I have said more than a few times. This seems like a hell of a bio weapon and I am very curious if that was the intention.
It would be a lousy bioweapon.
It requires ~15 minutes of close contact to transmit, has maybe a 1% fatality rate, serious cases a few percent above that. There are a lot of cases, but thus far not so many that they have overwhelmed medical services to any particular degree. And so on.
Worse, it only spreads with direct inhalation from a living source; you can't dust a letter with it or anything.
Viruses basically are the worst bioweapons; bacteria and fungi are far better, since there are hardy versions and produce toxins - some the world's deadliest toxins are bacterial and fungal. There are no viral toxins.
The best candidate for a viral bioweapon would be Ebola - no need to create a new, much weaker virus - but there are no weaponized versions of Ebola because
it's a virus, and viruses suck as bioweapons.
DH