Cargill Inc. said this weekend it is recalling about 844,812 pounds of frozen beef patties due to possible E. coli contamination after investigators found four cases of illness linked to a division of Wal-Mart.
Sam's Club pulled frozen hamburgers made by Cargill from its store shelves over the weekend after Minnesota health officials discovered four cases of E. coli associated with the burgers.
Cargill said the hamburgers were manufactured at its plant in Butler, Wisconsin.
All four cases of E. coli being investigated occurred in children, the Minnesota Department of Health said in a statement.