I posted this yesterday about Listera - in response as to whether we could eat ham because of the risk of listeria. Hope you find it useful/informative. As PP said... Listeria is extremely rare.
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Just to give you some facts about Listeria (the reason they suggest you avoid deli meats).
Lets put things in perspective..... In England & Wales, it is very rare and there are less than 200 cases per year. These are mainly associated with outbreaks linked to a single food source.
https://www.hpa.org.uk/Topics/Infecti...ports19832010/
There are nearly 60 million people in England and Wales (Go figure).
In comparison, there are between 50,000 - 60,000 cases of campylobacter (the main source of food poisioning - main cuplrit is chicken or meat that hasn't been cooked properly - think BBQ's & Takeaway Resturants)
https://www.hpa.org.uk/Topics/Infecti...a/campyDataEw/
You're far far more likely to get campylobacter than to ever get Listeria. It really is very rare. It is sensible to avoid cured meats (parma ham, salami etc) but straighforward ham, turkey or chicken is fine because - as i've already said - food hygeine regulations are so strict in the UK that they all have to be prepared in a certain way and pass strict guidlines to be on sale to the public.
Please don't worry about not eating cooked ham - it really is an extremely low risk food.