Everyone in a New Jersey family became ill with E. coli O157:H7 after eating barbequed hamburgers that they had made from ground beef purchased from Karl Ehmer Meats. A boy and a girl in the family had severe diarrhea. The boy's symptoms worsened, and he required hospitalization. He suffered severe complications from his infection, and these led to his death a few days after his hosptial admission. Leftover hamburger patties recovered from the family’s residence showed the presence of of a strain of E. coli O157:H7 that matched the strain isolated from the boy’s stool. The ground beef purchased by the family was shoulder clod that had been supplied to Karl Ehmer by IBP.