surveillance for high pathogenicity avian influenza virus in wild birds in the pacific flyway of the united states, 2006-2007. | in 2006 the u.s. department of agriculture, u.s. department of interior, and cooperating state fish and wildlife agencies began surveillance for high-pathogenicity avian influenza (hpai) h5n1 virus in wild birds in the pacific flyway of the united states. this surveillance effort was highly integrated in california, oregon, washington, idaho, nevada, arizona, utah, and western montana, with collection of samples coordinated with state agencies. sampling focused on live wild birds, hunter-killed ... | 2009 | 19630228 |