title: Presence of natural haemagglutinins to sheep erythrocytes in sera from chickens free from Marek's disease.
mesh_terms: D000818:Animals; D000906:Antibodies / Q000032:analysis*; D001353:Avian Leukosis / Q000276:immunology*; D002645:Chickens / Q000276:immunology*; D004912:Erythrocytes / Q000276:immunology*; D009500:Neutralization Tests; D010523:Peripheral Nervous System Diseases / Q000276:immunology; D011201:Poultry Diseases / Q000276:immunology; D012756:Sheep
chemical_list: D000906:Antibodies