In this Tuesday, May 2, 2017 photo, Amira Hassan,of Burnsville, Minn., plays in the waiting room at the specialty clinic at Children's Minnesota in Minneapolis, while her dad, Mohamud Hassan, fills out paperwork. The girl went to the hospital's clinic for a routine wellness check, but she and her father both had to wear a mask to protect them from measles after an outbreak has sickened more than 30 children in Minnesota. The masks are just one precaution that hospitals are taking to try to control the spread of the disease, which is predominantly affecting Minnesota's Somali community.