For confirmed 2019-nCoV infections, reported illnesses have ranged from infected people with little to no symptoms to people being severely ill and dying. Symptoms can include:
Shortness of breath
CDC believes at this time that symptoms of 2019-nCoV may appear in as few as 2 days or as long as 14 after exposure. This is based on what has been seen previously as the incubation period of MERS viruses.
The latest situation summary updates are available on CDC’s web page 2019 Novel Coronavirus, Wuhan, China.