(NEXSTAR) – You’ve got the sore throat, runny nose and cough (or any of the other common COVID-19 symptoms right now), but when you swab your nose and take a test, it comes out negative.

You have the telltale signs of COVID — fever, headache, dry cough and exhaustion — but your rapid antigen test is returning a negative result. You're not alone. So, if you're testing ...