: At least 75 people fell ill from the bacterial infection and one person died in Colorado from a strain of E. coli, the Centers for Disease Control and Prevention said Friday. McDonald’s attributed the illnesses to slivered onions,

Big-name fast food chains, including Taco Bell, KFC, Pizza Hut, and Burger King, are reportedly pulling onions off their menus in certain locations amid a deadly, multistate outbreak of E. coli O157:H7 linked to McDonald's Quarter Pounders.

A California-based produce company was the source of fresh onions linked to a deadly E. coli food poisoning outbreak at McDonald’s, officials with the restaurant chain said Thursday. Meanwhile, other fast-food restaurants — including Taco Bell, Pizza Hut, KFC and Burger King — pulled onions from some menus.