An outbreak of the bacteria Escherichia coli (E. coli) tied to McDonald’s has left one person dead, 49 others ill, and 10 hospitalized across the western United States. The Centers for Disease Control and Prevention (CDC) confirmed that the outbreak has affected 10 states, with the majority of cases reported in Colorado and Nebraska.
The news sent McDonald’s stock tumbling by more than 8% after the close of trading on the New York Stock Exchange.
According to the CDC, all those infected reported having eaten at McDonald’s before falling ill, with most specifically mentioning the “Quarter Pounder” burger as the common factor. Although the exact source of the contamination has not yet been identified, ground beef and onions are suspected. As a precaution, McDonald’s has pulled these ingredients from its menu in the affected states while an investigation is underway.
“Food safety is extremely important to me and to everyone at McDonald’s,” said Joe Erlinger, President of McDonald’s USA, in a video statement. “We have taken proactive measures to remove the sliced onions used in the ‘Quarter Pounders’ from certain states, and we’ve also decided to temporarily remove that specific burger from restaurants in the impacted areas.”
The E. coli bacteria can cause severe symptoms including cramps, diarrhea, and vomiting, which typically last three to four days. While most people recover without treatment, some can experience serious complications.
As the investigation continues, McDonald’s is working closely with health authorities to prevent further illnesses, and the company has urged customers to be cautious if they have eaten the affected items recently.
