title: Weak support for disappearance and restricted emergence/persistence of highly pathogenic influenza A in North American waterfowl.
authors: Alaska Science Center, US Geological Survey, Anchorage, AK 99508; aramey@usgs.gov.
authors: Andrew M
authors: AM
authors: Ramey
authors: Southeast Poultry Research Laboratory, Agricultural Research Service, US Department of Agriculture, Athens, GA 30605.
authors: Erica
authors: E
authors: Spackman
authors: National Veterinary Services Laboratories, Veterinary Services, Animal and Plant Health Inspection Service, US Department of Agriculture, Ames, IA 50010.
authors: Mia
authors: M
authors: Kim-Torchetti
authors: National Wildlife Research Center, Wildlife Services, Animal and Plant Health Inspection Service, US Department of Agriculture, Fort Collins, CO 80521.
authors: Thomas J
authors: TJ
authors: DeLiberto
mesh_terms: D000818:Animals; D000835:Animals, Wild; D001717:Birds; D004372:Ducks; D006801:Humans; D009980:Influenza A virus; D005585:Influenza in Birds; D007251:Influenza, Human; D010802:Phylogeny; D014481:United States