A sign is posted in the window of Chipotle Mexican Grill in Bowie, Maryland, advising customers they will be closed for a company wide meeting on February 8, 2016. Chipotle, the fast-casual Mexican food chain, is closed until 3 (EST)February 8 for a company-wide safety briefing after outbreaks of norovirus and E.coli sickened customers. / AFP / JIM WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)
