APEX (WTVD) -- According to officials at Apex High School, one student has contracted whooping cough or Pertussis.
Officials confirmed the case Monday afternoon and notified parents shortly after.
In a letter to parents, assistant principal Jeannette Hill said the school was working with the county health department to identify any students who may have been exposed.
Read the letter to parents from Wake County Human Services
Officials said all students are required to be vaccinated for whooping cough before the start of the school year.
Doctors said babies, children, and teens are most at risk, adding that apnea and vomiting can occur.
School officials are telling parents to monitor their children's health and take them to a doctor if they see those symptoms.
More information about Pertussis can we found on the CDC's website.