My Sister used to work at the VA in surgical intensive care, and she was always apprised of these sorts of things. Emergency drills... notifications of what bizarre diseases to be alert for (symptoms, etc.)... notifications of "suggested" vaccinations, etc.
Unfortunately, she stopped working there a year ago, so I don't hear about this stuff now.
See, that is the odd thing. We are in a target area, my husband AND his colleagues have never received any notifications, procedurial changes, nada. He is on call to 2 separate hospitals and one of them is a State.