It's not only the EU.
This ban relates to a version of the flu that is chicken-to-chicken in these states as opposed to a chicken-to-human strain.
BBC TV report this morning, but seen nothing on CNN yet (though I could well have missed something).
Seemingly, a mild version of the chicken flu has been found in three US states and some 800,000 live chickens are imported (or were!) into the EU.
I guess lots of links will arrive pretty quickly on the web.