The United States Department of Agricluture has updated its Web site, with a page on keeping foods safe at Super Bowl parties.  USDA’s Food Safety and Inspection Service issued a press release on the subject.  From the release:

Super Bowl Sunday is often recognized as the second biggest single day of food consumption in the United States after Thanksgiving. Like other holidays where food plays a prominent role, food safety should be a prime consideration to ensure that gatherings are healthy and happy events.

"Football, food and friends are great American traditions and the Super Bowl brings them together on one day," said USDA Under Secretary for Food Safety Dr. Richard A. Raymond. "Whenever you combine large amounts of food with a large gathering of people, there are some important items for the host and guests to remember."

Because Super Bowl parties can last for several hours, certain foods left at room temperature for too long enter the so called "Danger Zone," between 40°F and 140°F. Raymond noted that the "Danger Zone" is the perfect environment for harmful bacteria to grow and multiply.