ESPN's "Outside the Lines" reviewed health department inspection reports at all 107 North American arenas and stadiums that are home to Major League Baseball, National Football League, National Hockey League and National Basketball Association.
At 30 of the venues, more than half of the concession stands or restaurants had been cited for at least one "critical" or "major" health violation. These violations pose a risk for food borne illnesses that can make someone sick or even prove fatal.
One of the most dangerous violations was food not being properly cooked, reheated or held at safe temperatures, because that allows the growth dangerous bacteria such as E. coli, salmonella, and staphylococcus aureus.
In addition, according to ESPN:
“In the past few years, Lucas Oil Stadium in Indianapolis and Angel Stadium in Anaheim were cited with dozens of critical violations for rodent infestations. The violations ended up on local TV stations and in newspapers. Lucas Oil Stadium faced $3,500 in fines, and the violations in Anaheim angered officials with the city, which owns the stadium.”