The Kane County Health Department reported six new salmonella cases last month and is continuing an aggressive, ongoing investigation to track the illness, officials said.

"The health department is asking people displaying the symptoms, which include headaches, muscle aches, diarrhea, vomiting, rumblings in the bowels, chills, fever, nausea and dehydration, to see their doctors," said Claire Dobbins, the department’s director of preparedness and communicable disease control. "An increase in case reports will assist the health department in locating the cause of infection."

Salmonellosis often is mistaken for the stomach flu, since symptoms mimics the flu, officials said. The systems last from 24 hours to 12 days and appear six to 72 hours after ingestion. Those most susceptible include children younger than 1 year, people who have had ulcer surgery or who take antacids, and those whose immune systems have been weakened by other ailments.