Consumption of infant formula that had been produced in Spain, and distributed widely throughout Spain, was linked to an outbreak of Salmonella Kedougou. The infant formula came in a powdered form. Outbreaks associated with infant powdered formula occur because these products are not sterile. The infant formula brand had been produced until March, 2008. The outbreak was not detected until almost five months later. Adult cases that occurred during the outbreak were likely due to secondary transmission from infected infants who consumed the formula.