If I have got this right, it seems from this Guardian article that because the UK has repeatedly delayed implementing the expected border checks since Brexit, we have been allowing salmonella infected poultry products in from Poland for a number of years. Not exactly a good look, is it? I presume these products have been going into "manufactured" food items, not sold as fresh.
https://www.theguardian.com/politics/20 ... chicken-uk
It would be interesting to know what sort of checks went on prior to Brexit.