List of works by Christa Ewers

Acinetobacter pittii from Companion Animals Coharboring blaOXA-58, the tet(39) Region, and Other Resistance Genes on a Single Plasmid.

scientific article published on 6 November 2017

Adherent-invasive Escherichia coli phenotype displayed by intestinal pathogenic E. coli strains from cats, dogs, and swine.

scientific article

Adhesive threads of extraintestinal pathogenic Escherichia coli

scientific article

Antimicrobial resistance profiles of Escherichia coli from common European wild bird species.

scientific article published on 16 December 2009

Antimicrobial resistances do not affect colonization parameters of intestinal E. coli in a small piglet group

scientific article published on 08 October 2009

Avian pathogenic Escherichia coli (APEC)

scientific article published in September 2003

Avian pathogenic, uropathogenic, and newborn meningitis-causing Escherichia coli: how closely related are they?

scientific article published on 19 March 2007

Blast injury on harbour porpoises (Phocoena phocoena) from the Baltic Sea after explosions of deposits of World War II ammunition

scientific article published in 2022

CTX-M-15-D-ST648 Escherichia coli from companion animals and horses: another pandemic clone combining multiresistance and extraintestinal virulence?

scientific article

CTX-M-15-type extended-spectrum beta-lactamases-producing Escherichia coli from wild birds in Germany.

scientific article published in October 2010

Carriage of Extended-Spectrum Beta-Lactamase-Plasmids Does Not Reduce Fitness but Enhances Virulence in Some Strains of Pandemic E. coli Lineages.

scientific article

Characterization of a yjjQ mutant of avian pathogenic Escherichia coli (APEC).

scientific article published in April 2008

Clonal spread and interspecies transmission of clinically relevant ESBL-producing Escherichia coli of ST410--another successful pandemic clone?

scientific article

Clonal spread of highly successful ST15-CTX-M-15 Klebsiella pneumoniae in companion animals and horses

scientific article published on 27 June 2014

Companion animals: a relevant source of extended-spectrum β-lactamase-producing fluoroquinolone-resistant Citrobacter freundii

scientific article published on 11 November 2010

Comparable high rates of extended-spectrum-beta-lactamase-producing Escherichia coli in birds of prey from Germany and Mongolia

scientific article

Correlation between the genomic o454-nlpD region polymorphisms, virulence gene equipment and phylogenetic group of extraintestinal Escherichia coli (ExPEC) enables pathotyping irrespective of host, disease and source of isolation

scientific article

Detection of Shiga toxin- and extended-spectrum β-lactamase-producing Escherichia coli O145:NM and Ont:NM from calves with diarrhoea.

scientific article

Detection of Trichinella spiralis, T. britovi and T. pseudospiralis in muscle tissue with real-time PCR.

scientific article published on 26 June 2008

Detection of pandemic B2-O25-ST131 Escherichia coli harbouring the CTX-M-9 extended-spectrum beta-lactamase type in a feral urban brown rat (Rattus norvegicus).

scientific article

Differential expression of hemolysin genes in weakly and strongly hemolytic Brachyspira hyodysenteriae strains

scientific article published on 29 May 2020

ESBL-plasmid carriage in E. coli enhances in vitro bacterial competition fitness and serum resistance in some strains of pandemic sequence types without overall fitness cost.

scientific article

ESBL-plasmids carrying toxin-antitoxin systems can be "cured" of wild-type Escherichia coli using a heat technique.

scientific article

Emergence of human pandemic O25:H4-ST131 CTX-M-15 extended-spectrum-beta-lactamase-producing Escherichia coli among companion animals.

scientific article

ExPEC-typical virulence-associated genes correlate with successful colonization by intestinal E. coli in a small piglet group

scientific article published on 28 March 2008

Extended-Spectrum Beta-Lactamases Producing E. coli in Wildlife, yet Another Form of Environmental Pollution?

scientific article published on 19 December 2011

Extended-spectrum beta-lactamases-producing gram-negative bacteria in companion animals: action is clearly warranted!

scientific article published on March 2011

Extraintestinal pathogenic Escherichia coli (ExPEC) of human and avian origin belonging to sequence type complex 95 (STC95) portray indistinguishable virulence features

scientific article

First insights into antimicrobial resistance among faecal Escherichia coli isolates from small wild mammals in rural areas.

scientific article published on 31 May 2010

Frequent combination of antimicrobial multiresistance and extraintestinal pathogenicity in Escherichia coli isolates from urban rats (Rattus norvegicus) in Berlin, Germany

scientific article

Genetic diversity of porcine Pasteurella multocida strains from the respiratory tract of healthy and diseased swine

scientific article published on 4 May 2009

Genome Sequence of Avian Escherichia coli Strain IHIT25637, an Extraintestinal Pathogenic E. coli Strain of ST131 Encoding Colistin Resistance Determinant MCR-1.

scientific article published on September 2016

Genomic and Functional Analysis of Emerging Virulent and Multidrug-Resistant Escherichia coli Lineage Sequence Type 648

scientific article published on 24 May 2019

Highly diverse and antimicrobial susceptible Escherichia coli display a naïve bacterial population in fruit bats from the Republic of Congo.

scientific article

Identification of genes required for avian Escherichia coli septicemia by signature-tagged mutagenesis

scientific article

Identification of protective and broadly conserved vaccine antigens from the genome of extraintestinal pathogenic Escherichia coli

scientific article

Imported Pet Reptiles and Their "Blind Passengers"-In-Depth Characterization of 80 <i>Acinetobacter</i> Species Isolates

scientific article published on 24 April 2022

Infections with avian pathogenic and fecal Escherichia coli strains display similar lung histopathology and macrophage apoptosis

scientific article

Intestine and environment of the chicken as reservoirs for extraintestinal pathogenic Escherichia coli strains with zoonotic potential

scientific article

Is fecal carriage of extended-spectrum-β-lactamase-producing Escherichia coli in urban rats a risk for public health?

scientific article published on 4 March 2013

Mallard ducks - a waterfowl species with high risk of distributing Escherichia coli pathogenic for humans.

scientific article

Methicillin-resistant staphylococci (MRS) and extended-spectrum beta-lactamases (ESBL)-producing Enterobacteriaceae in companion animals: nosocomial infections as one reason for the rising prevalence of these potential zoonotic pathogens in clinical

scientific article published on 13 October 2011

Molecular characteristics of Escherichia coli serogroup O78 strains isolated from diarrheal cases in bovines urge further investigations on their zoonotic potential

scientific article published in December 2004

Molecular epidemiology of avian pathogenic Escherichia coli (APEC) isolated from colisepticemia in poultry

scientific article published in November 2004

Multiresistant uropathogenic Escherichia coli from a region in India where urinary tract infections are endemic: genotypic and phenotypic characteristics of sequence type 131 isolates of the CTX-M-15 extended-spectrum-β-lactamase-producing lineage

scientific article published on 8 October 2012

O-acetyltransferase gene neuO is segregated according to phylogenetic background and contributes to environmental desiccation resistance in Escherichia coli K1.

scientific article published on 4 August 2009

Pasteurella multocida involved in respiratory disease of wild chimpanzees

scientific article

Pathological Findings in Eurasian Otters (Lutra lutra) Found Dead between 2015−2020 in Schleswig-Holstein, Germany

scientific article published in 2021

Putative connection between zoonotic multiresistant extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli in dog feces from a veterinary campus and clinical isolates from dogs

scientific article published on 4 February 2015

Rapid detection of virulence-associated genes in avian pathogenic Escherichia coli by multiplex polymerase chain reaction

scientific article published in June 2005

Real-time PCR assay for the detection of species of the genus Mannheimia.

scientific article

Sequencing and functional annotation of avian pathogenic Escherichia coli serogroup O78 strains reveal the evolution of E. coli lineages pathogenic for poultry via distinct mechanisms

scientific article published on 28 December 2012

Signature-tagged mutagenesis in a chicken infection model leads to the identification of a novel avian pathogenic Escherichia coli fimbrial adhesin

scientific article

Suppression subtractive hybridization identifies an autotransporter adhesin gene of E. coli IMT5155 specifically associated with avian pathogenic Escherichia coli (APEC) ⬇️

scientific article published on September 9, 2010

The GimA locus of extraintestinal pathogenic E. coli: does reductive evolution correlate with habitat and pathotype?

scientific article

The chicken as a natural model for extraintestinal infections caused by avian pathogenic Escherichia coli (APEC).

scientific article published on 20 September 2008

Virulence characteristics and genetic affinities of multiple drug resistant uropathogenic Escherichia coli from a semi urban locality in India

scientific article

Virulence genotype of Pasteurella multocida strains isolated from different hosts with various disease status.

scientific article published on 19 January 2006

YjjQ Represses Transcription of flhDC and Additional Loci in Escherichia coli

scientific article

[ESBL-producing E. coli and EHEC in dogs and cats in the Tyrol as possible source of human infection]

scientific article published on 01 November 2012

[Mannheimia haemolytica and the pathogenesis of enzootic bronchopneumonia].

scientific article published in March 2004

[Pasteurella: insights into the virulence determinants of a heterogenous bacterial type].

scientific article published in September 2004

tkt1, located on a novel pathogenicity island, is prevalent in avian and human extraintestinal pathogenic Escherichia coli

scientific article

α-Haemolysin of Escherichia coli in IBD: a potentiator of inflammatory activity in the colon

scientific article

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