<ul>
<li>To estimate the number and/or proportion of human infections attributable to various food sources using four different approaches: microbial subtyping, risk (exposure) assessment, analytical epidemiology, and outbreak investigations. Salmonella and Campylobacter are selected as model organisms.</li>
<li>To compare and discuss the results obtained with the four different approaches.</li>
<li>To make recommendations on which approach may best answer different questions</li>
<li>To make recommendations on how the results can be used for prioritizing the targeting of sources to control</li>
</ul>
An initial workpackage meeting was held in July 2006. At this meeting the general concepts, including definitions to be applied, were discussed and progress on the harmonization regarding terminology on attribution was achieved. It was for instance agreed that it is more appropriate to name the concept "human illness attribution" instead of "source attribution". <P>
Juxtaposition to the workpackage meeting an EU-US conference on Priority Setting of Foodborne and Zoonotic Pathogens was organized jointly between Workpackages 28 and 23 (Prioritizing foodborne and zoonotic hazards at the EU level) and the US Food Safety Research Consortium. Over a hundred risk researchers, microbiologists, economists and other leading experts in the field of food-borne zoonoses shared information on tools and approaches for identifying priority areas that will help to shape future public health policy.
<P>