McDonald's investors will look for signs of near-term sales disruption from the recent E. coli outbreak linked to its Quarter Pounder hamburgers when it reports third-quarter results on Tuesday.

At the end of July, McDonald’s reported second-quarter sales fell 0.7% in the US compared with a year earlier, while some rivals gained — a sign that McDonald’s had become t

US fast-food chain McDonald's is to resume selling its Quarter Pounder beefburgers following an outbreak of E coli in several states attributed to sliced onion served with the burgers. McDonald's said in a statement issued on Sunday that it had stopped distributing the beef patties,