[neverdem]

"Does FDA approval limit their liability?"

I believe it does, although I'm doc not a lawyer. If it didn't, then I doubt the drug companies would make them. There are almost constant shortages of one or another vaccine. Making vaccines is not a very profitable enterprise. There are not too many drug companies that want to be bothered.

[Dan Evans]

Whatever limits they get from FDA approval, it isn't enough. That may be why it isn't worth it to make vaccines. I think I read that at one time in the recent past there was only one U.S. company still in the vaccine business.

http://overlawyered.com/archives/01/nov1.html#1107a