The cyclospora outbreak has impacted consumer confidence. gettyAmerica’s Cyclospora outbreak is no longer just a food-safety story. The outbreak, linked to iceberg lettuce from central Mexico, has now reached 15 states, with Michigan alone reporting more than 12,000 cases and two deaths. MORE FOR YOU But not every Cyclospora infection being reported across the U.S. has been linked to iceberg lettuce. For Yum Brands, the owner of Taco Bell, the initial financial hit was sharp.