More than 100 people became ill after eating a Thanksgiving meal. The Cedar Falls, Hy-Vee grocery store prepared the foods that were served at the Thanksgiving dinner the Cedar Heights Presbyterian Church. Some of these meals were delivered to private homes by church volunteers. The investigation revealed that the turkey had not been cooked adequately. The turkey contained a high number of Clostridium perfringens. There was evidence that the turkey was highly contaminated. Media coverage of the outbreak at the church prompted reporting of a similar outbreak among employees of the local Ryder Truck Company. Seventeen persons became ill after eating the turkey dinner prepared by the same Hy-Vee grocery store.