Overview of the Third International Workshop on Swine Leukocyte Differentiation Antigens K. Haverson a,* , A. Saalmu Èller b , B. Alvarez c , F. Alonso c , M. Bailey a , A.T.J. Bianchi d , W.J.A. Boersma d , Z. Chen e , W.C. Davis f , J. Dominguez c , H. Engelhardt g , A. Ezquerra c , L.S. Grosmaire h , M.J. Hamilton f , E. Hollemweguer e , C.A. Huang i , K.V. Khanna j , G. Kuebart b , G. Lackovic k , J.A. Ledbetter h , R. Lee l , D. Llanes m , J.K. Lunney n , K.C. McCullough o , T. Molitor j , J. Nielsen p , T.A. Niewold d , M.D. Pescovitz q , J. Perez de la Lastra m,1 , Z. Rehakova r , H. Salmon s , W.M. Schnitzlein t , J. Seebach i,2 , A. Simon i,3 , J. Sinkora r , M. Sinkora r , C.R. Stokes a , A. Summer®eld o , L. Sver k , E. Thacker u , I. Valpotic k , H. Yang v , F.A. Zuckermann t , R. Zwart d a Division of Molecular and Cellular Biology, University of Bristol, Langford BS40 5DU, UK b Federal Research Centre for Virus Diseases of Animals, P.O. Box 1149, 72001 Tu Èbingen, Germany c Departamento de Sanidad Animal, SGIT-INIA, Valdeolmos, 28130 Madrid, Spain d DLO, Institute for Animal Science and Health, NL-8200 AB Lelystad, The Netherlands e Pharmingen, 10975 Torreyana Road, San Diego, CA 92121, USA f Department of Veterinary Microbiology and Pathology, College of Veterinary Medicine, Pullman, WA 99164-7040, USA g Department of Animal and Poultry Science, University of Guelph, Guelph, Ont., Canada N1G 2W1 h Bristol-Myers Squibb, Seattle, WA 98121, USA i TBRC, Massachusetts General Hospital, Boston, MA 02129, USA j Large An. Clin. Sci., College of Veterinary Medicine, University of Minnesota, St. Paul, MN 55108, USA k Department of Biology, Veterinary Faculty, University of Zagreb, HR-10000 Zagreb, Croatia l Department of Parasitology, The University of Queensland, Queensland, Australia m Unidad Mixta Marcadores Gene Âticos Moleculares, Departamento de Gene Âtica, Facultad de Veterinaria, Co Ârdoba 14005, Spain Veterinary Immunology and Immunopathology 80 2001) 5±23 * Corresponding author. Tel.: 44-117-928-9289; fax: 44-044-928-9505. E-mail address: karin.haverson@bristol.ac.uk K. Haverson). 1 Present address: Department of Medical Biochemistry, College of Medicine, University of Wales,Tenovus Building, Cardiff CF4 4XN, UK. 2 Present address: Department of Internal Medicine, University Hospital Zu Èrich, CH-8091 Zu Èrich, Switzerland. 3 Present address: LEBAO, 30659 Hannover, Germany. 0165-2427/01/$ ± see front matter # 2001 Elsevier Science B.V. All rights reserved. PII:S0165-242701)00290-2