U.S. health officials say at least 19 people in Minnesota have been sickened by E. coli poisoning tied to a national recall of more than 167,000 pounds of potentially tainted ground beef. Detroit-based Wolverine Packing Co. recalled the meat this week after Minnesota state agriculture officials reported multiple illnesses and found that a sample of the product tested positive for E. coli O157:H7, which can cause life-threatening infections. Symptoms of E. coli poisoning include fever, vomiting, diarrhea and signs of dehydration.