For those worried about when you should suspect vs not, there is 3 different combinations that meet criteria to be a person under investigation (PUI) from the CDC, simplified:
1. Symptomatic (febrile, cough, SOB) AND recent contact with a CONFIRMED case of covid-19.
2. Symptomatic (febrile, cough, SOB) AND recent travel to SPECIFIC areas affected (China, Italy, etc).
3. SEVERELY symptomatic (hospitalization level fever, cough, SOB) and other things have been r/o (I.e. flu)
For those school nurses, if they're coming to you, they're obviously not #3. The first two are pretty specific. You can tell parents that their kids do not meet criteria to be a PUI.