From my other blog: Two articles on suicide chic in a hit TV chick flick series aimed at female teenyboopers..
and link to a CDC technical article on why they have a yellow fever vaccine shortage.
essentially only one company makes it, and they had to throw out a lot of vaccine because of technical difficulties. Now they want to manufacture a new version but they have to do extensive testing.
And I have written in the past about the YF outbreaks on Africa and now in Brazil, that has used up a lot of the world's stock of vaccine even though they give partial doses to some folks.