Several major fast-food chains have removed fresh onions from their menus after an E. coli outbreak linked to McDonald’s Quarter Pounder sandwiches sickened dozens of people across the US, Al Jazeera reports.
The move comes as the Centers for Disease Control and Prevention (CDC) confirmed an investigation into the outbreak, which has affected at least 49 people in 10 states, with one fatality reported in an older adult. The outbreak strain, E. coli O157:H7, is a particularly dangerous strain known for causing severe food poisoning.
McDonald’s, having identified Taylor Farms in Salinas, California, as the supplier of the contaminated onions, pulled the Quarter Pounder from approximately 20% of its US outlets. The company is cooperating with the CDC investigation and taking steps to ensure the safety of its products.
Burger King’s parent company, Restaurant Brands International, and Yum Brands, which operates Taco Bell, Pizza Hut, and KFC, have all announced the removal of fresh onions from their restaurants as a precautionary measure. Illegal Pete’s, a Colorado-based Mexican fast-food chain, has also temporarily removed menu items containing onions.
Taylor Farms has not yet responded to requests for comment regarding the outbreak.
E. coli poisoning symptoms can appear within one to two days of consuming contaminated food. These symptoms typically include fever, vomiting, diarrhea, and signs of dehydration. While most individuals recover from E. coli poisoning, it can be particularly dangerous for young children, the elderly, pregnant women, and individuals with compromised immune systems.
