Microbiological risk assessment

microbial risk assessment, burden of disease, risk ranking, Escherichia coli, viruses, outbreaks, typing methods
First published in the EFSA Journal
30 June 2016
Approved
4 July 2016
Type
Special Issue
Abstract
Microbiological risk assessment is defined by the CODEX Alimentarius Commission as ‘a scientifically based process consisting of the following steps: (i) hazard identification; (ii) hazard characterisation; (iii) exposure assessment; and (iv) risk characterisation’. It is one of the components of microbiological risk analysis, which has the overall objective to minimise food-borne risks to consumers. It is a complex discipline that continues to evolve and challenges and new opportunities were discussed during the breakout session ‘Microbiological risk assessment’ held at the EFSA 2nd Scientific Conference ‘Shaping the Future of Food Safety, Together’ (Milan, Italy, 14–16 October 2015). Discussions focussed on the estimation of the global burden of food-borne disease, the prioritisation of microbiological risks taking into account uncertainty, the challenges in risk assessment when dealing with viruses, the contribution of typing methods to risk assessment and approaches to deal with uncertainty in risk assessment in emergency situations. It was concluded that the results of the global burden of food-borne disease study provide, for the first time, a comprehensive comparison of risks due to different hazards and this will be an important input to food safety strategies at the global, regional and national levels. Risk ranking methodologies are an important tool for priority setting. It is important to consider the underestimation (e.g. due to bias in reporting). Typing methods for microbial hazards inevitably impact on risk assessment and can have an important influence on the accuracy of source attribution studies. Due to their high genetic diversity and the limitations of current diagnostic methods, it is still challenging to obtain robust evidence for food-borne outbreaks caused by viruses and more research is needed on the use of whole genome sequencing in this area. The lessons learnt from the recent enterohaemorrhagic Escherichia coli (EHEC) outbreak in Germany include the need for more effective and timely connections within and between institutions as responses unfold.
Disclaimer
The views expressed in this publication are those of the authors and do not necessarily represent the official views or policies of EFSA or the other author institutions. EFSA assumes no responsibility or liability for any errors or inaccuracies that may appear.
Substances
Contact
editor-in-chief.efsajournal [at] efsa.europa.eu
doi
10.2903/j.efsa.2016.s0507
EFSA Journal 2016;14(S1):s0507
Alessandro Cassini, Steve Hathaway, Arie Havelaar, Marion Koopmans, Kostas Koutsoumanis, Winy Messens, Gordon Müller-Seitz, Birgit Nørrung, Valentina Rizzi and Flemming Scheutz