Hi
I came upon a website that you may find useful, the article in question that I found was a study from the University of Florida ranking the risk of food pathogens with food types.
http://www.epi.ufl.edu/?q=RankingTheRisks
You can download the report at the above link.
It may be also worth a look at the rest of the site which has some interesting articles on food safety with articles on Salmonella, Vibrio and E coli. Although USA based you may find it interesting
FoodWorld 