FDA continues outbreak investigations

The Food and Drug Administration has moved forward with one investigation into a salmonella outbreak and declared another over.

For a Salmonella Richmond outbreak that sickened 11 people, the FDA began an on-site inspection and sample testing, but does not release information about where it is inspected or what is sampled. The agency has already launched tracing efforts, but has not said which foods it is tracking.

The FDA also has not released any information about the patients, including their age or where they live. The agency first reported the outbreak on October 16.

There are likely many more sick people in the outbreak than are on the list of confirmed patients. This is because some people do not seek medical attention and many do not have specific tests for salmonella. The Centers for Disease Control and Prevention estimates that for every patient confirmed in a salmonella outbreak, 29 are undocumented.

For an outbreak of Salmonella Lomalinda infections, the FDA announces that it has closed its investigation. There were 40 confirmed patients in the outbreak. The FDA did not disclose the ages of the patients or where they lived.

The agency conducted research, on-site inspections and sample testing, but provided no specific details about those efforts. It is still unclear what caused the outbreak. The FDA first reported the outbreak on September 1.

Ongoing outbreaks and investigations

For a Listeria outbreak infections, the FDA continues to investigate various brands of ready-to-eat pasta.

As of September 25, a total of 20 people infected with the outbreak strain of Listeria have been reported in 15 states. Nineteen patients were hospitalized and five of them died. The FDA first reported the outbreak on April 9. The agency has not updated information on the outbreak since October 7.

Recalled products linked to the outbreak include:

• Sprouts Farmers Market Smoked Mozzarella Pasta Salad – use by dates 10/10/25 – 10/29/25 (Sprouts Farmers Market recall)
• Giant Eagle Smoked Mozzarella Pasta Salad – Best before dates 09/30/25 – 10/7/25 (Giant Eagle recall)
• Kroger Stores Recalled Bowtie and Penne Deli Salads – Sold AUG 29, 2025 – OCT 2, 2025 (Kroger Recall)
• Scott & Jon’s Shrimp Scampi with Linguini Bowls 9.6 oz – best if used by dates of 03/12/2027, 03/13/2027, 03/17/2027, 03/21/2027 (Demers Food Group recall)
• Trader Joe’s Cajun Style Blackened Chicken Breast Fettuccine Alfredo, in 16 oz plastic tubs with expiration dates if used by 09/20/2025, 09/24/2025, 09/27/2025, 09/28/2025, 10/01/2025, 10/03/2025, 10/05/2025, 08/10/2025 or 10/10/2025 (USDA FSIS Public Health Alert)
• Albertsons stores recalled store-made deli pasta salads – sell-by dates SEPTEMBER 8, 2025 – OCT 4-25 (Albertsons recall)
• Market Linguine with Beef Meatballs and Marinara Sauce 12 oz. – preferable if used before September 22, 2025; September 24, 2025; SEPTEMBER 25, 2025; September 29, 2025; SEPTEMBER 30, 2025; and October 1, 2025 (USDA FSIS Public Health Alert)
• Grilled Chicken Alfredo with Fettuccine 12.3 oz – best before date of June 26, 2025 or before; and 32.8 ounces – expiration date on or before June 27, 2025 (FreshRealm recall)
• Home Chef Chicken Fettuccine Alfredo 12.5 oz – best before date of June 19, 2025 or before (FreshRealm recall)

For an outbreak of Listeria monocytogenes, the number of patients remains stable at eight. The FDA did not find the source of the pathogen, but began an on-site inspection and sample testing. The agency does not specify where it is inspecting or what is being sampled. The agency has already launched traceability efforts, but has not said which foods are traced. The FDA first reported the outbreak on September 17.

For an outbreak of Listeria monocytogenes infections, the number of patients remained stable at 26. The FDA did not indicate the ages of the patients or their location. The source of the pathogen has not been determined. The agency has started tracing but has not indicated which foods are being traced. The FDA first reported the outbreak on September 4.

For an outbreak of Salmonella Enteritidis infections, the number of patients remained stable at 45. The FDA did not say how old the patients are or where they live. No source of the pathogen has been identified. The FDA began its tracing efforts, but did not indicate which foods it was tracing. The agency has also begun on-site inspections and sample testing, but has not said which location is being inspected or what it is testing. The FDA first reported the outbreak on August 27.

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