1. The Centers for Disease Control and Prevention (CDC) updated the symptoms of the deadly disease Covid-19. 2. The three new signs added by the CDC are nausea, congestion or runny nose, and diarrhea. 3. Apart from them, the list mentions fever or chills, cough, shortness of breath or difficulty breathing, fatigue, muscle or body aches, headache, loss of taste or smell, and sore throat. 4. The agency says any of these symptoms could appear 2-14 days after being infected by the coronavirus.