A North Cross School student has been diagnosed with Pertussis. Pertussis is also known as whooping cough.

The student attends North Cross’ lower school.

North Cross School reported the case to the Roanoke City, Roanoke County, and Franklin County health departments.

“We are notifying each of our families, as well, in the event you notice any symptoms in your child,” North Cross School Headmaster Chris Proctor wrote in a letter sent home with students.

Click here to see the entire letter:

According to the Virginia Department of Health, pertussis can be serious for infants and young children, but it affects people of all ages. It is spread through the air by coughing and can be highly contagious.