We chose to use QMRA for the evaluation of the effect of the
implemented action plans, using the estimate of relative risk as a
comparative measure as opposed to only considering changes in
prevalence. Prevalence is frequently used to evaluate changes in contamination
status of food products, however, this may not be a good
indicator of the human health risk associated with the food considered
(Nauta and Havelaar, 2008; Nauta et al., 2008), as confirmed in
this study.