Initially , authorities suspected a link to powdered infant formula . Tests so far have not found contamination in formula , Dr. Robert Tauxe says . Wal-Mart has pulled a brand of formula from its shelves . Score: 6
Initially , authorities suspected a link to powdered infant formula . Tests so far have not found contamination in formula , Dr. Robert Tauxe says . Wal-Mart has pulled a brand of formula from its shelves . Only four to six cases of this type of infection are reported per year .