When People Got Sick: Listeria Outbreak, June 2026

For Everyone

Key points

This outbreak is over. If you are pregnant, 65 or older, or have a weakened immune system, you may be at higher risk of getting sick with Listeria. Choosing cheeses made with pasteurized milk or heating cheese to 165 °F or steaming hot can help protect yourself from getting sick.

Soft Ricotta with Jalapeños in clear, plastic container

When people got sick

This chart shows when the 15 people in this Listeria outbreak got sick.

The true number of sick people in this outbreak was 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
About This Page
Published: June 4, 2026
Updated: August 26, 2026

This page was last updated on this date. Updates may include minor edits, image changes, or other modifications to page content.

Reviewed: August 26, 2026

The information on this page was last reviewed by subject matter experts to ensure accuracy.