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Evolution and Antigenic Advancement of N2 Neuraminidase of Swine Influenza A Viruses Circulating in the United States following Two Separate Introductions from Human Seasonal Viruses |
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| Authors: | Bryan S. Kaplan Tavis K. Anderson Jennifer Chang Jefferson Santos Daniel Perez Nicola Lewis Amy L. Vincent |
| Affiliation: | a Virus and Prion Research Unit, National Animal Disease Center, USDA-ARS, Ames, Iowa, USA ; b Department of Population Health, College of Veterinary Medicine, University of Georgia, Athens, Georgia, USA ; c Department of Pathobiology and Population Sciences, The Royal Veterinary College, University of London, London, Hertfordshire, UK |
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