Most cases in adults include mild symptoms, similar to those of the flu. These cases can be safely managed from home. The most common symptoms of COVID-19 are fever (a temperature over 100.4℉ or 38.0℃), followed by cough and shortness of breath. These symptoms can be accompanied by body aches, fatigue, nausea, and congestion.
At least 80% of cases are mild and similar to the flu. Children seem to have even milder symptoms and tolerate the illness better than adults.
For more information, see: CDC: Symptoms of Coronavirus