Also, to add a possible answer to the final question above, on why would they cover it up? Well, if the Hubei provincial government covered the whole accidenta

Also, to add a possible answer to the final question above, on why would they cover it up? Well, if the Hubei provincial government covered the whole accidental release up, and if the Xi Jinping wasn't aware of it, I think he would probably want to keep that under wraps since it would make him look weak if it were to be revealed he wasn't even aware of the situation on the ground for multiple weeks.