Reported illnesses have ranged from mild symptoms to severe illness and death for confirmed coronavirus disease 2019 (COVID-19) cases.

The following symptoms may appear 2 to 14 days after exposure*: 

• Fever
• Cough
• Shortness of breath

*This is based on what has been seen previously as the incubation period of Middle East Respiratory Syndrome (MERS)-CoV viruses.

If persons develop emergency warning signs for COVID-19, they should get medical attention immediately. Emergency warning signs include*:

• Difficulty breathing or shortness of breath
• Persistent pain or pressure in the chest
• New confusion or inability to arouse
• Bluish lips or face

*This list is not all inclusive. People should consult their medical provider for any other symptoms that are severe or concerning. If people think they have been exposed to COVID-19 and develop a fever and symptoms, such as cough or difficulty breathing, they should call their healthcare provider for medical advice. Source: CDC.