WASHINGTON — The 1.8 million lbs. of ground beef manufactured by Wolverine Packing Co., Detroit, may have been distributed nationwide, according to the US Department of Agriculture’s Food Safety and Inspection Service (FSIS). The FSIS initially said the recalled product was distributed to four states: Massachusetts, Michigan, Missouri and Ohio.

But in an update posted on the FSIS’s website, the agency said “upon further investigation, FSIS now believes the product was sent to distribution centers nationwide.”

The full list of the products subject to the recall may be viewed by clicking here:Wolverine Packing recall list. Products included in the recall were manufactured between March 31 and April 18, and distributed for use by food service operators.

The FSIS was notified ofE. coliO157:H7 illnesses on May 12. Working in conjunction with the Centers for Disease Control and Prevention, FSIS officials determined that there was a link between the ground beef products from Wolverine Packing Co. and the illness cluster. Based on epidemiological and trace-back investigations, 11 case-patients have been identified in four states with illness onset dates ranging from April 22 to May 2.