Ruminant alphaherpesviruses related to bovine herpesvirus 1 Julien Thiry, Véronique Keuser, Benoît Muylkens, François Meurens, Sacha Gogev, Alain Vanderplasschen and Etienne Thiry Vet. Res., 37 2 (2006) 169-190 Published online: 14 February 2006 DOI: 10.1051/vetres:2005052