Lots of difference in the wording this "urged to destroy" as opposed to "instructed to destroy." This shouldn't be optional.
Sis, they cannot destory what they do not have! The titles are misleading!
Deadly strain of avian flu in Texas - April 1, 2004
... The H7N2 strain was found in two flocks in Delaware and four of the 35 live chicken markets
http://www.avma.org/onlnews/javma/apr04/040401c.asp
So is "Bird" Flu = H2N2 strain
Why not? It grew since last Ocotober and the CDC just holds a press conference today!