FDA Updates Listeria Outbreak Investigation: Cases in Outbreak Ref #1417 Rise to 50, Product Still Not Identified
The U.S. Food and Drug Administration (FDA) updated its foodborne illness outbreak investigation table on October 28: the case count for the Listeria monocytogenes outbreak listed as reference #1417 has increased from 46 to 50, the food product linked to the illnesses has not yet been identified, and the investigation remains active and ongoing.
According to the FDA table, the outbreak was first posted on September 23, 2026, and no recall has been initiated. FDA has initiated traceback, on-site inspection, and sampling work for this outbreak to identify the source of contamination.
FDA says people who think they have symptoms of foodborne illness should talk to their healthcare provider and public health officials and provide details of what they ate before becoming sick, which often helps solve emerging or ongoing outbreaks. The agency notes that investigations that do not result in specific, actionable steps for consumers may or may not conclusively identify a source or contributing factors.
Source: GSM · USA (original Chinese edition)
Photo: 单核细胞增生李斯特菌显微图像（资料图）。美国疾病控制与预防中心（CDC）摄，公共领域，经 Wikimedia Commons。 / Listeria monocytogenes under the microscope (file photo). Photo by the U.S. Centers for Disease Control and Prevention (CDC), public domain, via Wikimedia Commons.
