Outbreak of H7N8 Low Pathogenic Avian Influenza in Commercial Turkeys with Spontaneous Mutation to Highly Pathogenic Avian Influenza.
Highly pathogenic avian influenza (HPAI) subtype H7N8 was detected in commercial turkeys in January 2016. Control zone surveillance discovered a progenitor low pathogenic avian influenza (LPAI) virus in surrounding turkey flocks. Data analysis supports a single LPAI virus introduction followed by spontaneous mutation to HPAI on a single premises.
National Veterinary Services Laboratories, Veterinary Services, U.S. Department of Agriculture (USDA), Ames, Iowa, USA.
Mary Lea
ML
Killian
National Veterinary Services Laboratories, Veterinary Services, U.S. Department of Agriculture (USDA), Ames, Iowa, USA mia.kim.torchetti@aphis.usda.gov.
Mia
M
Kim-Torchetti
National Veterinary Services Laboratories, Veterinary Services, U.S. Department of Agriculture (USDA), Ames, Iowa, USA.
Nichole
N
Hines
Animal Disease Diagnostic Laboratory, Purdue University, West Lafayette, Indiana, USA.
Sam
S
Yingst
USDA Wildlife Services National Wildlife Research Center, Fort Collins, Colorado, USA.
Thomas
T
DeLiberto
USDA Agriculture Research Service, Southeast Poultry Research Laboratory, Athens, Georgia, USA.
Dong-Hun
DH
Lee