McDonald's will resume selling Quarter Pounder hamburgers in all restaurants this week, as it was informed results of testing showed no detection of E.coli in the beef patties, the U.S. fast-food giant said.

All contaminated products related to the E. coli outbreak that sickened 75 people across 13 states, with one reported fatality, are now fully out of McDonald's restaurants, the company said in a statement Sunday.

The Quarter Pounder is back on the menu after testing showed no signs of E. coli. But the popular burger won’t feature the slivered onions, as they’re the likely source of the outbreak in multiple states that sickened at least 75 people, McDonald’s said Sunday.