Journal article
Traditional Salmonella Typhimurium typing tools (phage typing and MLVA) are sufficient to resolve well-defined outbreak events only
Helen Kathleen Crabb, Joanne Lee Allen, Joanne Maree Devlin, Simon Matthew Firestone, Mark Stevenson, Colin Reginald Wilks, James Rudkin Gilkerson
FOOD MICROBIOLOGY | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD | Published : 2019
Abstract
Between 1991 and 2014 the per capita notification rate of salmonellosis in Australia increased from 31.9 to 69.7 cases per 100,000 people. Salmonella Typhimurium accounted for nearly half the human cases until the end of 2014. In this study, we used cluster analysis tools to compare S. Typhimurium isolates from a chicken-meat study with those reported to the National Enteric Pathogen Surveillance System (NEPSS) from the coincident human and non-human populations. There was limited phage type diversity within all populations and a lack of specificity of MLVA profiling within phage types. The chicken-meat study isolates were not significantly clustered with the human cases and at least 7 non-h..
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Funding Acknowledgements
The authors would like to acknowledge the support of the producers and farm managers without whom this study could not have been conducted. We also acknowledge the support of the typing laboratory (Microbiological Diagnostic Unit, Victoria) for their assistance in serotyping and MLVA profiling of the chicken meat study isolates and Joan Powling for her assistance in providing the human and non-human surveillance data for this study. H. Crabb was funded by a Postgraduate Training Award and this project was supported by funding from the Cybec Foundation.