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Papers authored by Helmuth R

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High Heterogeneity within Methicillin-Resistant Staphylococcus aureus ST398 Isolates, Defined by Cfr9I Macrorestriction-Pulsed-Field Gel Electrophoresis Profiles and spa and SCCmec Types.

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Argudín MA, Fetsch A, Tenhagen BA, Hammerl JA, Hertwig S, Kowall J, Rodicio MR, Käsbohrer A, Helmuth R, Schroeter A, Mendoza MC, Bräunig J, Appel B, and Guerra B

Applied and environmental microbiology 76(3):652-8, 2010 Feb - Who cited this? | PubMed ID: 20023093 | Fulltext

pSGI15, a small ColE-like qnrB19 plasmid of a Salmonella enterica serovar Typhimurium strain carrying Salmonella genomic island 1 (SGI1).

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Hammerl JA, Beutlich J, Hertwig S, Mevius D, Threlfall EJ, Helmuth R, and Guerra B

The Journal of antimicrobial chemotherapy 65(1):173-5, 2010 Jan - Who cited this? | PubMed ID: 19861336 | Fulltext

Extended-spectrum {beta}-lactamases and AmpC {beta}-lactamases in ceftiofur-resistant Salmonella enterica isolates from food and livestock obtained in Germany during 2003-07.

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Rodríguez I, Barownick W, Helmuth R, Mendoza MC, Rodicio MR, Schroeter A, and Guerra B

The Journal of antimicrobial chemotherapy 64(2):301-9, 2009 Aug - Who cited this? | PubMed ID: 19474065 | Fulltext

Characterization of pathogenic and resistant genome repertoire reveals two clonal lines in Salmonella enterica subsp. enterica serovar Paratyphi B (+)-tartrate positive.

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Huehn S, Helmuth R, Bunge C, Guerra B, Junker E, Davies RH, Wattiau P, van Pelt W, and Malorny B

Foodborne pathogens and disease 6(4):431-43, 2009 May - Who cited this? | PubMed ID: 19292689 | Fulltext

Potential role for the 4,12 antigen in the prevalence of clonal salmonella serovars in poultry.

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Chia TW, Fegan N, Dykes GA, Huehn S, Bunge C, Junker E, Helmuth R, and Malorny B

Applied and environmental microbiology 75(10):3377-8, 2009 May - Who cited this? | PubMed ID: 19429568 | Fulltext

Poultry-associated Salmonella enterica subsp. enterica serovar 4,12:d:- reveals high clonality and a distinct pathogenicity gene repertoire.

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Huehn S, Bunge C, Junker E, Helmuth R, and Malorny B

Applied and environmental microbiology 75(4):1011-20, 2009 Feb - Who cited this? | PubMed ID: 19114530 | Fulltext

[Tasks and duties of veterinary reference laboratories for food borne zoonoses.].

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Ellerbroek L, Alter T, Johne R, Nöckler K, Beutin L, and Helmuth R

Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz 52(2):208-13, 2009 Feb - Who cited this? | PubMed ID: 19271255 | Fulltext

[Characterisation of a phenotypic monophasic variant belonging to Salmonella enterica subsp. enterica serovar Typhimurium from wild birds and its possible transmission to cats and humans].

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Hauser E, Hühn S, Junker E, Jaber M, Schroeter A, Helmuth R, Rabsch W, Winterhoff N, and Malorny B

Berliner und Munchener tierarztliche Wochenschrift 122(5-6):169-77, 2009 - Who cited this? | PubMed ID: 19517930 | Fulltext

Rapid classification and identification of salmonellae at the species and subspecies levels by whole-cell matrix-assisted laser desorption ionization-time of flight mass spectrometry .

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Dieckmann R, Helmuth R, Erhard M, and Malorny B

Applied and environmental microbiology 74(24):7767-78, 2008 Dec - Who cited this? | PubMed ID: 18952875 | Fulltext

Multi-locus variable-number tandem repeat analysis for outbreak studies of Salmonella enterica serotype Enteritidis.

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Malorny B, Junker E, and Helmuth R

BMC microbiology 8:84, 2008 - Who cited this? | PubMed ID: 18513386 | Fulltext

Plasmid-mediated quinolone resistance conferred by qnrS1 in Salmonella enterica serovar Virchow isolated from Turkish food of avian origin.

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Avsaroglu MD, Helmuth R, Junker E, Hertwig S, Schroeter A, Akcelik M, Bozoglu F, and Guerra B

The Journal of antimicrobial chemotherapy 60(5):1146-50, 2007 Nov - Who cited this? | PubMed ID: 17881633 | Fulltext

A real-time PCR for the detection of Salmonella Enteritidis in poultry meat and consumption eggs.

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Malorny B, Bunge C, and Helmuth R

Journal of microbiological methods 70(2):245-51, 2007 Aug - Who cited this? | PubMed ID: 17512995 | Fulltext

Class 1 integrons and resistance gene cassettes among multidrug resistant Salmonella serovars isolated from slaughter animals and foods of animal origin in Ethiopia.

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Molla B, Miko A, Pries K, Hildebrandt G, Kleer J, Schroeter A, and Helmuth R

Acta tropica 103(2):142-9, 2007 Aug - Who cited this? | PubMed ID: 17658448 | Fulltext

Multicenter validation study of two blockcycler- and one capillary-based real-time PCR methods for the detection of Salmonella in milk powder.

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Malorny B, Mäde D, Teufel P, Berghof-Jäger C, Huber I, Anderson A, and Helmuth R

International journal of food microbiology 117(2):211-8, 2007 Jun 30 - Who cited this? | PubMed ID: 17512624 | Fulltext

A pulsed field gel electrophoresis (PFGE) study that suggests a major world-wide clone of Salmonella enterica serovar Enteritidis.

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Pang JC, Chiu TH, Helmuth R, Schroeter A, Guerra B, and Tsen HY

International journal of food microbiology 116(3):305-12, 2007 May 30 - Who cited this? | PubMed ID: 17379345 | Fulltext

Molecular characterisation of Salmonella strains by an oligonucleotide multiprobe microarray.

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Malorny B, Bunge C, Guerra B, Prietz S, and Helmuth R

Molecular and cellular probes 21(1):56-65, 2007 Feb - Who cited this? | PubMed ID: 17029709 | Fulltext

[Ring-trial results for the cultural detection of Salmonella in poultry faeces].

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Malorny B, Dorn C, Schroeter A, Käsbohrer A, and Helmuth R

Berliner und Munchener tierarztliche Wochenschrift 120(7-8):334-9, 2007 - Who cited this? | PubMed ID: 17715826 | Fulltext

Evaluation of an immunomagnetic separation-real-time PCR assay for the rapid detection of Salmonella in meat.

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Notzon A, Helmuth R, and Bauer J

Journal of food protection 69(12):2896-901, 2006 Dec - Who cited this? | PubMed ID: 17186656 | Fulltext

Phenotypic and genotypic characterization of antimicrobial resistance in Escherichia coli O111 isolates.

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Guerra B, Junker E, Schroeter A, Helmuth R, Guth BE, and Beutin L

The Journal of antimicrobial chemotherapy 57(6):1210, 2006 Jun - Who cited this? | PubMed ID: 16603644 | Fulltext

Management recommendations of the Federal Institute for Risk Assessment (BfR) after the international BfR symposium "Towards a Risk Analysis of Antibiotic Resistance".

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Helmuth R and Hensel A

International journal of medical microbiology : IJMM 296 Suppl 41:15-7, 2006 Jun - Who cited this? | PubMed ID: 17024749 | Fulltext

Risk analysis according to the Federal Institute for Risk Assessment international symposium "Towards a Risk Analysis of Antibiotic Resistance".

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Hensel A and Helmuth R

International journal of medical microbiology : IJMM 296 Suppl 41:19-23, 2006 Jun - Who cited this? | PubMed ID: 17024750 | Fulltext

Molecular mechanisms of resistance in multidrug-resistant serovars of Salmonella enterica isolated from foods in Germany.

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Miko A, Pries K, Schroeter A, and Helmuth R

The Journal of antimicrobial chemotherapy 56(6):1025-33, 2005 Dec - Who cited this? | PubMed ID: 16227350 | Fulltext

Pulsed-field gel electrophoresis, plasmid profiles and phage types for the human isolates of Salmonella enterica serovar Enteritidis obtained over 13 years in Taiwan.

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Pang JC, Chiu TH, Chiou CS, Schroeter A, Guerra B, Helmuth R, and Tsen HY

Journal of applied microbiology 99(6):1472, 2005 - Who cited this? | PubMed ID: 16313420 | Fulltext

Diagnostic real-time PCR for detection of Salmonella in food.

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Malorny B, Paccassoni E, Fach P, Bunge C, Martin A, and Helmuth R

Applied and environmental microbiology 70(12):7046-52, 2004 Dec - Who cited this? | PubMed ID: 15574899 | Fulltext

Incidence of the recently described sulfonamide resistance gene sul3 among German Salmonella enterica strains isolated from livestock and food.

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Guerra B, Junker E, and Helmuth R

Antimicrobial agents and chemotherapy 48(7):2712-5, 2004 Jul - Who cited this? | PubMed ID: 15215132 | Fulltext

Characterization and localization of drug resistance determinants in multidrug-resistant, integron-carrying Salmonella enterica serotype Typhimurium strains.

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Guerra B, Junker E, Miko A, Helmuth R, and Mendoza MC

Microbial drug resistance (Larchmont, N.Y.) 10(2):83-91, 2004 - Who cited this? | PubMed ID: 15256022 | Fulltext

Towards the rational use of antibiotics: results of the first International Symposium on the Risk Analysis of Antibiotic Resistance.

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Helmuth R and Hensel A

Journal of veterinary medicine. B, Infectious diseases and veterinary public health 51(8-9):357-60, 2004 - Who cited this? | PubMed ID: 15525365 | Fulltext

Resistance of Salmonella isolates in Germany.

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Schroeter A, Hoog B, and Helmuth R

Journal of veterinary medicine. B, Infectious diseases and veterinary public health 51(8-9):389-92, 2004 - Who cited this? | PubMed ID: 15525371 | Fulltext

Interlaboratory diagnostic accuracy of a Salmonella specific PCR-based method.

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Malorny B, Hoorfar J, Hugas M, Heuvelink A, Fach P, Ellerbroek L, Bunge C, Dorn C, and Helmuth R

International journal of food microbiology 89(2-3):241-9, 2003 Dec 31 - Who cited this? | PubMed ID: 14623390 | Fulltext

Incidence of quinolone resistance in strains of Salmonella isolated from poultry, cattle and pigs in Germany between 1998 and 2001.

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Malorny B, Schroeter A, Guerra B, and Helmuth R

The Veterinary record 153(21):643-8, 2003 Nov 22 - Who cited this? | PubMed ID: 14667084 | Fulltext

Multiple-drug resistance in D-tartrate-positive Salmonella enterica serovar paratyphi B isolates from poultry is mediated by class 2 integrons inserted into the bacterial chromosome.

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Miko A, Pries K, Schroeter A, and Helmuth R

Antimicrobial agents and chemotherapy 47(11):3640-3, 2003 Nov - Who cited this? | PubMed ID: 14576136 | Fulltext

Phenotypic and genotypic characterization of antimicrobial resistance in German Escherichia coli isolates from cattle, swine and poultry.

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Guerra B, Junker E, Schroeter A, Malorny B, Lehmann S, and Helmuth R

The Journal of antimicrobial chemotherapy 52(3):489-92, 2003 Sep - Who cited this? | PubMed ID: 12888584 | Fulltext

Discrimination of d-tartrate-fermenting and -nonfermenting Salmonella enterica subsp. enterica isolates by genotypic and phenotypic methods.

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Malorny B, Bunge C, and Helmuth R

Journal of clinical microbiology 41(9):4292-7, 2003 Sep - Who cited this? | PubMed ID: 12958259 | Fulltext

Multiple resistance mechanisms in fluoroquinolone-resistant Salmonella isolates from Germany.

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Guerra B, Malorny B, Schroeter A, and Helmuth R

Antimicrobial agents and chemotherapy 47(6):2059, 2003 Jun - Who cited this? | PubMed ID: 12760900 | Fulltext

Phage typing of Salmonella enteritidis from different sources in Brazil.

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Nunes IA, Helmuth R, Schroeter A, Mead GC, Santos MA, Solari CA, Silva OR, and Ferreira AJ

Journal of food protection 66(2):324-7, 2003 Feb - Who cited this? | PubMed ID: 12597496 | Fulltext

[Typing of Salmonella by DNA-microarrays].

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Malorny B, Guerra B, Zeltz P, Rissler K, and Helmuth R

Berliner und Munchener tierarztliche Wochenschrift 116(11-12):482-6, 2003 - Who cited this? | PubMed ID: 14655626 | Fulltext

Detection of Salmonella spp.

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Malorny B and Helmuth R

Methods in molecular biology (Clifton, N.J.) 216:275-87, 2003 - Who cited this? | PubMed ID: 12512371 | Fulltext

Multicenter validation of the analytical accuracy of Salmonella PCR: towards an international standard.

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Malorny B, Hoorfar J, Bunge C, and Helmuth R

Applied and environmental microbiology 69(1):290-6, 2003 Jan - Who cited this? | PubMed ID: 12514007 | Fulltext

Characterization of a self-transferable plasmid from Salmonella enterica serotype typhimurium clinical isolates carrying two integron-borne gene cassettes together with virulence and drug resistance genes.

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Guerra B, Soto S, Helmuth R, and Mendoza MC

Antimicrobial agents and chemotherapy 46(9):2977-81, 2002 Sep - Who cited this? | PubMed ID: 12183256 | Fulltext

Molecular characterization of multiresistant d-tartrate-positive Salmonella enterica serovar paratyphi B isolates.

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Miko A, Guerra B, Schroeter A, Dorn C, and Helmuth R

Journal of clinical microbiology 40(9):3184-91, 2002 Sep - Who cited this? | PubMed ID: 12202551 | Fulltext

Prevalence of Escherichia coli O157:H7 prophage-like sequences among German Salmonella enterica serotype Typhimurium phage types and their use in detection of phage type DT104 by the polymerase chain reaction.

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Malorny B, Schroeter A, Bunge C, and Helmuth R

Veterinary microbiology 87(3):253-65, 2002 Jul 9 - Who cited this? | PubMed ID: 12052335 | Fulltext

[Report on Salmonella isolates submitted to the German National Veterinary Salmonella Reference Laboratory in the year 1999].

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Dorn C, Schroeter A, and Helmuth R

Berliner und Munchener tierarztliche Wochenschrift 115(7-8):252-8, 2002 - Who cited this? | PubMed ID: 12174721 | Fulltext

Evaluation of molecular typing methods for Salmonella enterica serovar Typhimurium DT104 isolated in Germany from healthy pigs.

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Malorny B, Schroeter A, Bunge C, Hoog B, Steinbeck A, and Helmuth R

Veterinary research 32(2):119-29, 2001 - Who cited this? | PubMed ID: 11361148 | Fulltext

[Increasing number of Salmonella paratyphi B isolates from slaughtered poultry sent in to the national Salmonella reference laboratory.].

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Dorn C, Schroeter A, Miko A, Protz D, and Helmuth R

Berliner und Munchener tierarztliche Wochenschrift 114(5-6):179-83, 2001 - Who cited this? | PubMed ID: 11413710 | Fulltext

Epidemiology of resistance to quinolones in Salmonella.

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Bager F and Helmuth R

Veterinary research 32(3-4):285-90, 2001 - Who cited this? | PubMed ID: 11432419 | Fulltext

Phage types, antibiotic susceptibilities and plasmid profiles of Salmonella typhimurium and Salmonella enteritidis strains isolated in Istanbul, Turkey.

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Anğ-Küçüker M, Tolun V, Helmuth R, Rabsch W, Büyükbaba-Boral O, Törümküney-Akbulut D, Susever S, and Anğ O

Clinical microbiology and infection : the official publication of the European Society of Clinical Microbiology and Infectious Diseases 6(11):593-9, 2000 Nov - Who cited this? | PubMed ID: 11168062 | Fulltext

Monitoring of antibiotic resistance in bacteria of animal origin: epidemiological and microbiological methodologies.

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Caprioli A, Busani L, Martel JL, and Helmuth R

International journal of antimicrobial agents 14(4):295-301, 2000 May - Who cited this? | PubMed ID: 10794950 | Fulltext

Salmonella in slaughter pigs of German origin: an epidemiological study.

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Käsbohrer A, Protz D, Helmuth R, Nöckler K, Blaha T, Conraths FJ, and Geue L

European journal of epidemiology 16(2):141-6, 2000 Feb - Who cited this? | PubMed ID: 10845263 | Fulltext

Clonal relationship of Salmonella enterica serovar typhimurium phage type DT104 in Germany and Austria.

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Prager R, Liesegang A, Rabsch W, Gericke B, Thiel W, Voigt W, Helmuth R, Ward L, and Tschäpe H

Zentralblatt fur Bakteriologie : international journal of medical microbiology 289(4):399-414, 1999 Oct - Who cited this? | PubMed ID: 10603659 | Fulltext

Incidence of quinolone resistance over the period 1986 to 1998 in veterinary Salmonella isolates from Germany.

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Malorny B, Schroeter A, and Helmuth R

Antimicrobial agents and chemotherapy 43(9):2278-82, 1999 Sep - Who cited this? | PubMed ID: 10471579 | Fulltext

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Papers authored by Helmuth R

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