As of October 25, 75 people infected with the outbreak strain of E. coli O157:H7 have been reported from 13 states. 

Colorado – 26
Iowa – 1
Kansas – 1
Michigan – 2
Missouri – 4
Montana – 13
Nebraska – 11
New Mexico – 5
Oregon – 1
Utah – 5
Washington – 1
Wisconsin – 1
Wyoming – 4

*Note, several of the illnesses resulted from travel to Colorand.

Illnesses started on dates ranging from Sept 27, 2024, to October 10, 2024. Of 61 people with information available, 22 have been hospitalized, and 2 people developed hemolytic uremic syndrome, a serious condition that can cause kidney failure. One death has been reported from an older adult in Colorado. Of the 42 people interviewed, all 42 (100%) report eating at McDonald’s, and 39 people report eating a beef hamburger.

The FDA, USDA FSIS, CDC, and state partners continue to work quickly and collaboratively to investigate and identify the source of illnesses linked to E. colicontamination in McDonald’s Quarter Pounders.  

FDA is using all available tools to confirm if onions are the source of this outbreak. This includes working with federal and state partners and the companies involved to collect and evaluate records and distribution information as part of our traceback investigation. FDA and state partners are also collecting onion samples for analysis.

While the investigation is ongoing, Taylor Farms, the supplier of slivered onions for the affected McDonald’s locations, has initiated a voluntary recall. Recalled yellow onions were sold to additional food service customers. Customers who received recalled onions have been directly notified of the recall.

William “Bill” Marler has been a food safety lawyer and advocate since the 1993 Jack-in-the-Box E. coli Outbreak which was chronicled in the book, “Poisoned” and in the recent Emmy Award winning Netflix documentary by the same name. Bill work has been profiled in the New Yorker, “A Bug in the System;” the Seattle Times, “30 years after the deadly E. coli outbreak, A Seattle attorney still fights for food safety;” the Washington Post, “He helped make burgers safer, Now he is fighting food poisoning again;” and several others

Dozens of times a year Bill speaks to industry and government throughout the United States, Canada, Europe, Africa, China and Australia on why it is important to prevent foodborne illnesses.  He is also a frequent commentator on food litigation and food safety on Marler Blog. Bill is also the publisher of Food Safety News.

E. coli:  Marler Clark, The Food Safety Law Firm, is the nation’s leading law firm representing victims of E. coli outbreaks and hemolytic uremic syndrome (HUS). The E. coli lawyers of Marler Clark have represented thousands of victims of E. coli and other foodborne illness infections and have recovered over $900 million for clients. Marler Clark is the only law firm in the nation with a practice focused exclusively on foodborne illness litigation.  Our E. coli lawyers have litigated E. coli and HUS cases stemming from outbreaks traced to ground beef, raw milk, lettuce, spinach, sprouts, and other food products.  The law firm has brought E. coli lawsuits against such companies as Jack in the Box, Dole, ConAgra, Cargill, and Jimmy John’s.  We have proudly represented such victims as Brianne KinerStephanie Smith and Linda Rivera.

If you or a family member became ill with an E. coli infection or HUS after consuming food and you’re interested in pursuing a legal claim, contact the Marler Clark E. coli attorneys for a free case evaluation.

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