We are told not to call home unless a fever or vomiting is evident, but a student in my class was just flown out because of low oxygen levels and elevated white blood cell counts. He complained of his chest hurting on Friday, but no one answered when I sneaked a call to his mother on my cell. As a teacher, what do I need to be looking for as far as symptoms with the raging virus that is sweeping the nation?
Elevated WBC can tell you about bacterial infection, low oxygen can cause respiratory syn Chat Doctor.  Take care, you are a good teacher