The Minnesota Department of Health is focusing its investigation into an E. coli O157:H7 outbreak on a Nebraska meat packer, according to a story from the Minneapolis Star-Tribune.

Although the beef was ground by a local grocery store, the source of the E. coli contamination probably came from the meat processing plant in Nebraska.

The store that sold the E. coli-contaminated meat receives meat from an Albert Lea distributor that gets its supply from four different meat processors. The processors operate at least eight different slaughterhouses.

The Albert Lea distributor does not have records on the source of the meat that it shipped to the Longville grocery store.