Definitions

1. noun

A genus of rod-shaped, Gram-positive, facultatively anaerobic, and motile or non-motile bacteria.

“The food factory was shut down due to contamination with Listeria from a batch of improperly stored cheese.”

2. noun

A disease caused by the bacteria Listeria monocytogenes, characterized by fever and sepsis.

“The patient contracted Listeria after eating a spoiled sandwich from a local deli.”