McDonald’s (MCD) stock is slightly higher in Tuesday trading after the fast food giant beat revenue and net income expectations for its third quarter, although gains were limited as concerns regarding an outbreak of E. coli persist.

During the quarter ended September 30McDonald’s revenue increased 2.7% year-over-year to $6.9 billion, driven by a 0.3% increase in U.S. same-store sales. Globally, same-store sales fell 1.5%. At the same time, earnings per share (EPS) rose 1.3% year-over-year to $3.23.