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https://www.readbyqxmd.com/read/28324679/methicillin-resistant-and-susceptible-staphylococcus-aureus-from-retail-meat-in-denmark
#1
Yuanyue Tang, Jesper Larsen, Jette Kjeldgaard, Paal Skytt Andersen, Robert Skov, Hanne Ingmer
Livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) is increasingly related to human infections. Farmers and veterinarians have the highest risk, but infections have also occurred in individuals without prior contact to livestock. Clonal complex (CC) 398 is the predominant LA-MRSA lineage causing human infections, and although pigs are the major source of CC398 worldwide, poultry and other animals are also reservoirs. This raises concern for transmission of MRSA via meat. In this study, the occurrence and characteristics of S...
March 6, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28304109/methicillin-resistant-staphylococcus-aureus-mrsa-a-controversial-food-borne-pathogen
#2
REVIEW
Daniil Sergelidis, Apostolos S Angelidis
Methicillin-resistant Staphylococcus aureus (MRSA) is a major cause of severe healthcare-associated (HA) infections. Although during the last decade the incidence of HA invasive infections has dropped, the incidence of community-associated MRSA (CA-MRSA) infections has risen among the general population. Moreover, CA-MRSA, livestock-associated MRSA (LA-MRSA) and HA MRSA (HA-MRSA) can be found in foods intended for human consumption. Several studies from different geographical areas have reported the presence of enterotoxin genes in several MRSA food isolates...
March 17, 2017: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/28284852/current-methodologies-on-genotyping-for-nosocomial-pathogen-methicillin-resistant-staphylococcus-aureus-mrsa
#3
REVIEW
Jian Miao, Lequn Chen, Jingwen Wang, Wenxin Wang, Dingqiang Chen, Lin Li, Bing Li, Yang Deng, Zhenbo Xu
Methicillin-resistant Staphylococcus aureus (MRSA) is a common pathogen in hospitals and the community. As the rapid spread and wide distribution of antimicrobial resistance (such as MRSA), treatment for infectious diseases caused by microorganisms has become a vital threat. Thus, early identification and genotyping are essential for further therapeutic treatment and the control of rapid expansion of MRSA. In combination with applications and data feedbacks, this review focused on the currently available molecular-based assays on their utility and performance for rapid typing of MRSA, especially on effective molecular-based methods...
March 9, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28284608/characterization-of-pig-associated-methicillin-resistant-staphylococcus-aureus
#4
Jun Li, Nansong Jiang, Yuebin Ke, Andrea T Feßler, Yang Wang, Stefan Schwarz, Congming Wu
Livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) have been reported in various countries worldwide. However, although China is one of the biggest pig and pork producers, large-scale studies on pig-associated LA-MRSA from China are scarce. The aims of this study were to analyze 2420 non-duplicate samples collected from pigs at swine farms and slaughterhouses in different regions in China during 2014 for the prevalence of pig-associated MRSA and to determine the antimicrobial resistance pheno- and genotypes of the respective isolates...
March 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28151984/livestock-associated-staphylococcus-aureus-on-polish-pig-farms
#5
Aneta Mroczkowska, Jacek Żmudzki, Natalia Marszałek, Monika Orczykowska-Kotyna, Iga Komorowska, Agnieszka Nowak, Anna Grzesiak, Ewelina Czyżewska-Dors, Arkadiusz Dors, Zygmunt Pejsak, Waleria Hryniewicz, Tomasz Wyszomirski, Joanna Empel
BACKGROUND: Livestock-associated Staphylococcus aureus (LA-SA) draws increasing attention due to its particular ability to colonize farm animals and be transmitted to people, which in turn leads to its spread in the environment. The aim of the study was to determine the dissemination of LA-SA on pig farms selected throughout Poland, characterize the population structure of identified S. aureus, and assess the prevalence of LA-SA carriage amongst farmers and veterinarians being in contact with pigs...
2017: PloS One
https://www.readbyqxmd.com/read/28076471/genomic-information-on-multidrug-resistant-livestock-associated-methicillin-resistant-staphylococcus-aureus-st398-isolated-from-a-brazilian-patient-with-cystic-fibrosis
#6
Danielle F Lima, Renata Wf Cohen, Géssica A Rocha, Rodolpho M Albano, Elizabeth A Marques, Robson S Leão
Alarmingly, the isolation of methicillin-resistant Staphylococcus aureus (MRSA) has been increasing among patients with cystic fibrosis (CF). During a previous molecular characterisation of MRSA isolates obtained from patients with CF from Rio de Janeiro, Brazil, one isolate was identified as the ST398 clone, a livestock-associated (LA) MRSA. In this study, we report the draft genome sequence of an LA-MRSA ST398 clone isolated from a patient with CF.
January 1, 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28036110/detection-and-molecular-characterization-of-livestock-associated-mrsa-in-raw-meat-on-retail-sale-in-north-west-england
#7
A Fox, B Pichon, H Wilkinson, M Doumith, R L R Hill, J McLauchlin, A M Kearns
Limited data are available on the prevalence of livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) in the UK. We tested 124 raw meat samples for MRSA including pork (n = 63), chicken (n = 50) and turkey (n = 11) collected from retail outlets in North West England between March and July 2015. MRSA was recovered from nine (7·3%) samples (four chicken, three pork and two turkey) from different butchers and supermarkets. Four were labelled of UK origin, three were from continental Europe; the origin was not specified for two samples...
December 30, 2016: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/27999031/mrsa-in-persons-not-living-or-working-on-a-farm-in-a-livestock-dense-area-prevalence-and-risk-factors
#8
Tizza P Zomer, Cornelia C H Wielders, Christiaan Veenman, Paul Hengeveld, Wim van der Hoek, Sabine C de Greeff, Lidwien A M Smit, Dick J Heederik, C Joris Yzermans, Thijs Bosch, Catharina B M Maassen, Engeline van Duijkeren
OBJECTIVES: MRSA emerged in livestock and persons in contact with livestock is referred to as livestock-associated MRSA (LA-MRSA). We assessed the prevalence and risk factors for MRSA carriage in persons not living or working on a farm. METHODS: A cross-sectional study was performed among 2492 adults living in close proximity of livestock farms. Persons working and/or living on farms were excluded. Nasal swabs were cultured using selective media. Participants completed questionnaires and the distance from the residential address to the nearest farm was calculated...
December 20, 2016: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/27881973/livestock-associated-methicillin-resistant-staphylococcus-aureus-la-mrsa-clonal-complex-cc-398-isolated-from-uk-animals-belong-to-european-lineages
#9
Meenaxi Sharma, Javier Nunez-Garcia, Angela M Kearns, Michel Doumith, Patrick R Butaye, M Angeles Argudín, Angela Lahuerta-Marin, Bruno Pichon, Manal AbuOun, Jon Rogers, Richard J Ellis, Christopher Teale, Muna F Anjum
In recent years, there has been an increase in the number of livestock-associated methicillin resistant Staphylococcus aureus (LA-MRSA) clonal complex (CC) 398 recovered from S. aureus isolated animals in the UK. To determine possible origins of 12 LA-MRSA CC398 isolates collected after screening more than a thousand S. aureus animal isolates from the UK between 2013 and 2015, whole genome sequences (WGS) of CC398 European, including UK, and non-European isolates from diverse animal hosts were compared. Phylogenetic reconstruction applied to WGS data to assess genetic relatedness of all 89 isolates, clustered the 12 UK CC398 LA-MRSA within the European sub-lineages, although on different nodes; implicating multiple independent incursions into the UK, as opposed to a single introduction followed by clonal expansion...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27759766/vancomycin-intermediate-livestock-associated-methicillin-resistant-staphylococcus-aureus-st398-t9538-from-swine-in-brazil
#10
Luisa Z Moreno, Mauricio C Dutra, Marina Moreno, Thais Sp Ferreira, Givago Fr da Silva, Carlos Ec Matajira, Ana Paula S Silva, Andrea M Moreno
Livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) has been mainly related with pig farming, in Europe and North America, with the ST398 as the most commonly identified type of LA-MRSA. Here we present the draft genome of the first vancomycin-intermediate MRSA ST398/t9538 isolated from a swine presenting exudative epidermitis in Brazil.
October 2016: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/27660260/40-years-of-veterinary-papers-in-jac-what-have-we-learnt
#11
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/27640079/comparison-of-livestock-associated-and-health-care-associated-mrsa-genes-virulence-and-resistance
#12
COMPARATIVE STUDY
Nico T Mutters, Christian P Bieber, Catherine Hauck, Gerald Reiner, Veronika Malek, Uwe Frank
Livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) may colonize and infect humans with close contact to pigs. We compared phenotypic and genotypic differences in resistance and virulence of LA-MRSA isolates from farms and farmers with hospital-acquired methicillin-resistant S. aureus (HA-MRSA) and assessed carriage rates. Samples from pigs (n=330), occupationally exposed personnel (n=63), the farm environment (n=134), and hospital patients (n=220) were obtained. Approximately 50% (166/330) of pigs were MRSA positive...
December 2016: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/27605711/molecular-epidemiology-of-staphylococcus-aureus-in-the-general-population-in-northeast-germany-results-of-the-study-of-health-in-pomerania-ship-trend-0
#13
Silva Holtfreter, Dorothee Grumann, Veronika Balau, Annette Barwich, Julia Kolata, André Goehler, Stefan Weiss, Birte Holtfreter, Stephanie S Bauerfeind, Paula Döring, Erika Friebe, Nicole Haasler, Kristin Henselin, Katrin Kühn, Sophie Nowotny, Dörte Radke, Katrin Schulz, Sebastian R Schulz, Patricia Trübe, Chi Hai Vu, Birgit Walther, Susanne Westphal, Christiane Cuny, Wolfgang Witte, Henry Völzke, Hans Jörgen Grabe, Thomas Kocher, Ivo Steinmetz, Barbara M Bröker
Population-based studies on Staphylococcus aureus nasal colonization are scarce. We examined the prevalence, resistance, and molecular diversity of S. aureus in the general population in Northeast Germany. Nasal swabs were obtained from 3,891 adults in the large-scale population-based Study of Health in Pomerania (SHIP-TREND). Isolates were characterized using spa genotyping, as well as antibiotic resistance and virulence gene profiling. We observed an S. aureus prevalence of 27.2%. Nasal S. aureus carriage was associated with male sex and inversely correlated with age...
November 2016: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/27592463/unusual-presence-of-the-immune-evasion-gene-cluster-in-livestock-associated-mrsa-of-lineage-cc398-causing-peridural-and-psoas-abscesses-in-a-poultry-farmer
#14
Mar Olga Pérez-Moreno, María José Centelles-Serrano, Julio Nogales-López, Marie France Domenech-Spanedda, Carmen Lozano, Carmen Torres
OBJECTIVE: To characterize a methicillin-resistant Staphylococcus aureus (MRSA) isolate responsible for an aggressive infection (peridural and psoas abscess secondary to haematogenous septic arthritis) in a poultry farmer. METHODS: Molecular characterization was performed, including spa- and multilocus sequence typing of the isolate, assessment of its resistance phenotype and detection of tetracycline resistance and of virulence and immune evasion cluster (IEC) genes were performed...
August 31, 2016: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/27530849/genomic-insights-into-the-emergence-and-spread-of-international-clones-of-healthcare-community-and-livestock-associated-meticillin-resistant-staphylococcus-aureus-blurring-of-the-traditional-definitions
#15
REVIEW
A M Bal, G W Coombs, M T G Holden, J A Lindsay, G R Nimmo, P Tattevin, R L Skov
The evolution of meticillin-resistant Staphylococcus aureus (MRSA) from meticillin-susceptible S. aureus has been a result of the accumulation of genetic elements under selection pressure from antibiotics. The traditional classification of MRSA into healthcare-associated MRSA (HA-MRSA) and community-associated MRSA (CA-MRSA) is no longer relevant as there is significant overlap of identical clones between these groups, with an increasing recognition of human infection caused by livestock-associated MRSA (LA-MRSA)...
September 2016: Journal of Global Antimicrobial Resistance
https://www.readbyqxmd.com/read/27516381/methicillin-resistant-staphylococcus-aureus-cc398-in-humans-and-pigs-in-norway-a-one-health-perspective-on-introduction-and-transmission
#16
Carl Andreas Grøntvedt, Petter Elstrøm, Marc Stegger, Robert Leo Skov, Paal Skytt Andersen, Kjersti Wik Larssen, Anne Margrete Urdahl, Øystein Angen, Jesper Larsen, Solfrid Åmdal, Siri Margrete Løtvedt, Marianne Sunde, Jørgen Vildershøj Bjørnholt
BACKGROUND:  Emerging livestock-associated methicillin-resistant Staphylococcus aureus (MRSA) persist in livestock populations and represent a reservoir for transmission to humans. Understanding the routes of introduction and further transmission is crucial to control this threat to human health. METHODS:  All reported cases of livestock-associated MRSA (CC398) in humans and pigs in Norway between 2008 and 2014 were included. Data were collected during an extensive outbreak investigation, including contact tracing and stringent surveillance...
December 1, 2016: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/27374912/heavy-metal-and-disinfectant-resistance-genes-among-livestock-associated-methicillin-resistant-staphylococcus-aureus-isolates
#17
M Angeles Argudín, Birgit Lauzat, Britta Kraushaar, Patricia Alba, Yvonne Agerso, Lina Cavaco, Patrick Butaye, M Concepción Porrero, Antonio Battisti, Bernd-Alois Tenhagen, Alexandra Fetsch, Beatriz Guerra
Livestock associated methicillin-resistant Staphylococcus aureus (LA-MRSA) has emerged in animal production worldwide. Most LA-MRSA in Europe belong to the clonal complex (CC) 398. The reason for the LA-MRSA emergence is not fully understood. Besides antimicrobial agents used for therapy, other substances with antimicrobial activity applied in animal feed, including metal-containing compounds might contribute to their selection. Some of these genes have been found in various novel SCCmec cassettes. The aim of this study was to assess the occurrence of metal-resistance genes among a LA-S...
August 15, 2016: Veterinary Microbiology
https://www.readbyqxmd.com/read/27345493/a-geospatial-analysis-of-flies-and-the-spread-of-antimicrobial-resistant-bacteria
#18
Frieder Schaumburg, Francis Chinedum Onwugamba, Ruslan Akulenko, Georg Peters, Alexander Mellmann, Robin Köck, Karsten Becker
Livestock is often colonized with ESBL-producing Enterobacteriaceae (ESBL-E) and Staphylococcus aureus. There is a risk that flies spread antimicrobial resistant bacteria from livestock to humans. Here, we screened flies from urban and rural areas near the city of Münster, Germany, for the presence of ESBL-E and S. aureus and compared molecular characteristics of these isolates with those isolated from humans in the same region. In total, 1346 single flies were grinded and cultured overnight in BHI-broth. The broth was cultured on Columbia blood agar and selective media for the detection of S...
November 2016: International Journal of Medical Microbiology: IJMM
https://www.readbyqxmd.com/read/27254022/changing-characteristics-of-livestock-associated-meticillin-resistant-staphylococcus-aureus-isolated-from-humans-emergence-of-a-subclade-transmitted-without-livestock-exposure-the-netherlands-2003-to-2014
#19
Thijs Bosch, Martijn van Luit, Gerlinde N Pluister, Dineke Frentz, Anja Haenen, Fabian Landman, Sandra Witteveen, Naomi van Marm-Wattimena, Han G van der Heide, Leo M Schouls
Since 2007, livestock-associated meticillin-resistant Staphylococcus aureus (LA-MRSA) has become the predominant MRSA clade isolated from humans in the Netherlands. To assess possible temporal changes, we molecularly characterised over 9,000 LA-MRSA isolates submitted from 2003 to 2014 to the Dutch MRSA surveillance. After an initial rapid increase with a peak in 2009 (n = 1,368), the total number of submitted LA-MRSA isolates has been slowly decreasing to 968 in 2014 and over 80% of LA-MRSA belonged to one of three predominant MLVA/spa-types...
May 26, 2016: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/27185355/antibiotic-resistance-profiles-of-coagulase-negative-staphylococci-in-livestock-environments
#20
Sonja M K Schoenfelder, Ying Dong, Andrea T Feßler, Stefan Schwarz, Christoph Schoen, Robin Köck, Wilma Ziebuhr
Livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) have globally emerged in animal husbandry. In addition to methicillin resistance, LA-MRSA may carry a variety of novel and uncommon antimicrobial resistance genes. Occurrence of the same resistance genes in coagulase-negative staphylococci (CoNS) and S. aureus suggests an ongoing genetic exchange between LA-MRSA and other staphylococci whose driving forces in the ecological niche of the farm environment are, however, still poorly understood...
April 30, 2016: Veterinary Microbiology
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