If the initial release of this bioweapon was accidental, a logical military and political response by China would have been a global spread so that China alone did not suffer the results. That explains the Chinese restrictions on internal....but not international...travel.
RE: a logical military and political response by China would have been a global spread so that China alone did not suffer the results.
But China DID suffer the results. Wuhan had tens of thousands, perhaps hundreds of thousand ( unreported ) of deaths.