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 hospital in Yorkshire and Humberside with an underlying health condition. The man had eaten sandwiches made by the company while in the hospital at least 12 times in the three weeks prior to illness.
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