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Study of polymorphic variable-number of tandem repeats loci in the ECOR collection and in a set of pathogenic Escherichia coli and Shigella isolates for use in a genotyping assay.
A study of the relationship between the ECOR strains as determined by polymorphisms in seven variable-number of tandem repeats (VNTR) loci and the MLVA method was used to genotype isolates from patients and suspected sources in a recent outbreak of E. coli O103 in Norway.
Outbreak of haemolytic uraemic syndrome in Norway caused by stx2-positive Escherichia coli O103:H25 traced to cured mutton sausages
An outbreak caused by a rare STEC variant (O103:H25, stx2-positive), which more than half of the diagnosed patients developed HUS, indicating that the causative organism is particularly virulent.
Octaplex PCR and fluorescence-based capillary electrophoresis for identification of human diarrheagenic Escherichia coli and Shigella spp.
A multiplex PCR assay, amplifying seven specific virulence genes and one internal control gene in a single reaction, was developed to identify the five main pathotypes of diarrheagenic Escherichia
Norwegian Sheep Are an Important Reservoir for Human-Pathogenic Escherichia coli O26:H11
ABSTRACT A previous national survey of Escherichia coli in Norwegian sheep detected eae-positive (eae +) E. coli O26:H11 isolates in 16.3% (80/491) of the flocks. The purpose of the present study was
Minimal transmission of SARS-CoV-2 from paediatric COVID-19 cases in primary schools, Norway, August to November 2020
With preventive measures implemented in schools, minimal child-to-child and child- to-adult transmission is found, supporting that under 14 year olds are not the drivers of SARS-CoV-2 transmission.
Evaluation of multiple-locus variable number of tandem-repeats analysis (MLVA) as a method for identification of clonal groups among enteropathogenic, enterohaemorrhagic and avirulent Escherichia
Multiple-locus variable number of tandem-repeats analysis (MLVA) scheme was found as suitable, but more rapid and easier to standardize than PFGE for identifying genetically related E. coli O26 strains.
Comparative Genomics to Delineate Pathogenic Potential in Non-O157 Shiga Toxin-Producing Escherichia coli (STEC) from Patients with and without Haemolytic Uremic Syndrome (HUS) in Norway
The results indicate that STECs from different phylogenetic backgrounds have independently acquired virulence genes that determine pathogenic potential, and that the content of such genes is overlapping between HUS-associated and non-HUS strains.
Shiga Toxin 2a in Escherichia albertii
E scherichia albertii is an emerging human enteric pathogen ([1][1]). It belongs to the attaching and effacing group of bacteria, which also includes enteropathogenic and Shiga toxin-producing
PCR-Based Detection and Molecular Characterization of Shiga Toxin-Producing Escherichia coli Strains in a Routine Microbiology Laboratory over 16 years
Patients with STEC infection are described and the STEC strains detected in the laboratory by use of PCR for stx 1, stx 2, and eae from 1996 through 2011 are characterized, finding none of the potential virulence genes analyzed were significantly more frequent among HUS-associated than non-HUS- associated strains.
An international outbreak of Salmonella enterica serotype Enteritidis linked to eggs from Poland: a microbiological and epidemiological study.
This outbreak highlights the public health value of multi-country sharing of epidemiological, trace-back, and microbiological data and routine use of WGS in salmonella surveillance and outbreak response promises to identify and stop outbreaks in the future.