I heard on the radio that New York had a small pox outbreak decades ago. A hospital discovered that a man died from it it. It turns out that he had returned the month before from overseas. He had a whole month to spread it around. The city enacted a program to make sure that people could get the necessary injections. The program went as smooth as clockwork. Only about a dozen people ever got sick. Only one other person died of it.
I think that this will be a lot like the Y2K problems. A lot of talk and hype, but very little actual damage.
When that occured they innoculated MILLIONS of people. They had a HUGE supply of vaccine. Not so, now.