The Food Standards Agency (FSA) said it was thought that lettuce used in the products was the likely source of the outbreak.
All confirmed cases began experiencing symptoms before June 4, the UKHSA said.
Amy Douglas, Incident Director at UKHSA, said: “We’re pleased that fewer cases have been reported, however we still expect to see a few more cases linked to this outbreak as further samples are referred to us for testing.
“Symptoms of infections with STEC include severe and sometimes bloody diarrhoea, stomach cramps, vomiting and fever. While diarrhoea and vomiting can have a range of causes, there are simple steps you can take to reduce your risk and the risk of infecting others.”
Ms Douglas advised anyone with the infection to wash their hands with soap and warm water and to use disinfectants to prevent it spreading.
A full list of the products recalled was released at the time.
Full list of recalled products:
Aldi
Chicken Fajita Triple Wrap - Use by All dates up to and including 16 June 2024
by Amazon
BLT Sandwich - Use by All dates up to and including 16 June 2024
Chicken & Bacon Layered Salad - Use by All dates up to and including 16 June 2024
Chicken Salad Sandwich - Use by All dates up to and including 16 June 2024
Ploughman's Sandwich - Use by All dates up to and including 16 June 2024
Prawn Layered Salad - Use by All dates up to and including 16 June 2024
Asda
Smoky Beans and Cheddar Cheese Wrap - Use by All dates up to and including 15 June 2024
Chicken Salad (Sandwich) - Use by All dates up to and including 15 June 2024
Chicken & Bacon Club (Sandwich) - Use by All dates up to and including 15 June 2024
Brie, Bacon and Chilli Chutney (Sandwich) - Use by All dates up to and including 15 June 2024
BLT (Sandwich) - Use by All dates up to and including 16 June 2024
Vegan No Chick'n Caesar Wrap - Use by All dates up to and including 15 June 2024
Tuna Crunch Sub Roll - Use by All dates up to and including 15 June 2024
Southern Fried Chicken Wrap - Use by All dates up to and including 15 June 2024
Southern Fried Chicken Triple Wrap - Use by All dates up to and including 15 June 2024
Boots
BBQ Chicken wrap - Use by All dates up to and including 16 June 2024
BLT (Sandwich) - Use by All dates up to and including 16 June 2024
Cheddar Cheese Ploughman's (Sandwich) - Use by All dates up to and including 16 June 2024
Chicken & Bacon Caesar Wrap - Use by All dates up to and including 16 June 2024
Chicken Salad (Sandwich) - Use by All dates up to and including 16 June 2024
Chicken Triple (Sandwich) - Use by All dates up to and including 16 June 2024
Delicious Ham & Cheese Ploughman's (Sandwich) - Use by All dates up to and including 16 June 2024
Halloumi & Greek Style Salad wrap - Use by All dates up to and including 16 June 2024
Ham & Egg Club (Sandwich) - Use by All dates up to and including 16 June 2024
Mixed Triple (Sandwich) - Use by All dates up to and including 16 June 2024
Southern Fried Chicken Wrap - Use by All dates up to and including 16 June 2024
Spicy Bean & Cheese Wrap - Use by All dates up to and including 16 June 2024
Vegan No Chicken Salad (Sandwich) - Use by All dates up to and including 16 June 2024
Vegan No Duck & Hoisin Wrap - Use by All dates up to and including 16 June 2024
Veggie Triple (Sandwich) - Use by All dates up to and including 16 June 2024
Co-op
Vegan Gro Onion Bhaji (Sandwich) - Use by All dates up to and including 16 June 2024
Mexican Style Bean & Cheese Wrap - Use by All dates up to and including 16 June 2024
Ham, Cheese & Pickle (Sandwich) - Use by All dates up to and including 16 June 2024
Ham & Cheese Wrap - Use by All dates up to and including 16 June 2024
Chicken & Bacon Caesar Wrap - Use by All dates up to and including 17 June 2024
Bacon, Lettuce and Tomato (Sandwich) - Use by All dates up to and including 16 June 2024
Morrisons
Chicken Salad (Sandwich) - Use by All dates up to and including 16 June 2024
Chicken Salad PFS (Sandwich) - Use by All dates up to and including 16 June 2024
Gluten Free Chicken Salad (Sandwich) - Use by All dates up to and including 16 June 2024
Gluten Free Sandwich Platter - Use by All dates up to and including 16 June 2024
Sainsbury's
Peri Peri Chicken Wrap - Use by All dates up to and including 16 June 2024
BBQ Pulled Pork & Red Leicester (Sandwich) - Use by All dates up to and including 16 June 2024
Chicken, Bacon & Avocado Focaccia (Sandwich) - Use by All dates up to and including 16 June 2024
Greek Style Wrap - Use by All dates up to and including 16 June 2024
Jerk Halloumi Wrap - Use by All dates up to and including 16 June 2024