Affiliation: | 1.The Pirbright Institute, Ash Road, Pirbright GU24 0NF, UK; (E.L.A.H.); (J.F.);2.OptiGene Limited, Blatchford Road, Horsham RH13 5QR, UK; (D.C.); (N.H.);3.National Center for Foreign Animal Disease, Canadian Food Inspection Agency, 1015 Arlington Street, Winnipeg, MB R3G 1Y5, Canada;4.Internatonal Livestock Research Institute, Nairobi P.O. Box 30709, Kenya; |