[1] Int Livestock Res Inst, Nairobi 00100, Kenya
[2] Royal Vet Coll, Vet Epidemiol & Publ Hlth Grp, Hatfield AL9 7TA, Herts, England
[3] World Org Anim Hlth, F-75017 Paris, France
[4] Food & Agr Org United Nations, I-00153 Rome, Italy
[5] African Union Interafrican Bur Anim Resources, Nairobi 00100, Kenya
[6] Vet Borders Vet Sans Frontieres Canada, Victoria, BC V8W 3R9, Canada
[7] African Field Epidemiol Network, Kampala, Uganda
[8] Vet Borders Vet Sans Frontieres Belgium, Nairobi 00100, Kenya
[9] US Ctr Dis Control & Prevent, Atlanta, GA 30333 USA