Bird flu has been found in a pig for the first time in the U.S.
The discovery of an infected pig at a backyard farm in Oregon raises concerns about bird flu's potential to become a human threat.
(Image credit: Cynthia Goldsmith, Jackie Katz)
The discovery of an infected pig at a backyard farm in Oregon raises concerns about bird flu's potential to become a human threat.
(Image credit: Cynthia Goldsmith, Jackie Katz)