Does China have a vaccine?
We know that the Chinese Government does not mind killing a few thousand or million if it has the impression they are not toeing the Party line or not showing sufficient respect for a member of it. Tanks squashed democracy advocates and Mao thinking he was being ignored resulted in millions dying.
So it could be the Chinese virus deaths are accurate.
What better way to demolish the economies of all other countries than to enact the current scenario?
That is produce a virus, and a vaccine for it, allow it to kill a few thousand of your citizens to make your account of its origin plausible, then inoculate the rest of your population and get them back to work.
Your economy has suffered a little and is safe from a return of the virus.
The rest of the world is completely stuffed.
It really upsets me that we are all going to have to use Chinese, a language that does not have an alphabet. The Koreans had the brains to realise that writing needs an alphabet and devised theirs over seven hundred years ago.