where Xend (log10 cfu/g) is the log10 of the concentration of
L. monocytogenes in the CSS at the end of the storage. The final output
of the model was R, the mean risk of invasive listeriosis per serving
of contaminated CSS in the susceptible population. R was evaluated
through a Monte-Carlo simulation framework using n ¼ 1,000,000
iterations. From the doseeresponse model, R was then evaluated: