The conversation between human and AI assistant.
[|Human|] Given a reference text about Listeriosis, tell me how how the bacterium is transfered into animals, and people.
[|AI|] Listeriosis is most often associated with animals but can also infect people and is primarily transferred by ingestion.
[|Human|] 
Given a reference text about Listeriosis, tell me how how the bacterium is transfered into animals, and people.