Timeline of Reported Cases

Final Update

Posted March 4, 2020 at 3:00 PM ET

This outbreak investigation is over, but recalled hard-boiled egg products could still be in refrigerators. If you have these products at home, don’t eat them. Visit the FDA websiteexternal icon for a full list of recalled products.

People infected with the outbreak strain of Listeria monocytogenes, by month of isolation*

Epi curve of people infected with the outbreak strain of Listeria, by month of illness onset, as of March 4, 2020.

*n=8 for whom information was reported as of March 4, 2020.

Previous Timelines

People infected with the outbreak strain of Listeria monocytogenes, by month of isolation*

Epi curve of people infected with the outbreak strain of Listeria, by month of illness onset, as of December 12, 2019.

*n=7 for whom information was reported as of December 17, 2019.

Illnesses might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported.

Read the Full Food Safety Alert

Page last reviewed: March 4, 2020

Content source: Centers for Disease Control and Prevention, National Center for Emerging and Zoonotic Infectious Diseases (NCEZID), Division of Foodborne, Waterborne, and Environmental Diseases (DFWED)