Flu vs. COVID Symptoms: 9 Clues You Can’t Ignore (and When to Test ASAP)
Why flu vs. COVID still confuses people Both illnesses are contagious respiratory infections with broad, overlapping symptom sets. WHO summarizes it plainly: “In many cases COVID‑19 and influenza cause similar symptoms, including cough, runny nose, sore throat, fever, headache and fatigue.” World