U.S. officials have finished investigating the cause of a previously unannounced multi-state foodborne illness outbreak. The likely source of the outbreak behind the infections is Escherichia coli O157:H7. 

The U.S. Department of Agriculture provided the name of the pathogen and the suspected source, but no other details. The outbreak is listed as non-active, but the posting does not list any outcomes. 

Consumers who have eaten ground beef and developed E. coli symptoms should seek medical attention, and let their doctor know about the possible bacteria exposure. The infections can mimic other illnesses, and specific tests are required to diagnose the infection. 

E. coli symptoms can vary, but usually include severe stomach cramps and diarrhea, which can also be bloody. Some patients may also have a fever. Most people recover within five to seven days, but others can develop severe or life-threatening symptoms and complications, according to the U.S. Centers for Disease Control and Prevention.