The Food Standards Agency has said several suppliers to major retailers are taking the precautionary measure of recalling various sandwiches, wraps and salads in response to findings from investigations into an ongoing E coli outbreak.

Greencore, which supplies supermarkets including Asda, Morrisons and Sainsbury’s, is recalling 45 products, while Samworth Brothers Manton Wood, which supplies Tesco and One Stop, is recalling 15.

Shoppers who have bought any of the affected products are advised not to eat them and to return them to a store for a full refund.