2014

Abgottspon, H., Nüesch-Inderbinen, M., Zurfluh, K., Althaus, D., Hächler, H., Stephan, R. (2014). Enterobacteriaceae with extended-spectrum- and pAmpC-type ß-lactamase-encoding genes isolated from freshwater fish from two lakes in Switzerland. Antimicrobial Agents and Chemotherapy 58,2482–2484.

Abgottspon, H., Stephan, R., Bagutti, C., Brodmann, P., Hächler, H., Zurfluh, K. (2014). Characteristics of extended-spectrum cephalosporin resistant Escherichia coli isolated from Swiss and imported poultry meat. Journal of Food Protection 77, 112–115.

Abgottspon, H., Zurfluh, K., Nüesch-Inderbinen, M., Hächler, H., Stephan, R. (2014). Quinolone resistance mechanisms in Salmonella enterica serovars Hadar, Kentucky, Virchow, Schwarzengrund and S. enterica spp. enterica serovar 4,5,12:i:- isolated from humans in Switzerland: identification of a novel qnrD variant, qnrD2. Antimicrobial Agents and Chemotherapy 58, 3560-3563.

Althaus, D., Lehner, A., Brisse, S., Maury, M., Tasara, T., Stephan, R. (2014). Characterization of Listeria monocytogenes strains isolated during 2011-2013 from human infections in Switzerland. Foodborne Pathogens and Disease 11, 753-758.

Althaus, D., Stephan, R., Zweifel, C. (2014). Mikrobiologische Prozessanalyse der Geflügelschlachtung in drei Schlachtbetrieben. Rundschau für Fleischhygiene und Lebensmittelüberwachung 9, 310-313.

Arguedas-Villa, C., Kovacevic, J, Allen, K., Stephan, R, Tasara, T. (2014). Cold growth behavior and genetic comparison of Canadian and Swiss Listeria monocytogenes strains associated with the food supply chain and human listeriosis cases. Food Microbiology 40,81-87.

Baumgartner, A., Niederhauser, I., Johler, S. (2014). Virulence and resistance gene profiles of Staphylococcus aureus strains isolated from ready-to-eat foods. Journal of Food Protection 77, 1232-1236.

Supplementary Table (PDF, 87 KB)

Brandl, H., Fricker-Feer, C., Ziegler, D., Mandal, J., Stephan, R., Lehner, A. (2014). Distribution and identification of culturable airborne microorganisms in a Swiss milk processing facility. Journal of Dairy Science 1, 240-247.

Cernela, N., Nüesch-Inderbinen, M., Hächler, H., Stephan, R. (2014). Antimicrobial resistance patterns and genotypes of Salmonella enterica serovar Hadar strains associated with human infections in Switzerland: 2005-2010. Epidemiology and Infection 142, 84-89.

Fasel, D., Mellmann, A., Cernela, N., Hächler, H., Fruth, A., Khanna, N., Egli, A., Beckmann, Ch., Hirsch, H.H., Goldenberger, D., Stephan, R. (2014). Hemolytic uremic syndrome in a 65 year-old male linked to a very unusual type of stx2e and eae harboring O51:H49 Shiga-toxin producing Escherichia coli. Journal of Clinical Microbiology 52, 1301-1303.

Hächler, H., Stephan, R. (2014). Transfer of producers of extended-spectrum beta-lactamase at the human-foodchain-environment-wild life interface in Switzerland. The APUA Newsletter Vol 32, No2.

Herzog, K., Engeler Dusel, J., Hugentobler, M., Beutin, L., Sägesser, G., Stephan, R., Hächler, H., Nüesch-Inderbinen, M. (2014). Diarrheagenic enteroaggregative Escherichia coli causing urinary tract infection and bacteremia leading to sepsis. Infection 42, 441-444.

Keller, S.M., Stephan, R., Kuenzler, R., Meylan, M., Wittenbrink, M.M. (2014). Comparison of fecal culture and F57 real-time polymerase chain reaction for the detection of Mycobacterium avium subspecies paratuberculosis in Swiss cattle herds with a history of paratuberculosis. Acta Veterinaria Scandinavica 56:68.

Künzler, R., Torgerson, P., Keller, S., Wittenbrink, M., Stephan, R., Knubben-Schweizer, G., Berchtold, B., Meylan, M. (2014). Observed management practices in relation to the risk of infection with paratuberculosis and to the spread of Mycobacterium avium subsp. paratuberculosis in Swiss dairy and beef herds. BMC Veterinary Research, 10:132.

Loetscher, Y., Albiker, D., Stephan, R., Kreuzer, M., Messikommer, R.E. (2014). Differences between spent hens of different genotype in performance, meat yield and suitability of the meat for sausage production. Animal: An International Journal of Animal Bioscience 7:1-9.

Loetscher, Y., Kreuzer, M., Albiker, D., Stephan, R., Messikommer, R.E. (2014). Effect of replacing dietary vitamin E by sage on performance and meatiness of spent hens, and the oxidative stability of sausages produced from their meat. British Poultry Science 55, 576–584.

Luxner, J., Zarfel, G., Johler, S., Feierl, G., Leitner, E., Hoenigl, M., Grisold, A.J. (2014). Genetic characterization of Staphylococcus aureus isolates causing bloodstream infections in Austria. Diagnostic Microbiology and Infectious Disease 78, 153-156.

Merz, A., Pflüger, V., Johler, S. (2014). Coagulase-negative Staphylcococci lead to false-positive results on chromID S. aureus and chromID MRSA agar. Journal of Food Safety and Food Quality 65, 137-140.

Merz, A., Stephan, R., Corti, S., Wattinger, L., Ewy, A., Zweifel, C. (2014). Verifikation der Schlachthygiene in kleineren Schlachtbetrieben: Erhebung von Daten zum mikrobiologischen Status von Schlachttierkörpern im Rahmen eines laufenden Monitoringprogrammes in den Urkantonen der Schweiz. Rundschau für Fleischhygiene und Lebensmittelüberwachung 66, 406–409.

Müller, A., Hächler, H., Stephan, R., Lehner, A. (2014). Presence of AmpC beta-lactamases, CSA-1, CSA-2, CMA-1, and CMA-2 with an unusual resistance phenotype in Cronobacter sakazakii and Cronobacter malonaticus. Microbial Drug Resistance 20, 275-280.

Nüesch-Inderbinen, M.T., Stalder, U., Johler, S., Hächler, H., Stephan, R., Nüesch, H.-J. (2014). Intrafamilial spread of a Panton-Valentine leukocidin-positive community-acquired methicillin-resistant Staphylococcus aureus belonging to the paediatric clone ST5 SSCmecIV. JMM Case Reports 2014 1. Published online September 12, 2014. doi:10.1099/jmmcr.0.001859.

Pedersen, K., Sørensen, G., Szabo, I., Hächler, H., Le Hello, S. (2014). Repeated isolation of Salmonella enterica Goverdhan, a very rare serovar, from Danish poultry surveillance samples. Veterinary Microbiology 174, 596–599.

Peng, S., Stephan, R., Hummerjohann, J., Tasara, T. (2014). Evaluation of three reference genes of Escherichia coli for mRNA expression level normalization in view of salt and organic acid stress exposure in food. FEMS Microbiology Letters 355, 78-82.

Peng, S., Stephan, R., Hummerjohann, J., Tasara, T. (2014). Transcriptional analysis of different stress response genes in Escherichia coli strains subjected to sodium chloride and lactic acid stress. FEMS Microbiology Letters 361, 131-137.

Poirel, L., Stephan, R., Perreten, V., Nordmann, P. (2014). The carbapenemase threat in the animal world: the wrong culprit. Journal of Antimicrobial Chemotherapy 69, 2007-2008.

Rüegsegger, F., Corti, S. Sihto, H.M., Johler, S. (2014). Toxic bovine mastitis caused by Staphylococcus aureus in twin cows. Schweizer Archiv für Tierheilkunde 156, 539-542.

Sarno, E., Costanzo, N., Quaranta, V., Luigi Santoro, A.M., Stephan, R. (2014). Prevalence of IgG against hepatitis E virus, Salmonella spp., and Toxoplasma gondii in meat juice samples from wild boars hunted in Southern Italy. Journal of Food Safety and Food Control 65, 141-144.

Sihto, H.M., Tasara, T., Stephan, R. Johler, S. (2014). Validation of reference genes for normalization of qPCR mRNA expression levels in S. aureus exposed to osmotic and lactic acid stress conditions encountered during food production and preservation. FEMS Microbiology Letters 356, 134-140.

Stalder, U., Stephan, R., Corti, S., Bludau, M., Maeschli, A., Klocke, P., Johler, S. (2014). Staphylococcus aureus isolated from colostrum of dairy heifers represent a closely related group exhibiting highly homogeneous genomic and antimicrobial resistance features. Journal of Dairy Science 97, 4997-5000.

Stephan, R., Grim, Ch.J., Gopinath, G.R., Mammel, M.K., Sathyamoorthy, V., Trach, L.H., Chase, H.R., Fanning, S., Tall, B.D. (2014). Re-examination of the taxonomic status of Enterobacter helveticus, Enterobacter pulveris, and Enterobacter turicensis as members of Cronobacter and description of Siccibacter turicensis com. nov., Franconibacter helveticus comb. nov., and Franconibacter pulveris com. nov. International Journal of Systematic and Evolutionary Microbiology 64, 3402-3410.

Stephan, R., Johler, S., Oesterle, N., Näumann, G., Vogel, G., Pflüger, V. (2014). Rapid and reliable species identification of scallops by MALDI-TOF Mass Spectrometry. Food Control 46, 6-9.

Tasara, T., Weinmaier, T., Klumpp, J., Rattei, T., Stephan, R. (2014). Complete genome sequence of Listeria monocytogenes Lm60 - a strain with an enhanced cold adaptation capacity. Genome Announcements 2(6):e01248-14. doi:10.1128/genomeA.01248-14.

Tschudin-Sutter, S., Frei, R., Stephan, R., Hächler, H., Nogarth, D., Widmer, A.F. (2014). Extended-spectrum beta-lactamase (ESBL)-producing Enterobacteriaceae – a threat from the kitchen. Infection Control and Hospital Epidemiology 35, 581-584.

Wang, J., Stephan, R., Power, K., Yan, Q., Hächler, H., Fanning, S. (2014). Nucleotide sequences of 16 transmissible plasmids identified in nine multi-drug resistant Escherichia coli isolates expressing an ESBL phenotype isolated from food-producing animals and healthy humans. Journal of Antimicrobial Chemotherapy 69,2658-2668.

Zbinden, C., Stephan, R., Johler, S., Borel, N., Bünter, J., Bruckmaier, R.M., Wellnitz, O. (2014). The inflammatory response of primary bovine mammary epithelial cells to Staphylococcus aureus strains is linked to the bacterial phenotype. PLoS One 9(1): e87374. doi:10.1371/journal.pone.0087374.

Zurfluh, K., Abgottspon, H., Hächler, H., Nüesch-Inderbinen, M., Stephan, R. (2014). Quinolone resistance mechanisms among extended-spectrum beta-lactamase (ESBL) producing Escherichia coli isolated from rivers and lakes in Switzerland. PLoS One 9(4):e95864

Zurfluh, K., Jakobi, G., Stephan, R., Hächler, H., Nüesch-Inderbinen, M. (2014). Replicon typing of plasmids carrying blaCTX-M-1 in Enterobacteriaceae of animal, environmental and human origin. Frontiers in Microbiology 5:555. doi: 10.3389/fmicb.2014.00555.

Zurfluh, K., Wang, J., Klumpp, J., Nüesch-Inderbinen, M., Fanning, S., Stephan, R. (2014). Vertical transmission of highly similar blaCTX-M-1-harbouring IncI1 plasmids in Escherichia coli with different MLST types in the poultry production pyramid. Frontiers in Microbiology 5:519. doi: 10.3389/fmicb.2014.00519.

Zweifel, C., Capek, M., Stephan, R. (2014). Prozessanalyse der Rinderschlachtung: Einfluss der Prozessstufen auf den Oberflächenkeimgehalt von Schlachttierkörpern. Rundschau für Fleischhygiene und Lebensmittelüberwachung 4, 114-116.

Zweifel, C., Capek, M., Stephan, R. (2014). Microbiological contamination of cattle carcasses at different stages of slaughter in two abattoirs. Meat Science 98, 198-202.

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Stephan, R. Lehner, A., Zweifel, C., Hächler, H. (2014). Non-typhöse Salmonellen: Lebensmittelhygienische Bedeutung. Behr's Verlag, 1. Auflage, ISBN 978-3-95468-128-0

Fredriksson-Ahomaa, M., Stephan, R. Shigatoxin-producing E. coli. in: Meat inspection and control in the slaughterhouse. Ed. Ninios, T., Lundén, J., Korkeala, H., Fredriksson-Ahomaa, M. Wiley-Blackwell, Oxford, UK, 2014, ISBN 978-1-118-52586-9.

Upmann M., Stephan R. Laboratory Accreditation. In: Carrick Devine and Michael Dikeman, editors-in-chief. Encyclopedia of Meat Sciences 2e, Vol. 2, Oxford: Elsevier; 2014. pp. 145-151.

Zweifel, C., Stephan, R. Microbial contamination during slaughtering. in: Meat inspection and control in the slaughterhouse. Ed. Ninios, T., Lundén, J., Korkeala, H., Fredriksson-Ahomaa, M. Wiley-Blackwell, Oxford, UK, 2014, ISBN 978-1-118-52586-9.

Zweifel, C., Stephan, R. Carcass decontamination. in: Meat inspection and control in the slaughterhouse. Ed. Ninios, T., Lundén, J., Korkeala, H., Fredriksson-Ahomaa, M. Wiley-Blackwell, Oxford, UK, 2014, ISBN 978-1-118-52586-9.

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Althaus, D. (2014). Characterization of Listeria monocytogenes strains isolated during 2011-2013 from human infections in Switzerland. (Dr. med. vet.)

Peng, S. (2014). Survival of shiga toxin-producing E. coli during production and ripening of raw milk cheese. (Dr. sc. ETH)

Stalder, U. (2014). Staphylococcus aureus isolated from colostrum of dairy heifers represent a closely related group exhibiting highly homogeneous genomic and antimicrobial resistance features. (Dr. med. vet.)

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Merz, A. (2014). Molecular epidemiological investigations on two dairy farms with S. aureus mastitis problems.

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Abgottspon, H. (2014). Further characterization of Enterobacteriaceae with higher generation cephalosporin and quinolone resistance determinants isolated from different origins.

Glier, M. (2014). Plasmid characterisation of CTX-M-15 encoding plasmids isolated from Enterobactericeae of various origins.

Jakobi, G. (2014). Characterisation of CTX-M-1 extended-spectrum beta-lactamase encoding plasmids from Enterobacteriaceae isolated from different origins.