-production-france
#8
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/28689895/plasmid-mediated-transfer-of-ctx-m-55-extended-spectrum-beta-lactamase-among-different-strains-of-salmonella-and-shigella-spp-in-the-republic-of-korea
#9
Jin Seok Kim, Soojin Kim, Jungsun Park, Eunkyung Shin, Young-Sun Yun, Deog-Yong Lee, Hyo-Sun Kwak, Won Keun Seong, Gyung Tae Chung, Junyoung Kim
We screened 10 CTX-M-55-producing Shigella and Salmonella isolates from a national surveillance in Korea. The blaCTX-M-55 was located on the IncI1 (n=5), IncA/C (n=4) and IncZ (n=1) plasmids, downstream of ISEcp1, IS26-ISEcp1 and ISEcp1-IS5 sequences, respectively. These results indicate that CTX-M-55 has disseminated to other bacteria by lateral plasmid transfer.
March 30, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28683526/characteristics-of-transmissible-ctx-m-and-cmy-type-%C3%AE-lactamase-producing-escherichia-coli-isolates-collected-from-pig-and-chicken-farms-in-south-korea
#10
Seung Won Shin, Myunghwan Jung, Ho Geun Won, Kuastros Mekonnen Belaynehe, In Joong Yoon, Han Sang Yoo
The rapid dissemination of extended-spectrum β-lactamase (ESBL)-producing Escherichia coli has significantly contributed to public health hazard globally. A total of 281 E. coli strains recovered from pigs and chickens between 2009 and 2015 in South Korea were analyzed for ESBL production. ESBL phenotypes were recognized in 14 E. coli isolates; ten and three ESBLproducing isolates carried only blaCTX-M and blaCMY genes, respectively, and one isolate harbored both genes. The predominant CTX-M and CMY types were CTX-M-15 (n = 8) and CMY-2 (n = 3)...
September 28, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28674313/first-detection-of-an-escherichia-coli-strain-harboring-the-mcr-1-gene-in-retail-domestic-chicken-meat-in-japan
#11
Yusuke Ohsaki, Wataru Hayashi, Satomi Saito, Shunsuke Osaka, Yui Taniguchi, Shota Koide, Kumiko Kawamura, Yukiko Nagano, Yoshichika Arakawa, Noriyuki Nagano
Global spread of the plasmid-mediated colistin resistance gene, mcr-1 poses a challenge to public health because colistin is the last-line-of-defense against severe infections of 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 prevalence of mcr-1 in retail meats is not well known. We report here the first detection of mcr-1 in retail chicken meat. A total of 70 extended-spectrum beta-lactamase-producing E...
September 25, 2017: Japanese Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28674050/plasmids-of-diverse-inc-groups-disseminate-the-fosfomycin-resistance-gene-fosa3-among-escherichia-coli-isolates-from-pigs-chickens-and-dairy-cows-in-northeast-china
#12
Xiu-Mei Wang, Zhimin Dong, Stefan Schwarz, Yao Zhu, Xin Hua, Yanhe Zhang, Siguo Liu, Wan-Jiang Zhang
Thirty-nine fosfomycin-resistant Escherichia coli isolates carrying fosA3 were obtained from pigs, chickens, dairy cows, and staff in four northeastern provinces of China between June 2015 and April 2016. The fosA3 gene was colocated with blaCTX-M genes on conjugative plasmids of the incompatibility groups IncN (n = 12), IncN-F33:A(-):B(-)(n = 2), IncF33:A(-):B(-)(n = 14), IncF14:A(-):B(-)(n = 2), and IncI1/sequence type 136 (ST136) (n = 9). Four different genetic contexts of fosA3 were detected among the 39 E...
September 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28668729/characterization-of-antibiotic-resistant-and-pathogenic-escherichia-coli-in-irrigation-water-and-vegetables-in-household-farms
#13
Susana Araújo, Isabel A T Silva, Marta Tacão, Carla Patinha, Artur Alves, Isabel Henriques
This study aimed to characterize Escherichia coli present in irrigation water and vegetables from 16 household farms. Isolates were obtained from 50% of water (n=210 isolates) and 38% of vegetable samples (n=239). Phylogroups B1 (56% of isolates) and A (22%) were the most prevalent both in water and vegetables. Diarrheagenic strains were detected in vegetables. Irrespective of the source (i.e. water or vegetables), the most common antibiotic resistance was against streptomycin (89% resistant isolates) and tetracycline (24%)...
June 22, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28411217/transfer-potential-of-plasmids-conferring-extended-spectrum-cephalosporin-resistance-in-escherichia-coli-from-poultry
#14
Solveig Sølverød Mo, Marianne Sunde, Hanna Karin Ilag, Solveig Langsrud, Even Heir
Escherichia coli strains resistant to extended-spectrum cephalosporins (ESC) are widely distributed in Norwegian broiler production, and the majority harbor transferable IncK or IncI1 plasmids carrying blaCMY-2 Persistent occurrence in broiler farms may occur through the survival of ESC-resistant E. coli strains in the farm environment, or by transfer and maintenance of resistance plasmids within a population of environmental bacteria with high survival abilities. The aim of this study was to determine the transferability of two successful blaCMY-2-carrying plasmids belonging to the incompatibility groups IncK and IncI1 into E...
June 15, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28396551/specific-blactx-m-8-inci1-plasmid-transfer-among-genetically-diverse-escherichia-coli-isolates-between-humans-and-chickens
#15
Chihiro Norizuki, Jun-Ichi Wachino, Masahiro Suzuki, Kumiko Kawamura, Noriyuki Nagano, Kouji Kimura, Yoshichika Arakawa
We investigated the genetic backbones of 14 blaCTX-M-8-positive Escherichia coli isolates recovered from human stool samples and chicken meat. All isolates carried IncI1 plasmids with blaCTX-M-8 (blaCTX-M-8/IncI1), and most (9/14) belonged to a specific genetic lineage, namely, plasmid sequence type 113 (pST113). The genetic contexts of the nine blaCTX-M-8/IncI1 pST113 plasmids were similar, regardless of the source. These results suggest the probable local transfer of blaCTX-M-8/IncI1 between humans and chickens with genetically diverse E...
June 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28380311/spread-of-ctx-type-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-isolates-of-epidemic-clone-b2-o25-st131-among-dogs-and-cats-in-japan
#16
Kumiko Kawamura, Tae Sugawara, Nao Matsuo, Kengo Hayashi, Chihiro Norizuki, Kiyoko Tamai, Takaaki Kondo, Yoshichika Arakawa
This study was performed to investigate the carriage rates of CTX-M-type extended-spectrum β-lactamase (ESBL)-producing Escherichia coli among ill companion animals in Japan. Among the 178 nonrepetitive E. coli isolates, including 131 from dogs and 47 from cats, collected between September and November 2015, 42 (23.6%) isolates from 29 dogs and 13 cats were identified as ESBL producers. The antimicrobial susceptibility, O serotype, phylogenetic group, β-lactamase genotype, plasmid replicon type, and sequence type (ST) of each isolate were analyzed...
April 5, 2017: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/28379732/prevalence-of-plasmid-mediated-fosfomycin-resistance-gene-fosa3-among-ctx-m-producing-escherichia-coli-isolates-from-chickens-in-china
#17
Wei Jiang, Shuai Men, Linghan Kong, Suzhen Ma, Yongqiang Yang, Yongxiang Wang, Qiwu Yuan, Guangyang Cheng, Wencheng Zou, Hongning Wang
The aim of this study was to investigate the prevalence of fosfomycin resistance gene fosA3 and characterize plasmids harboring fosA3 among CTX-M-producing Escherichia coli from chickens in China. A total of 234 CTX-M-producing E. coli isolates collected from chickens from 2014 to 2016 were screened for the presence of plasmid-mediated fosfomycin resistance genes (fosA, fosA3, and fosC2). Clonal relatedness of fosA3-positive isolates was determined by pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST)...
April 2017: Foodborne Pathogens and Disease
https://www.readbyqxmd.com/read/28364731/clonal-diversity-of-extended-spectrum-beta-lactamase-producing-escherichia-coli-isolates-in-fecal-samples-of-wild-animals
#18
Filipe Cristóvão, Carla Andrea Alonso, Gilberto Igrejas, Margarida Sousa, Vanessa Silva, José Eduardo Pereira, Carmen Lozano, Gerardo Cortés-Cortés, Carmen Torres, Patrícia Poeta
The clonal diversity of extended-spectrum-β-lactamase (ESBL)-producing Escherichia coli isolates from nine different species of wild animals from distinct regions of Portugal and Spain and their content in replicon plasmids were analyzed. Among the initial 53 ESBL-producing E. coli isolates that were studied (from previous studies), 28 were selected, corresponding to different animal origins with distinct ESBL types and pulsed-field gel electrophoresis (PFGE) patterns. These 28 isolates produced different ESBLs ascribed to the following families: CTX-M, SHV and TEM...
March 1, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28338012/prevalence-of-st1193-clone-and-inci1-st16-plasmid-in-e-coli-isolates-carrying-blactx-m-55-gene-from-urinary-tract-infections-patients-in-china
#19
Liang Xia, Yang Liu, Shu Xia, Timothy Kudinha, Shu-Nian Xiao, Nan-Shan Zhong, Guo-Sheng Ren, Chao Zhuo
To study molecular epidemiology of CTX-M-55-carrying Escherichia coli isolates from urinary tract infections (UTIs) in China. 111 blaCTX-M-55-positive E.coli isolates from UTIs patients in China were studied. Pulsed-field gel electrophoresis (PFGE) and multilocus sequence typing (MLST) were used to analyze the homologies among the strains. Conjugation experiments, S1nuclease PFGE and PCR analysis were performed to characterize plasmids harboring blaCTX-M-55 and their genetic environment. 111 isolates were clustered into 86 individual pulsotypes and three clusters by PFGE...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28333298/occurrence-and-molecular-characteristics-of-esbl-ampc-producing-escherichia-coli-in-faecal-samples-from-horses-in-an-equine-clinic
#20
Ilias Apostolakos, Eelco Franz, Angela H A M van Hoek, Alice Florijn, Christiaan Veenman, Marianne M Sloet-van Oldruitenborgh-Oosterbaan, Cindy Dierikx, Engeline van Duijkeren
Objectives: To investigate the occurrence and characteristics of ESBL/AmpC-producing Escherichia coli in faecal samples from horses at one equine clinic in the Netherlands. Methods: A total of 91 horses, including residents and patients, were sampled. ESBL/AmpC-producing E. coli were identified by a combination disc diffusion test. Phylogenetic groups and MLST were determined. ESBL/AmpC genes were analysed using PCR and sequencing. Plasmids were characterized by transformation and PCR-based replicon typing...
July 1, 2017: Journal of Antimicrobial Chemotherapy
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