[1] Unidad Sanidad Anim, Saragoza, Spain
[2] Natl Reference Ctr Epidemiol, Ist Zooprofilattico Abruzzo & Molise G Caporale, OIE Reference Lab Brucellosis, Maisons Alfort, France
[3] Fed Inst Risk Assessment, Sci Serv, Berlin, Germany
[4] Vet Res Directorate, Dept Enviroment Food & Rural Affairs, London, England
[5] Agence Francaise Secur Sanitaire Aliments, Study & Res Lab Anim Pathol & Zoonoses, Maisons Alfort, France
[6] Ctr Invest Interdisciplinar Sanidade Anim, Fac Med Vet, Lisbon, Portugal
[7] European Food Safety Autor, Sci Cooperat & Assistance, Parma, Italy
[8] European Food Safety Autor, Anim Hlth & Anim Welf Unit, Parma, Italy
[9] Swedish Univ Agr Sci, Dept Anim Environm & Hlth, Skara, Sweden
[10] Wageningen Univ & Res Ctr, Anim Sci Grp, Lelystad, Netherlands
[11] Univ Cambridge, Dept Clin Vet Med, Cambridge, England
[12] Fdn Parco Biomed San Raffaele, Rome, Italy
[13] Campus Univ Autonoma BCN, Ctr Res Anim Hlth, Barcelona, Spain
[14] INRA, Poultry Res Unit, Nouzilly, France
[15] Univ Vet Med Hanover, Inst Anim Hyg Anim Welf & Behaviour Farm Animals, Hannover, Germany
[16] Marine Lab, Aquaculture & Aquat Anim Hlth Fisheries Res Serv, Aberdeen, Scotland
[17] Danish Inst Food & Vet Res, Copenhagen, Denmark
[18] VAR CODA CERVA, Brussels, Belgium
[19] Univ Birmingham, Biomed Serv Unit, Birmingham, W Midlands, England
[20] Fed Inst Risk Assessment, Berlin, Germany
[21] Erasmus MC, Dept Virol, Rotterdam, Netherlands
[22] Univ London, Royal Vet Coll, London, England
[23] Colorado State Univ, Coll Vet Med & Biomed Sci, Anim Populat Hlth Inst, Ft Collins, CO 80523 USA
[24] Vet Sch Maisons Alfort, Maisons Alfort, France
[25] Vet Labs Agcy, Dept Pathol, Penicuik, Midlothian, Scotland
[26] AFSSA, Poultry & Swine Res Lab, Ploufragan, France
[27] Swedish Univ Agr Sci, Dept Biomed Sci & Vet Publ Hlth, Uppsala, Sweden
[28] Vet Labs Agcy, Ctr Epidemiol & Risk Anal, Weybridge, Surrey, England