David Hass, communications manager with the DuPage County Health Department, said the investigation is still ongoing and encouraged diners who ate at the Lombard Subway between Feb. 24 and March 1 to contact the health department by calling 630-682-7400 .
¡°It takes longer than people usually expect,¡± Hass said. ¡°We are also trying to locate people that ate there and remained healthy.¡± Barsellati said she
hadn't reported her
case, but intended to do so.
said that the health department has not yet determined the cause of the outbreak.
According to the Illinois Department of Public Health
, about 18,000 lab-confirmed cases a year on average are reported in the United States, including 1,300 in Illinois.
Symptoms of shigella food poisoning include diarrhea, vomiting, fever and stomach cramps and usually appear one to two days after exposure.
Symptoms last from five to seven days and may become severe in young children and the elderly.
The illness is spread either person-to-person or through contaminated food.
Those affected may also not exhibit symptoms but still are contagious.
According to Hass
, several lawsuits have been filed but he
declined to comment further.
commended Subway for its ¡°very good cooperation¡± by closing its doors, but said ¡°most of the time restaurants close when they are contacted by the health department.¡±