Tuesday, October 14, 2025

McDonald’s Quarter Pounders Linked to Deadly E. coli Outbreak

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E. Coli Outbreak: McDonald’s Quarter Pounders Sold in the US Recalled Due to Possible Contamination

CDC Warns of Possible Contamination

McDonald’s Quarter Pounders sold at restaurants across the country may have been contaminated with Escherichia coli (E. coli), according to a warning from the Centers for Disease Control and Prevention (CDC). The agency has identified an outbreak of E. coli infections linked to the product, which may have exposed 49 people in 10 states.

Details of the Outbreak

The CDC reports that at least 49 people have contracted E. coli through this recent outbreak, with one person having passed away and 10 others hospitalized. The majority of cases have been reported in Nebraska (9) and Colorado (27), with a few cases also identified in eight other states.

Investigation Ongoing

The CDC and McDonald’s are still working to determine which ingredient is contaminated and responsible for the outbreak. The CDC states that McDonald’s has stopped using fresh slivered onions and quarter-pound beef patties in several states while the investigation is ongoing to identify the contaminated ingredient.

Symptoms of E. coli Infection

E. coli infection can cause severe stomach cramps, bloody diarrhea, and vomiting. In some cases, it can produce a potentially deadly "Shiga toxin," which can lead to serious kidney problems requiring hospitalization. Symptoms typically begin within three to four days of consuming contaminated food. While most people recover without treatment after about a week, E. coli can cause more severe health issues.

Action Being Taken

McDonald’s has removed Quarter Pounders from select state menus while the investigation continues. The CDC is also working to determine if the contaminated ingredients were sent to any other restaurants or businesses.

Conclusion

In light of this outbreak, consumers are advised to remain vigilant about food safety. If you have recently consumed a McDonald’s Quarter Pounder, especially in the affected areas, it is crucial to monitor your health closely for any symptoms of E. coli infection. If you experience any signs of illness, contact your healthcare provider and report the incident to your local health department.

Frequently Asked Questions

Q: What ingredients may be contaminated?
A: The CDC and McDonald’s have yet to determine which specific ingredient is responsible for the outbreak.

Q: How many people have been affected?
A: At least 49 people have been infected, with 10 hospitalizations reported.

Q: What are the symptoms of E. coli infection?
A: E. coli can cause severe stomach cramps, bloody diarrhea, and vomiting, as well as more serious symptoms like a high fever, dehydration, and inability to keep liquids down.

Q: Can E. coli infection be treated?
A: Most people recover without treatment within a week, but in severe cases, hospitalization may be necessary to address kidney problems.

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