Coronavirus symptoms: what are they and should I see a doctor?

It is caused by a member of the coronavirus family that has never been encountered before. Like other coronaviruses, it has come from animals. Many of those initially infected either worked or frequently shopped in the Huanan seafood wholesale market in the centre of the Chinese city.

https://www.theguardian.com/world/2020/mar/08/coronavirus-symptoms-what-are-they-and-should-i-see-a-doctor