Likely began in China.
Then on to Thailand's deplorable wet markets and crossed over from animals to humans.
Australia is now dealing with trying to stave off the invasion of the virus.
I've been to Chatuchak market a few times in the past, the treatment of often rare animals is quite appalling. It should be forced to stop live animal sales.
A good website for all to bookmark. There is helpful info here and there are updates most every day.
https://www.cdc.gov/coronavirus/2019-ncov/index.html