What we know about the McDonald's E. coli outbreak investigation

### McDonald's Quarter Pounders Linked to E. coli Outbreak

An E. coli outbreak has been linked to McDonald's Quarter Pounders, causing sickness among consumers. While the exact source has not been confirmed, McDonald's has removed Quarter Pounders from menus in several states. Affected areas include Colorado, Kansas, Utah, and Wyoming, among others. The onions and beef patties used specifically for these sandwiches have been discontinued in these regions.

The outbreak has resulted in multiple hospitalizations, including severe cases like hemolytic uremic syndrome, with most cases reported in Colorado and Nebraska. Symptoms of E. coli infection include severe stomach cramps, diarrhea, fever, and vomiting. While most recover without treatment, serious complications can occur, particularly in vulnerable populations.

The investigation into this outbreak is ongoing, with new cases expected to emerge. McDonald's has implemented temporary menu changes to prevent further spread and insists on maintaining customer safety as a priority. The corporate statement emphasized confidence in the safety of other menu items.

Foodborne illnesses, including E. coli, have seen a notable rise, highlighting the importance of food safety measures. Despite challenges, efforts to identify and remove contaminated products from distribution continue to be critical in managing such outbreaks.