McDonald’s Quarter Pounder Tied to E. Coli Outbreak Across 10 States

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McDonald’s has been linked to a deadly e. coli outbreak. Here’s what you need to know!

McDonalds Quarter Pounder on table

The golden arches are in hot water. McDonald’s has been linked to an e.coli outbreak that has sickened 49 people and killed one.

Those who fell ill reported eating at McDonald’s beforehand with several mentioning Quarter Pounder hamburgers. These incidents occurred across 10 states: Colorado, Iowa, Kansas, Missouri, Montana, Nebraska, Oregon, Utah, Wisconsin, and Wyoming.

Though no specific ingredient has been named as the official source of the e.coli, investigators believe that slivered onions may be at the root of the issue. As a result, McDonald’s has halted the use of the onions in those areas and some locations have removed the Quarter Pounder from the menu until more information has been gathered.

McDonald’s issued a notice to patrons assuring diners that the restaurant deeply cares about customers and is taking necessary measures to ensure their safety.

a nurse wearing a stethoscope

What to know about e.coli:

The CDC recommends to contact a doctor if you feel the following:

  • Diarrhea for more than 3 days and a fever of 102 degrees or more
  • Vomiting to the point you cannot keep liquids down
  • Have signs of dehydration like dry mouth, dry throat, less urination, or feeling dizzy when standing up

Symptoms may come on 3-4 days after coming in contact with the bacteria. For many people, symptoms will clear within a week without treatment.


Skip MickeyD’s this week and try these other cheap eats!


About the writer:

Kara is a writer and photographer from the Midwest. Her creative work has appeared in various publications over the past decade. With a background in finance, she loves to be money-savvy.


Join The Discussion

Comments 4

  1. Sue

    Looks like the works of the hamburgular to me

  2. Trineke

    It’s due to both the onions and the beef, and more states were added to the list today.

  3. Danelle

    Oh no, my husband had one on Sunday for lunch and on Monday he was so sick. He’s feeling better now but we live in OR so his could have been affected

    • Jessica (Hip Sidekick)

      Sorry to hear your husband wasn’t feeling well earlier this week, Danelle. Hoping he’s on the mend now. 🤞❤️

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