L. monocytogenes. can contaminate a range of foods, including raw and ready to eat meat, fruits, vegetables and seafood. It can grow at low temperatures and can survive for extended periods of time in food products and processing plants which can make it difficult to control
An estimated 1,600 people get listeriosis each year, and about 260 die. The infection is most likely to sicken pregnant women and their newborns, adults aged 65 or older, and people with weakened immune systems.