Happy Thursday, February 27, 2025. Here’s a roundup of today’s essential food safety stories. Let’s get into the news.

What to know: The Food and Drug Administration continues to investigate four foodborne illness outbreaks, two from Salmonella and two from Listeria monocytogenes.

For an outbreak of Salmonella Newport, the number of patients stands at 29, up two from this past week. The FDA has not reported how old the patients are or where they live. The agency has initiated traceback but has not reported what food is being traced. The FDA first posted the outbreak on Feb. 20.

Only two people reported eating raw milk cheese in the initial stages of an E. coli outbreak investigation that was later traced to such a product. It is unclear whether this was because of poor recall or because people were unaware they had consumed unpasteurized cheese.

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What to know: The World Health Organization (WHO) has published a series of documents covering the relevance of a range of pathogens in water.

The background documents will inform the revision of WHO guidelines for drinking water quality and on sanitation and health. Examples of agents covered are Cyclospora, Salmonella, Toxoplasma gondii, Yersinia enterocolitica, Hepatitis A and E, Cryptosporidium, and Shigella.