The multistate Listeria outbreak linked to Clover Hill Dairy soft cheese has grown again.
As of June 24, 2026, the CDC and FDA have confirmed 12 people infected with the outbreak strain of Listeria monocytogenes across four states — a net increase of three cases since the previous update on June 18. Illinois is a newly confirmed state, expanding the outbreak's geographic reach beyond the previously affected three states of Maryland, New York, and Virginia.
