Hush, hush.

It is understood that it is best to let the professionals do their job. But what if the professionals don't do their job, because they are preoccupied with saving their face?

If the corona virus was engineered at the University of North Carolina prior to December 21st, 2015, then there is a good chance that a vaccine against it has already been developed by now. However, if the fact isn't supposed to be admitted, it cannot openly be deployed until such time has passed as seems fit to convince the population to be adequate for the development of a vaccine.

Assuming that the vaccine would be a less lethal strain of the same virus family, it could of course still be administered covertly, but that might require cooperation and where in doubt that might leave millions of people unprotected, which would be a possible explanation for local differences in lethality, peaking in some control groups (e.g. Iranian government officials) at 15%.

While it appears obvious that the virus won't be contained, I wonder whether obfuscation is the best policy in this case. Where questions of the deployment of bioweapons are concerned, paranoia could easily get out of hand. I'd wager it'd be best to make a clean breast of things, and if not of all things, then of the more things the better.