Chipotle E. coli outbreak (2015)
In late 2015, Chipotle Mexican Grill closed 43 restaurants in the Pacific Northwest after an E. coli outbreak sickened customers across nearly a dozen states. Sales and the stock price fell sharply as cases stretched over months.
Chipotle's sales dropped for several quarters as customers avoided the brand during the investigations.
The company centralized ingredient preparation and overhauled its food-safety protocols, making safety a public priority for the chain.
A gap in food-handling controls sickened people and hammered a national brand. Marina Bay's re-inspection flagged a missing employee health policy, the sort of control that stops illness from spreading through food.
