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Clinical Microbiology Reviews, July 1998, p. 450-479, Vol. 11, No. 3
0893-8512/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.

Pathogenesis and Diagnosis of Shiga Toxin-Producing Escherichia coli Infections

James C. Paton* and Adrienne W. Paton

Molecular Microbiology Unit, Women's and Children's Hospital, North Adelaide, S.A. 5006, Australia

Since their initial recognition 20 years ago, Shiga toxin-producing Escherichia coli (STEC) strains have emerged as an important cause of serious human gastrointestinal disease, which may result in life-threatening complications such as hemolytic-uremic syndrome. Food-borne outbreaks of STEC disease appear to be increasing and, when mass-produced and mass-distributed foods are concerned, can involve large numbers of people. Development of therapeutic and preventative strategies to combat STEC disease requires a thorough understanding of the mechanisms by which STEC organisms colonize the human intestinal tract and cause local and systemic pathological changes. While our knowledge remains incomplete, recent studies have improved our understanding of these processes, particularly the complex interaction between Shiga toxins and host cells, which is central to the pathogenesis of STEC disease. In addition, several putative accessory virulence factors have been identified and partly characterized. The capacity to limit the scale and severity of STEC disease is also dependent upon rapid and sensitive diagnostic procedures for analysis of human samples and suspect vehicles. The increased application of advanced molecular technologies in clinical laboratories has significantly improved our capacity to diagnose STEC infection early in the course of disease and to detect low levels of environmental contamination. This, in turn, has created a potential window of opportunity for future therapeutic intervention.

* Corresponding author. Mailing address: Molecular Microbiology Unit, Women's and Children's Hospital, North Adelaide, S.A. 5006, Australia. Phone: 61-8-8204 6302. Fax: 61-8-8204 6051. E-mail: patonj{at}wch.sa.gov.au.

Clinical Microbiology Reviews, July 1998, p. 450-479, Vol. 11, No. 3
0893-8512/98/$04.00+0
Copyright © 1998, American Society for Microbiology. All rights reserved.


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Antimicrob. Agents Chemother. Clin. Vaccine Immunol.
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Copyright © 1998 by the American Society for Microbiology. All rights reserved.