The source of the new coronavirus has not yet been clearly determined, but after genetic matching and sampling analysis, it was initially determined that the new coronavirus originated from markets selling seafood and wildlife, but the specific wildlife from which it came was not finally determined. And a study pointed out that the most likely is a mammal – Chinese chrysanthemum-headed bat, because according to genetic matching, this virus and the bat body SARS-like coronavirus homology of more than 85%. The novel coronavirus, when infecting humans, can be transmitted from person to person, mainly through respiratory droplets and close contact infection.