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February 3, 2022

Update on Dec. 2021 Packaged Salad Listeria Outbreak Investigation

The U.S. Food and Drug Administration (FDA), along with the Centers for Disease Control (CDC) and state and local partners, is investigating a multistate outbreak of Listeria monocytogenes infections linked to packaged leafy greens.

On January 7, 2022, as a result of continued investigations, the producer issued a voluntary recall of additional products after detecting the presence of Listeria monocytogenes on equipment used in the harvesting of the raw iceberg lettuce also used in finished products processed in its Springfield, OH, and Soledad, CA, facilities. These products were shipped throughout the United States and several provinces in Canada. FDA analyzed the positive sample collected, and the results from FDA’s whole genome sequencing analysis showed that the strain of Listeria monocytogenes found on the harvesting equipment matches the strain causing illnesses in this outbreak.

All recalled products are now past their “Best if Used By” dates of November 30, 2021, to January 9, 2022.

For more information, read FDA’s outbreak investigation update: https://www.fda.gov/food/outbreaks-foodborne-illness/outbreak-investigation-listeria-monocytogenes-dole-packaged-salad-december-2021