The Emergence of H7N7 Highly Pathogenic Avian Influenza Virus from Low Pathogenicity Avian Influenza Virus Using an in ovo Embryo Culture Model - Seekings, AH; Howard, WA; Nunez, A; Slomka, MJ; Banyard, AC; Hicks, D; Ellis, RJ; Nunez-Garcia, J; Hartgroves, LC; Barclay, WS; Banks, J; Brown, IH (VIRUSES-BASEL, 2020)