title: Field trials of vaccines for Marek's disease.
mesh_terms: D000818:Animals; D001353:Avian Leukosis / Q000517:prevention & control*; D001431:Bacteriological Techniques; D005069:Evaluation Studies as Topic; D006564:Herpesviridae / Q000276:immunology* / Q000302:isolation & purification; D010523:Peripheral Nervous System Diseases / Q000517:prevention & control / Q000662:veterinary; D011201:Poultry Diseases / Q000517:prevention & control*; D014422:Turkeys; D014765:Viral Vaccines / Q000592:standards*
chemical_list: D014765:Viral Vaccines