title: General discussion on the papers of session II. Developments with Marek's disease.
mesh_terms: D000818:Animals; D002645:Chickens; D005856:Germ-Free Life; D006564:Herpesviridae / Q000276:immunology / Q000472:pathogenicity; D006801:Humans; D008380:Marek Disease / Q000209:etiology / Q000276:immunology / Q000517:prevention & control; D014611:Vaccination / Q000662:veterinary; D014765:Viral Vaccines
chemical_list: D014765:Viral Vaccines