INDIANAPOLIS — A person diagnosed with measles may have exposed others at Indianapolis' Super Bowl Village to the disease, according to Indiana health officials, who say they're not yet concerned about a widespread outbreak.

Two cases of measles have been confirmed in Hamilton County, with another two suspected in Boone County. One of the confirmed patients visited the outdoor Super Bowl Village on Friday afternoon. More than 200,000 people visited the Super Bowl Village that day, two days before the New York Giants beat the New England Patriots in the Super Bowl.

The Indiana State Department of Health said it notified the U.S. Centers for Disease Control and health departments in New York and Massachusetts, but it could be a week before new cases of measles pop up from that exposure.

Health officials noted the person did not go into the NFL Experience interactive fan exhibit at the Indiana Convention Center.

The person was infected by an undiagnosed sibling, according to the agency, which declined to provide additional information about the person.

Measles symptoms start with a progressively worsening cold and fever and end with a blotchy full-body rash. Serious complications can include meningitis and pneumonia. Greg Larkin, the Indiana state health commissioner, said symptoms typically don't appear for at least a week after coming in contact with the virus.

Larkin said the risk for a widespread outbreak is low. School-age children are generally required to receive two rounds of the measles vaccine.

"We've got high percentages and great rates of childhood immunization," Larkin said. Also, people born before 1957 are considered naturally immune because they were likely exposed to the virus during childhood.

Larkin said anyone who notices symptoms should contact a doctor.

"Even if you don't have symptoms, it's a reminder to make sure all your immunizations are up to date," he said. "And, it's a reminder to wash your hands and stay home from work if you're feeling sick."