The NHS says where listeria is found, but then says the risk of contamination in the UK is low. I'm not sure why they have decided the risk is lower in pre-prepared sandwiches than pate.
Where is listeria found?
The listeria bacteria have been found in a range of chilled ?ready-to-eat? foods, including:
pre-packed sandwiches
pâté
butter
soft cheeses, such as Brie or Camembert or others with a similar rind
soft blue cheese
cooked sliced meats
smoked salmon
It advises that if you are concerned to avoid eating them.
I found this abstract where they tested a whole load of pate from different sources (supermarket and smaller outlets), pate sold in packaging and pate sold in slices. Evidence from this study shows that most of the pâté sold in England and Wales is not contaminated with L. monocytogenes, and we suggest that the main areas of concern are cross-contamination and the length of display of pâté sold from opened packs. Which more or less supports my inital thoughts, that deli pate is the main concern and tinned/packaged pates are almost certainly fine. Interesting that fish pates were worse than meat pates. I wouldn't have suspected that.
I've looked again and again for outbreaks of listeria caused by pate and can't find any. There are quite a few in the UK caused by contaminated sandwiches and a big outbreak (70 odd deaths) in the States caused by melons. I found one linked to cheese.
So why are the NHS picking on pate and smoked salmon when convenience sandwiches are actually poisoning people?