[1] Ist Zooprofilatt Sperimentale Venezie, OIE FAO Reference Lab Avian Influenza & Newcastle, I-35020 Legnaro, PD, Italy
[2] Univ Kent Medway, Sch Pharm, Chatham ME4 4AG, Kent, England
[3] Anim Hlth Res Inst, Natl Lab Vet Qual Control Poultry Prod, Giza 12618, Egypt