In November 2022 the CDC announced a multistate outbreak of Listeria monocytogenes infections linked to enoki mushrooms. Three outbreak cases were identified, one in Michigan, one in Nevada, and one in California. All three were hospitalized. No one died.

Sick people samples were collected between October 3, 2022 and October 8, 2022. Two outbreak cases reported eating enoki mushrooms at restaurants with menu items containing enoki mushrooms. One patient did not report eating enoki mushrooms but reported shopping at various Asian grocery stores.

The outbreak strain was previously found in one sample that FDA collected at import. On December 13, 2022, Utopia Foods recalled these enoki mushrooms. On January 13, 2023, Utopia Foods expanded their recall of enoki mushrooms.