The company, headquartered in the Chicago suburb of Abbott Park, said the recall affects all rectangular plastic tubs of powdered Similac and some 8-ounce, 12.4-ounce and 12.9-ounce cans manufactured in one area of a plant in Sturgis, Mich., and distributed in the United States, Guam, Puerto Rico and the Caribbean. Abbott does business in more than 130 countries.