That would confirm that it was a bio-weapon.
Yep.
And if we ever officially recognize that little factoid, that is tantamount to a declaration of war.
Not just any war, but by clearly stated and long standing US policy, a WMD is a WMD is a WMD.
That's a WMD (bio-weapon) attack and that justifies a WMD (thermonuclear) response.
I hope that we never cross that threshold. Trump is doing a magnificent job of asymmetric warfare to punish China on more levels than they ever imagined, and doing it with sufficient fineness to deny them a casus belli to start the shootin' war they so desperately crave.
There are maybe a dozen people on Earth who could pull that off, no others in US politics!
Vote wisely people!