title: Importance of the bursa of fabricius in resistance to disease. 1. Resistance to certain virus diseases.
mesh_terms: D000818:Animals; D002060:Bursa of Fabricius / Q000276:immunology* / Q000601:surgery; D009521:Newcastle Disease / Q000276:immunology / Q000662:veterinary*; D011201:Poultry Diseases / Q000276:immunology*; D011213:Poxviridae Infections / Q000276:immunology / Q000662:veterinary*