CP7_E2alf oral vaccination confers partial protection against early classical swine fever virus challenge and interferes with pathogeny-related cytokine responses., Renson, Patricia, Le Dimna Mireille, Keranflech André, Cariolet Roland, Koenen F., and Le Potier Marie-Frédérique , Vet Res, 2013 Feb 11, Volume 44, p.9, (2013)