Taste of Chicago, an outdoor festival featuring signature dishes from over 60 restaurants happens this weekend. In 2007, over 800 salmonellosis cases were linked to hummus from Pars Cove, one of the participating vendors.

After that outbreak, organizers stepped up their food safety game:

While any Chicago-based restaurant can apply to sell food at Taste of Chicago, the Chicago Department of Cultural Affairs and Special Events, the Chicago Department of Public Health and the Illinois Restaurant Association consider restaurant applicants’ inspection history for the previous three years before allowing them to participate in Taste. No applicants with unresolved critical or serious violations at their business are accepted or allowed to serve food at Taste of Chicago.

Additionally, all menu items are carefully reviewed and approved by the Chicago Department of Public Health with the festival’s outside environment and temperature in mind.

Carbón Live Mexican Grill, has been linked to at least 25 pathogenic E. coli illnesses including 5 hospitalizations and will not participate in Taste of Chicago, according to Chicago Eater.

CBS Chicago spoke to a one of the hospitalized patients who told the station the she ate steak tacos.

The restaurant has a second location in West Town, which ABC Chicago reported has also been closed as a safety precaution.