Affiliation: | aExotic and Emerging Avian Viral Diseases Research Unit, Southeast Poultry Research Laboratory, U.S. National Poultry Research Center, Agricultural Research Service, U.S. Department of Agriculture, Athens, Georgia, USA;bDepartment of Population Health, University of Georgia, Poultry Diagnostic and Research Center, Athens, Georgia, USA;cDepartment of Pediatrics, School of Medicine, Emory University and Children''s Healthcare of Atlanta, Atlanta, Georgia, USA |