Researchers have suggested opportunities are being missed to prevent listeriosis from pre-packed sandwiches.
Eating pre-prepared sandwiches served in hospitals was the most common source of Listeria infections in England and Wales between 1981 and 20
The factory of a sandwich producer in England linked to an illness was contaminated by Listeria for almost three years, a report into the incident has found.
In July 2017, Listeria monocytogenes was isolated from the blood of a 53-year-old in a hospi
