Federal officials are investigating a new outbreak of infections from Listeria monocytogenes.

According to the Food and Administration, three confirmed patients were present as of Aug. 21. An outbreak is declared when two or more patients are infected with the same strain of a pathogen.

The FDA has initiated traceback efforts, but the agency has not reported what food or foods are being traced, the ages of the patients, or where they live.

In other outbreak news, the FDA reports that an outbreak of Salmonella Irumu has ended. The agency first reported the outbreak on July 10. The FDA, working with the Centers for Disease Control and Prevention and state health and agriculture departments, determined that fresh mangoes were the source of the illnesses.

“. . . investigators were unable to determine a specific source of contamination while the outbreak was considered ongoing. This outbreak is over. All products have passed shelf life and are no longer on the market. There is no ongoing risk to public health,” according to the FDA’s outbreak update.

Other outbreak updates
In the past week, the number of patients who have been in an outbreak of illnesses from the Cyclospora cayetanensis parasite has increased from 21 to 35
. The FDA has initiated an inspection of a facility and product sampling but has not reported what facility or food is being tested.

The FDA first reported the outbreak on August 7. The agency has not reported the patients’ ages or places of residence.

In another outbreak of infections from the Cyclospora cayetanensis parasite, the FDA initiated sampling but has not reported what food is being tested.

In an outbreak of Salmonella Newport infection, the FDA reports that the patient count has increased from three to four in the past week. The agency has initiated an inspection but is not yet reporting what facility is being inspected or what food may be involved.

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