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Auflistung nach Autor "Karch, Helge"
Anzeige der Publikationen 1-19 von 19
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2008-08-01ZeitschriftenartikelAnalysis of collection of hemolytic uremic syndrome-associated enterohemorrhagic Escherichia coli. Mellmann, Alexander; Bielaszewska, Martina; Köck, Robin; Friedrich, Alexander W.; Fruth, Angelika; Middendorf, Barbara; Harmsen, Dag; Schmidt, M. Alexander; Karch, HelgeMultilocus sequence typing of 169 non-O157 enterohemorrhagic Escherichia coli (EHEC) isolated from patients with hemolytic uremic syndrome (HUS) demonstrated 29 different sequence types (STs); 78.1% of these strains clustered ...
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2018-08-31ZeitschriftenartikelAttack of the clones: whole genome-based characterization of two closely related enterohemorrhagic Escherichia coli O26 epidemic lineages Karnisova, Lucia; Marejkova, Monika; Hrbackova, Hana; Mellmann, Alexander; Karch, Helge; Fruth, Angelika; Drevinek, Pavel; Blahova, Kveta; Bielaszewska, Martina; Nunvar, JaroslavBackground: Enterohemorrhagic Escherichia coli (EHEC) O26:H11/H−, the most common non-O157 serotype causing hemolytic uremic syndrome worldwide, are evolutionarily highly dynamic with new pathogenic clones emerging ...
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2011-06-22ZeitschriftenartikelCharacterisation of the Escherichia coli strain associated with an outbreak of haemolytic uraemic syndrome in Germany, 2011: a microbiological study Bielaszewska, Martina; Mellmann, Alexander; Zhang, Wenlan; Köck, Robin; Fruth, Angelika; Bauwens, Andreas; Peters, Georg; Karch, HelgeBackground: In an ongoing outbreak of haemolytic uraemic syndrome and bloody diarrhoea caused by a virulent Escherichia coli strain O104:H4 in Germany (with some cases elsewhere in Europe and North America), 810 cases ...
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2011-01-04ZeitschriftenartikelChromosomal instability in enterohaemorrhagic Escherichia coli O157:H7: impact on adherence, tellurite resistance and colony phenotype. Bielaszewska, Martina; Middendorf, Barbara; Tarr, Phillip I.; Zhang, Wenlan; Prager, Rita; Aldick, Thomas; Dobrindt, Ulrich; Karch, Helge; Mellmann, AlexanderTellurite (Tel) resistant enterohaemorrhagic Escherichia coli (EHEC) O157:H7 is a global pathogen. In strain EDL933 Tel resistance (Tel(R) ) is encoded by duplicate ter cluster in O islands (OI) 43 and 48, which also harbour ...
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2012-02-16ZeitschriftenartikelExperiences from the Shiga toxin-producing Escherichia coli O104:H4 outbreak in Germany and research needs in the field, Berlin, 28–29 November 2011 Stark, Klaus; Bauerfeind, Rolf; Bernard, Helen; Eckmanns, Tim; Ethelberg, Steen; Flieger, Antje; Giesecke, J.; Greiner, M.; Karch, Helge; Krause, Gérard; Mielke, Martin; O'Brien, S. J.; Pulz, M.; Scheutz, F.; Schielke, Anika; Stahl, R. A.; Takkinen, J.; Tarr, Phillip I.; Tauxe, R. V.; Werber, DirkThis report presents the main findings from an international workshop on Shiga toxin-producing Escherichia coli (STEC), held on 28–29 November 2011, organised by the Robert Koch Institute [1]. The workshop assembled ...
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2014-01-10ZeitschriftenartikelHeteropathogenic virulence and phylogeny reveal phased pathogenic metamorphosis in Escherichia coli O2:H6 Bielaszewska, Martina; Schiller, Roswitha; Lammers, Lydia; Bauwens, Andreas; Fruth, Angelika; Middendorf, Barbara; Schmidt, Alexander; Tarr, Phillip I.; Dobrindt, Ulrich; Karch, Helge; Mellmann, AlexanderExtraintestinal pathogenic and intestinal pathogenic (diarrheagenic) Escherichia coli differ phylogenetically and by virulence profiles. Classic theory teaches simple linear descent in this species, where non-pathogens ...
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2015-07-31ZeitschriftenartikelHighly Virulent Non-O157 Enterohemorrhagic Escherichia coli (EHEC) Serotypes Reflect Similar Phylogenetic Lineages, Providing New Insights into the Evolution of EHEC Eichhorn, Inga; Heidemanns, Katrin; Semmler, Torsten; Kinnemann, Bianca; Mellmann, Alexander; Harmsen, Dag; Anjum, Muna F.; Schmidt, Herbert; Fruth, Angelika; Valentin-Weigand, Peter; Heesemann, Jürgen; Suerbaum, Sebastian; Karch, Helge; Wieler, Lothar H.Enterohemorrhagic Escherichia coli (EHEC) is the causative agent of bloody diarrhea and extraintestinal sequelae in humans, most importantly hemolytic-uremic syndrome (HUS) and thrombotic thrombocytopenic purpura (TTP). ...
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2017-02-03ZeitschriftenartikelHost cell interactions of outer membrane vesicle-associated virulence factors of enterohemorrhagic Escherichia coli O157: Intracellular delivery, trafficking and mechanisms of cell injury Bielaszewska, Martina; Rüter, Christian; Bauwens, Andreas; Greune, Lilo; Jarosch, Kevin-André; Steil, Daniel; Zhang, Wenlan; He, Xiaohua; Lloubes, Roland; Fruth, Angelika; Kim, Kwang Sik; Schmidt, M. Alexander; Dobrindt, Ulrich; Mellmann, Alexander; Karch, HelgeOuter membrane vesicles (OMVs) are important tools in bacterial virulence but their role in the pathogenesis of infections caused by enterohemorrhagic Escherichia coli (EHEC) O157, the leading cause of life-threatening ...
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2002-09-01ZeitschriftenartikelInfektionen des Menschen durch enterohämorrhagische Escherichia coli (EHEC) in der Bundesrepublik Deutschland von 1998 bis 2001 Prävalenz und TypenspektrumFruth, Angelika; Prager, Rita; Friedrich, Alexander W.; Kuczius, T.; Roggentin, Peter; Karch, Helge; Ammon, Andrea; Bockemühl, Jochen; Tschäpe, HelmutIn der Bundesrepublik Deutschland weisen die intestinalen Infektionen mit enterohämorrhagischen Escherichia coli (EHEC) in den Jahren von 1998 bis 2001 eine außerordentlich große biologische Erregervielfalt auf. Es zeigt ...
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1997-05-01ZeitschriftenartikelInfektionen des Menschen durch enterohämorrhagischeEscherichia coli (EHEC) in Deutschland, 1996 Bockemühl, Jochen; Karch, Helge; Tschäpe, Helmut1996 wurden von uns insgesamt 96 Fälle von hämolytischurämischem Syndrom (HUS) durch EHEC Erregernachweis und/oder Nachweis spezifischer Antikörper gesichert. Hinzu kommen 63 durch EHEC verursachte Enteritisfälle und 40 ...
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2011-05-26ZeitschriftenartikelLarge and ongoing outbreak of haemolytic uraemic syndrome, Germany, May 2011 Frank, Christina; Faber, Mirko; Askar, Mona; Bernard, Helen; Fruth, Angelika; Gilsdorf, Andreas; Höhle, Michael; Karch, Helge; Krause, Gérard; Prager, Rita; Spode, Anke; Stark, Klaus; Werber, DirkSince early May 2011, an increased incidence of haemolytic uraemic syndrome (HUS) and bloody diarrhoea related to infections with Shiga toxin-producing Escherichia coli (STEC) has been observed in Germany, with most cases ...
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2008-02-28ZeitschriftenartikelLooking for tips to find icebergs - surveillance of haemolytic uraemic syndrome to detect outbreaks of Shiga toxin-producing E. coli infection Werber, Dirk; Frank, Christina; Wadl, Maria; Karch, Helge; Fruth, Angelika; Stark, Klaus
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2009-09-01ZeitschriftenartikelPhylogeny and Disease Association of Shiga toxin-Producing Escherichia coli O91 Mellmann, Alexander; Fruth, Angelika; Friedrich, Alexander W.; Wieler, Lothar H.; Harmsen, Dag; Werber, Dirk; Middendorf, Barbara; Bielaszewska, Martina; Karch, HelgeThe diversity and relatedness of 100 Shiga toxin–producing Escherichia coli O91 isolates from different patients were examined by multilocus sequence typing. We identified 10 specific sequence types (ST) and 4 distinct ...
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2011-07-20ZeitschriftenartikelProspective genomic characterization of the German enterohemorrhagic escherichia coli O104:H4 outbreak by rapid next generation sequencing technology. Mellmann, Alexander; Harmsen, Dag; Cummings, Craig A.; Zentz, Emily B.; Leopold, Shana R.; Rico, Alain; Prior, Karola; Szczepanowski, Rafael; Ji, Yongmei; Zhang, Wenlan; McLaughlin, Stephen F.; Henkhaus, John K.; Leopold, Benjamin; Bielaszewska, Martina; Prager, Rita; Brzoska, Pius M.; Moore, Richard L.; Guenther, Simone; Rothberg, Jonathan M.; Karch, HelgeAn ongoing outbreak of exceptionally virulent Shiga toxin (Stx)-producing Escherichia coli O104:H4 centered in Germany, has caused over 830 cases of hemolytic uremic syndrome (HUS) and 46 deaths since May 2011. Serotype ...
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2011-05-01ZeitschriftenartikelRecent outbreak of hemolytic uremic syndrome in Germany Kunzendorf, Ulrich; Karch, Helge; Werber, Dirk; Haller, Hermann
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2008-11-21ZeitschriftenartikelSorbitol-fermenting enterohaemorrhagic Escherichia coli O157:H− causes another outbreak of haemolytic uraemic syndrome in children Alpers, Katharina; Werber, Dirk; Frank, Christina; Koch, Judith; Friedrich, Alexander W.; Karch, Helge; Heiden, Matthias an der; Prager, Rita; Fruth, Angelika; Bielaszewska, Martina; Morlock, Gabi; Heissenhuber, A.; Diedler, A.; Gerber, A.; Ammon, AndreaAn outbreak of haemolytic uraemic syndrome (HUS) among children caused by infection with sorbitol-fermenting enterohaemorrhagic Escherichia coli O157:H- (SF EHEC O157:H-) occurred in Germany in 2002. This pathogen has ...
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2006-10-04ZeitschriftenartikelSurveillance Lebensmittel-übertragener Infektionserkrankungen durch das Infektionsschutzgesetz - Möglichkeiten und Anforderungen Werber, Dirk; Kramer, Michael H.; Buchholz, Udo; Koch, Judith; Weise, Ekkehard; Bockemühl, Jochen; Huppertz, Hans-Iko; Karch, Helge; Zimmerhackl, L. B.; Pulz, Matthias; Wildner, Manfred; Tschäpe, Helmut; Ammon, AndreaDie Epidemiologie Lebensmittel-übertragener Erkrankungen hat sich verändert. Ausbrüche treten in zunehmendem Maße als Ansammlung räumlich oder zeitlich verteilter Einzelerkrankungen in Erscheinung und nicht mehr nur als ...
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2015-08-18ZeitschriftenartikelVirulence from vesicles: Novel mechanisms of host cell injury by Escherichia coli O104:H4 outbreak strain Kunsmann, Lisa; Rüter, Christian; Bauwens, Andreas; Greune, Lilo; Glüder, Malte; Kemper, Björn; Fruth, Angelika; Wai, Sun Nyunt; He, Xiaohua; Lloubes, Roland; Schmidt, M. Alexander; Dobrindt, Ulrich; Mellmann, Alexander; Karch, Helge; Bielaszewska, MartinaThe highly virulent Escherichia coli O104:H4 that caused the large 2011 outbreak of diarrhoea and haemolytic uraemic syndrome secretes blended virulence factors of enterohaemorrhagic and enteroaggregative E. coli, but their ...
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1998-10-01ZeitschriftenartikelZur Situation der Infektionen des Menschen durch enterohämorrhagische Escherichia coli (EHEC) in Deutschland 1997 Bockemühl, Jochen; Karch, Helge; Tschäpe, Helmut1997 wurden in den Laboratorien der Autoren insgesamt 101 Fälle von hämolytisch-urämischem Syndrom (HUS) durch Erregerisolierung (69 Fälle) oder durch Nachweis spezifischer anti-LPS IgM-Antikörper gegen die EHEC-O-Gruppe ...