Date of this Version
Emerging Infectious Diseases • www.cdc.gov/eid • Vol. 23, No. 2, February 2017.
We report reoccurrence of highly pathogenic avian influenza A(H5N2) virus clade 22.214.171.124 in a wild mallard in Alaska, USA, in August 2016. Identification of this virus in a migratory species confirms low-frequency persistence in North America and the potential for re-dissemination of the virus during the 2016 fall migration.