Patients with confirmed 2019-nCoV infection have reportedly had mild to severe respiratory illness with symptoms of:
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 Centers for Disease Control and Prevention (CDC) is closely monitoring an outbreak of respiratory illness caused by a novel (new) coronavirus first identified in Wuhan, Hubei Province, China. Chinese authorities identified the new coronavirus, which has resulted in hundreds of confirmed cases in China, including cases outside Wuhan, with additional cases being identified in a growing number of countries internationally. The first case in the United States was announced on January 21, 2020. There are ongoing investigations to learn more