BBC:
McDonald’s has temporarily removed quarter pounders and fresh, slivered onions from the menu in about a fifth of its US stores due to an outbreak of deadly E. coli poisoning.
So far, the Centers for Disease Control and Prevention has recorded 49 cases of illness across 10 states. Ten cases resulted in patients being admitted to hospital and one person has died.
Most of the cases of E. coli, a type of bacteria that can cause serious stomach problems, were recorded in western and Midwest states, according to the CDC.
As health officials continue to investigate the source of the outbreak, other major food companies have also said they are withdrawing onions in the US.
