How Does COVID-19 Progress Day By Day

While most cases of the coronavirus are mild, about 20% of patients suffer severe symptoms or become critically ill.
Patients may experience symptoms at different rates and severity, but researchers agree COVID-19 follows a typical timeline.
Day 1: Most patients report fever, fatigue and a dry cough. Some people have reported diarrhea or nausea.
Day 5: Patients report shortness of breath or difficulty breathing, especially if they have a preexisting health condition.