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Title: Advances in molecular serotyping and subtyping of Escherichia coli

Journal Article · · Frontiers in Microbiology
 [1];  [2];  [1];  [1];  [1];  [3]
  1. U.S. Dept. of Agriculture, Wyndmoor, PA (United States)
  2. Pennsylvania State Univ., University Park, PA (United States)
  3. U.S. Food and Drug Administration, College Park, MD (United States)

Escherichia coli plays an important role as a member of the gut microbiota; however, pathogenic strains also exist, including various diarrheagenic E. coli pathotypes and extraintestinal pathogenic E. coli that cause illness outside of the GI-tract. E. coli have traditionally been serotyped using antisera against the ca. 186 O-antigens and 53 H-flagellar antigens. Phenotypic methods, including bacteriophage typing and O- and H- serotyping for differentiating and characterizing E. coli have been used for many years; however, these methods are generally time consuming and not always accurate. Advances in next generation sequencing technologies have made it possible to develop genetic-based subtyping and molecular serotyping methods for E. coli, which are more discriminatory compared to phenotypic typing methods. Furthermore, whole genome sequencing (WGS) of E. coli is replacing established subtyping methods such as pulsedfield gel electrophoresis, providing a major advancement in the ability to investigate food-borne disease outbreaks and for trace-back to sources. Furthermore, a variety of sequence analysis tools and bioinformatic pipelines are being developed to analyze the vast amount of data generated by WGS and to obtain specific information such as O- and H-group determination and the presence of virulence genes and other genetic markers.

Research Organization:
Oak Ridge Institute for Science and Education (ORISE), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-06OR23100
OSTI ID:
1257610
Journal Information:
Frontiers in Microbiology, Vol. 7; ISSN 1664-302X
Publisher:
Frontiers Research FoundationCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 69 works
Citation information provided by
Web of Science

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The Escherichia coli Serogroup O1 and O2 Lipopolysaccharides Are Encoded by Multiple O-antigen Gene Clusters journal February 2017
Multiplex polymerase chain reaction detection of Shiga toxin genes and antibiotic sensitivity of Escherichia coli O157:H7 isolated from beef meat in Quetta, Pakistan journal September 2018
New Approaches for Escherichia coli Genotyping journal January 2020
Antimicrobial resistance and integron gene cassette arrays in commensal Escherichia coli from human and animal sources in IRI journal August 2016
Fourier transform infrared spectroscopy: unlocking fundamentals and prospects for bacterial strain typing journal November 2018
Multiplex real-time PCR assay for detection of Escherichia coli O157:H7 and screening for non-O157 Shiga toxin-producing E. coli journal November 2017
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