Lou, listeriosis, although serious is very very rare. The leaflet is very daunting I know ... probably because the health authorities want people to be very aware of the issue and are just covering all bases. You are right that many people ate a lot of those things on the list in the past and didn't have problems. The list is really only there to make people aware of the types of foods listeria prefers ... not saying that those foods definitely contain listeria. Try not to worry about it too much (although it is easy for me to say, I know).