19.04.2015

Based on the World Organization for Animal Health (OIE) reporting criteria for avian influenza in commercial poultry, between 1997 and 2014, the United States experienced one incident of highly pathogenic avian influenza (HPAI) in poultry. From December 2014 till now there have been 50 confirmed outbreaks of H5N2/H5N8 HPAI.

37 cases were H5N2 in turkey commercial farms
1 case of H5N2 in a commercial chicken farm
9 cases of H5N2 in backyard poultry
1 case of H5N8 in a turkey commercial farm
1 case of H5N8 in a commercial chicken farm
1 cases of H5N8 in backyard poultry
A total of 2.67 million birds were affected. The outbreaks were reported from 14 different states. All the identified H5N2 viruses are East Asia / America lineage reassortments. The H5N8 viruses are East Asia lineage. To date, 51 wild birds have tested positive for H5N1, H5N2 or H5N8 infection.