FDA Human Foods Program
The following is an update from FDA of concern to our subscribers.
Outbreak Investigation of Listeria monocytogenes: Soft Cheese (June 2026)
Do not eat, sell, or serve recalled cheeses; additional cheese types recalled. FDA’s investigation is ongoing.
June 15, 2026
The FDA and CDC, in collaboration with state and local partners, are investigating a multi-state, multi-year outbreak of Listeria monocytogenes infections linked to requeson, a soft cheese similar to ricotta, manufactured by Clover Hill Dairy, LLC of Mechanicsville, MD.
On June 14, 2026, The Maryland Department of Health announced an expanded consumer advisory for all cheese products made by Clover Hill Dairy, located in Mechanicsville, MD, due to possible Listeria monocytogenes contamination.
FDA is working with Maryland state partners and Clover Hill Dairy to initiate an expanded recall of all products made at the facility.
As part of this investigation, FDA and state partners collected and analyzed samples. To date, six product samples of requeson cheese have tested positive for Listeria monocytogenes and matched the outbreak strain. Additionally, one environmental sample, collected by Maryland state partners, tested positive for Listeria monocytogenes and matched the outbreak strain.
FDA’s investigation is ongoing, and this advisory will be updated with more information as it becomes available.
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