When People Got Sick: Listeria outbreak, Enoki Mushrooms - November 2022

Key points

  • Although this outbreak investigation has ended, CDC and FDA are working to better understand the risk of Listeria infection from enoki mushrooms.
  • Listeria is especially harmful for people who are pregnant, aged 65 or older, or have a weakened immune system.
  • If you are in any of these groups, do not eat any raw enoki mushrooms.
enoki mushrooms
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When people got sick

This chart shows when the five people in this Listeria outbreak got sick.

The true number of sick people in this outbreak is also likely higher than the number reported. This is because some people recover without medical care and are not tested for Listeria.

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Content Source:
National Center for Emerging and Zoonotic Infectious Diseases (NCEZID); Division of Foodborne, Waterborne, and Environmental Diseases