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Institute for Food Safety and Hygiene

2012

Original papers and review paper

Althaus, D., Hofer, E., Corti, S., Julmi, A., Stephan, R. (2012). Bacteriological survey of ready-to-eat lettuce, fresh-cut fruits and sprouts collected from the Swiss market. Journal of Food Protection 75, 1338-1341.

Bonalli, M., Stephan, R., Käppeli, U., Cernela, N., Adank, L., Hächler, H. (2012). Salmonella enterica serotype Kentucky associated with human infections in Switzerland: genotype and resistance trends 2004-2009. Food Research International 45, 953-957.

Bonke, R., Wacheck, S., Bumann, C., Thum, C., Stüber, E., König, M., Stephan, R., Fredriksson-Ahomaa, M. (2012). High prevalence of Salmonella enterica subsp. diarizonae in tonsils of sheep at slaughter. Food Research International 45, 880-884.

Bonke, R., Wacheck, S., Stüber, E., Stephan, R., Fredriksson-Ahomaa, M. (2012). Detection of Salmonella spp. in small ruminants using immunoassy and PCR. Journal of Food Safety and Food Quality 63, 175-178.

Brengi, S., O’Brien, S.B., Pichel, M., Iversen, C., Arduino, M., Binsztein, N., Jensen, B., Pagotto, F., Ribot, E., Stephan, R., Cernela, N., Cooper K., Fanning, S. (2012). Development and validation of a PulseNet standardized protocol for sub-typing isolates of Cronobacter species. Foodborne Pathogens and Disease 9, 861-867.

Decristophoris, P., De Benedetti, A., Petignat, C., Attinger, M., Guillaume, J., Fiebig, L., Hattendorf, J., Cernela, N., Regula, G., Petrini, O., Zinsstag, J., Schelling, E. (2012).   Evaluation of pet contact as risk factor for carriage of multi-drug resistant staphylococci in nursing home residents. American Journal of Infection Control 40, 128-133.

Fredriksson-Ahomaa, M., Cernela, N., Hächler, H. Stephan, R. (2012). Yersinia enterocolitica strains associated with human infections in Switzerland 2001-2010. European Journal of Clinical Microbiology and Infectious Diseases 31, 1543-1550.

Fricker-Feer, C., Stephan, R., Lehner, A. (2012). Genetic diversity of different Cronobacter spp. isolates from cultural positive powdered infant formulae, ingredients and environment samples-consequences for epidemiological studies in processing plants. Milk Science International 67, 250-253.

Geser, N., Stephan, R., Korczak, B.M., Beutin, L., Hächler, H. (2012). Molecular identification of blaESBL genes from Enterobacteriaceae isolated from healthy human carriers in Switzerland. Antimicrobial Agents Chemotherapy 56, 1609-1612.

Geser, N., Stephan, R., Hächler, H. (2012). Occurrence and characteristics of extended-spectrum beta-lactamase (ESBL) producing Enterobacteriaceae in food producing animals, minced meat and raw milk. BMC Veterinary Research 8:21.

Hofer, E., Cernela, N., Stephan, R. (2012). Shiga toxin subtypes associated with Shiga toxin-producing Escherichia coli strains isolated from red deer, roe deer, chamois and ibex. Foodborne Pathogens and Disease 9, 792-795.

Hofer, E., Stephan, R., Reist, M., Zweifel, C. (2012). Application of a real-time PCR-based system for monitoring of O26, O103, O111, O145, and O157 Shiga toxin-producing Escherichia coli in cattle at slaughter. Zoonoses and Public Health 59, 408-415.

Johler, S., Moser, M., Corti, S., Stephan, R. (2012). A β-galactosidase negative E. coli leading to atypical colonies on RAPID’E.coli 2 agar. Journal of Food Safety and Food Quality 63, 179-181.

Johler, S., Moser, M., Engl, C., Tasara, T., Corti, S., Chen, J., Stephan, R. (2012). A coagulase and α-glucosidase negative variant of Staphylococcus aureus - a challenge for routine microbiological diagnostics. Journal of Clinical Microbiology 50, 1827-1828.

Karczmarczyk, M., Stephan, R., Hächler, H., Fanning, S. (2012). Complete nucleotide sequence of pVQS1 containing a quinolone resistance determinant from Salmonella enterica serovar Virchow associated with foreign travel. Journal of Antimicrobial Chemotherapy 67, 1861-1864.

Lange, C.E, Tobler, K., Lehner, A., Vetsch, E., Favrot, C. (2012). A case of a canine pigmented plaque associated with the presence of a Chi-Papillomavirus. Veterinary Dermatology 23, 76-80.

Lehner, A., Fricker-Feer, C., Stephan, R. (2012). Identification of the recently described Cronobacter condimenti by a rpoB based PCR system. Journal of Medical Microbiology 61, 1034-1035.

Mattila, M., Somervuo, P., Rattei, T., Korkeala, H., Stephan, R., Tasara, T. (2012). Phenotypic and transcriptomic analyses of sigma L-dependent characteristics in Listeria monocytogenes EGDe. Food Microbiology 32, 152-164.

Niederer, L., Kuhnert, P., Egger, R., Büttner, S., Hächler, H., Korczak, B. (2012). Genotypes and antibiotic resistances of Campylobacter jejuni and Campylobacter coli from domestic and travel-associated human cases. Applied and Environmental Microbiology 78, 288-291.

Obwegeser, T., Stephan, R., Hofer, E., Zweifel, C. (2012). Shedding of foodborne pathogens and microbial carcass contamination of hunted wild ruminants. Veterinary Microbiology 159, 149-154.

Peng, S., Stephan, R., Hummerjohann, J., Blanco, J., Zweifel, C. (2012). In vitro characterization of Shiga toxin-producing and generic Escherichia coli in respect of cheese-production relevant stresses. Journal of Food Safety and Food Quality 63, 136-141.

Sarno, E., Stephan, R., Zweifel, C. (2012). Occurrence of Erysiolpelothrix spp., Salmonella spp. and Listeria spp. in tonsils of healthy Swiss pigs at slaughter. Journal of Food Safety and Food Quality 63, 11-15.

Stephan, R., Hächler, H. (2012). Discovery of extended-spectrum β-lactamase producing Escherichia coli among hunted deer, chamois and ibex. Schweizer Archiv für Tierheilkunde 154, 475-478.

Stephan, R., Loretz, M., Eggenberger, E., Grest, P., Basso, W., Grimm, F. (2012). Erster Nachweis von Sarcocystis hjorti bei der Fleischuntersuchung von Rothirschen in der Schweiz. Archiv für Tierheilkunde 154, 539-542.

Wacheck, S., Sarno, E., Märtlbauer, E., Zweifel, C., Stephan, R. (2012). Seroprevalence of anti-HEV and anti-Salmonella antibodies in pigs at slaughter in Switzerland. Journal of Food Protection 75, 1483-1485.

Wattinger, L., Stephan, R., Layer, F., Johler, S. (2012). Comparison of Staphylococcus aureus isolates associated with food intoxication with isolates from human nasal carriers and human infections. European Journal of Clinical Microbiology and Infectious Diseases 31, 455-464.

Zweifel, C., Obwegeser, T., Stephan, R. (2012). Mikrobiologischer Status von Rotwild-, Rehwild- und Gamswild-Schlachttierkörpern. Fleischwirtschaft 8, 99-102.

Zweifel, C., Stephan, R. (2012). Spices and herbs as source of Salmonella-related foodborne diseases. Food Research International 45, 765-769.

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Book chapters

Stephan, R., Hächler, H. Campyobacter spp. in: Mikrobiologische Untersuchung von Lebensmitteln, Hrsg. Baumgart, Becker, Stephan, Behr’s Verlag ISBN: 978-3-86022-160-0.

Stephan, R., Houf, K. Arcobacter spp. in: Mikrobiologische Untersuchung von Lebensmitteln, Hrsg. Baumgart, Becker, Stephan, Behr’s Verlag ISBN: 978-3-86022-160-0., in press.

Vogel, G., Pflüger, V., Stephan, R. MALDI-TOF MS zur Identifizierung von Mikroorganismen: Mikrobiologische Untersuchung von Lebensmitteln, Hrsg. Baumgart, Becker, Stephan, Behr’s Verlag ISBN: 978-3-86022-160-0. in press.

Zweifel, C., Stephan, R. Chapter 3 'Microbial Decontamination of Poultry Carcasses' (In: Microbial decontamination in the food industry: Novel methods and applications; Part 1. Pathogen contamination in different food products. ED Demirci and Ngadi,Woodheadpublishing, 2012. ISBN 978-0-85709-085-0

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Habilitation

Tasara, T. (2012). Molecular investigation of cold, osmotic and acid stress adaptation mechanisms in Listeria monocytogenes.

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Thesis

Fricker-Feer, C. (2012). Identification and further characterization of Enterobacteriaceae and Cronobacter spp. in a milk powder and infant formula processing plant. (Dr. rer. biol. vet.; Universität München)

Geser, N. (2012). Occurrence and characteristics of extended-spectrum beta-lactamase (ESBL) producing Enterobacteriaceae in food producing animals, minced meat and raw milk. (Dr. med. vet.)

Hofer, E. (2012). Application of a real-time PCR-based system for monitoring of O26, O103, O111, O145, and O157 Shiga toxin-producing Escherichia coli in cattle at slaughter. (Dr. med. vet.)

Koller, S. (2012). Methicillin-resistant Staphylococcus lentus strains isolated from chicken carcasses and employees of a poultry abattoir. (Dr. med. vet.)

Obwegeser, T. (2012). Shedding of foodborne pathogens and microbial carcass contamination of hunted wild ruminants. (Dr. med. vet.)

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Weiterführende Informationen

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