The fraction of human salmonellosis cases attributable to Salmonella in pigs and pig meat will vary considerably between MSs and will mainly depend on i) the Salmonella occurrence (prevalence and numbers) in pigs and pig meat, ii) consumption patterns and preferences and iii) the relative importance of other Salmonella sources. From the descriptive and comparable analysis of the serovar distribution in animal sources and humans, a cautious assessment would be that around 10-20% of human Salmonella infections in EU may be attributable to the pig reservoir as a whole.
http://www.efsa.europa.eu/en/scdocs/scdoc/1547.htm