Factors affecting survival of Shigatoxin-producing Escherichia coli on abiotic surfaces

International Journal of Food Microbiology
Trond MøretrøSolveig Langsrud

Abstract

Shigatoxin-producing Escherichia coli (STEC) causes severe infections, and has been the cause of a number of foodborne outbreaks. Knowledge on the survival of STEC is crucial in order to limit the risk of cross contamination and transfer of STEC to food during processing. In this study survival of STEC and non-STEC on surfaces under various humidities, temperatures and in the presence of different types of soil was investigated. A model system with controlled relative humidity and temperature was established by using saturated salt solutions. All the 12 STEC strains had a reduction in viable count during incubation at 70% RH at 12 degrees C. The reduction was 2-3.5 log and 4.5-5.5 log after 1 and 7 days of incubation, respectively. Surviving cells were observed after 19 days of incubation. The STEC strains were more resistant to desiccation than non-STEC strains. STEC survived better at 12 degrees C, compared to 20 degrees C. The survival of STEC was much lower than the survival of a Staphylococcus simulans strain tested, which showed less than 1 log reduction until day 7 at 70% RH at 12 degrees C, while several STEC strains had comparable survival to a Salmonella Agona strain. The survival of two STEC strains tested was highes...Continue Reading

References

Mar 24, 1983·The New England Journal of Medicine·L W RileyM L Cohen
Jul 22, 1997·International Journal of Food Microbiology·J L BrownP D Nichols
Apr 1, 1999·International Journal of Food Microbiology·M K MiettinenH J Korkeala
Feb 7, 2003·Applied and Environmental Microbiology·Live L NesseGudmund Holstad
Apr 20, 2005·Journal of Applied Microbiology·A P WilliamsD L Jones
Oct 29, 2005·International Journal of Food Microbiology·S A WilksC W Keevil
Aug 26, 2006·Journal of Veterinary Medicine. B, Infectious Diseases and Veterinary Public Health·L Beutin
Oct 31, 2007·PLoS Pathogens·Paul Schmid-Hempel, Steven A Frank
Dec 2, 2008·Environmental Microbiology·Marcus C de GoffauHermie J M Harmsen
Feb 5, 2009·Journal of Applied Microbiology·T MøretrøS Langsrud

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Citations

Jun 21, 2011·Applied and Environmental Microbiology·Tone Mari RodeTrine M L'abée-Lund
Oct 23, 2012·Applied and Environmental Microbiology·Stéphane D MiszczychaDelphine Thevenot-Sergentet
Jan 25, 2016·International Journal of Food Microbiology·Catherine M BurgessOdile Tresse
Aug 22, 2012·Veterinary Microbiology·Greetje A A CastelijnTjakko Abee
Mar 16, 2011·International Journal of Food Microbiology·Trond MøretrøSolveig Langsrud
Apr 16, 2015·Critical Reviews in Food Science and Nutrition·Elisabetta LambertiniAbani K Pradhan
Mar 20, 2014·The Science of the Total Environment·Atin AdhikariTiina Reponen
Jun 28, 2016·Environmental Monitoring and Assessment·Patricia L Marucci, María A Cubitto
Mar 23, 2019·International Journal of Environmental Health Research·Mingxin LiuYanju Li
Oct 17, 2020·Journal of Applied Microbiology·Annemarie GrundArne Jung

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