All the current evidence says that the virus that is causing the epidemic originated in China. But it got out of China through more than one route. This article summarizes the mutations the virus has accumulated on the way, which in turn tells us the paths through which given strains have passed. Extremely interesting if you're into this sort of thing. (I am.)
https://www.nytimes.com/interactive/2020/04/30/science/coronavirus-mutations.html
https://www.nytimes.com/interactive/2020/04/30/science/coronavirus-mutations.html