The FDA has identified imported enoki mushrooms distributed by Utopia Foods, Inc. of Glendale, N.Y., as a likely source of illnesses in this outbreak.

In 2019, the World Food Programme (WPF), a United Nations humanitarian organization, distributed food to very needy people in Uganda. In March 2019, a major food-poisoning incident occurred in one region of the country, followed by a second outbreak, which occurred in a refugee camp in a completely different area in Uganda. In the first outbreak five people died and hundreds were hospitalized.