They have completely revised this website since the last time I took a look at it a month or so ago. (Apparently the CDC is gearing up for vaccinations!) Lots more info there, including the answers to a couple of my questions. . . folks who have (or who have EVER had) eczema are at risk for generalized vaccinia and are at risk if household members are vaccinated.
Normally, I would ignore something like this as "media hype", but there is something serious about the threat of Smallpox.
As you have observed, the CDC is taking this very seriously.
This is a good thing!