Last question first: No. Why? Because even today with all the death and suffering there are too many cretins who treat it as a hoax, and practice nothing that saves lives. Besides, Trump, KNEW WHAT IT WAS BUT HID IT.
Now, the origin. According to Chinese documents the cases started out in two other cities close to Wuhan, Chianing and Yitchang. Not at the Wuhan market, not at/from the research center close to it.
And let’s not forget that they had cases in September 19 in Italy, as was reported a couple of weeks ago.