News, Reuters McDonald’s US head vows to improve safety after E. coli outbreak, more cases expected By Ananya Mariam Rajesh, Reuters, Waylon Cunningham October 24, 2024 McDonald's scrambled on Wednesday to contain the damage from an E. coli outbreak linked to Quarter Pounder burgers that has killed one person and sickened nearly 50 others, as it pulled the menu item from restaurants across a dozen U.S. states.