About 50 students from a suburban high school became ill with stomach flu-like symptoms after their Friday night prom at the Shedd Aquarium.
Officials at Andrew High School in Tinley Park, Ill., are asking parents of students who became ill, from what may be norovirus, to contact the dean’s office to provide more information.
School officials want to know what food the students ate and what other activities took place over the weekend. They also want to know when they first began to see symptoms.