Chipotle E. coli outbreak (2015)
An E. coli outbreak linked to Chipotle sickened customers across multiple states. The chain closed dozens of restaurants in the Pacific Northwest before tracing the source.
Sales plunged and the chain shut locations for deep cleaning.
Chipotle overhauled its food-safety protocols and retrained staff before reopening.
Shows how a single health-linked event can decide a restaurant's future. The permit on file now is what lets inspectors catch problems early.
