Here, we report three detections of H7N1 low pathogenicity avian influenza viruses (LPAIV) from poultry in Missouri (n = 2) and Texas (n = 1) during February and March 2018. Complete genome sequencing and comparative phylogenetic analysis suggest that the H7 LPAIV precursor viruses were circulating in wild birds in North America during fall and winter of 2017 and spilled over into domestic poultry in Texas and Missouri independently during the spring of 2018.
H7N1 low pathogenicity avian influenza virus in poultry, United States, 2018
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Dong-hun Lee, Mary Lea Killian, Thomas J. Deliberto, Xiu-Feng Wan, Li Lei, David E. Swayne, Mia Kim Torchetti; H7N1 low pathogenicity avian influenza virus in poultry, United States, 2018. Avian Dis 2020; doi: https://doi.org/10.1637/aviandiseases-D-20-00088
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