title: Field trials with an attenuated Marek's disease vaccine.
mesh_terms: D000818:Animals; D001353:Avian Leukosis / Q000276:immunology / Q000401:mortality / Q000517:prevention & control*; D002645:Chickens; D003048:Coccidiosis / Q000401:mortality / Q000517:prevention & control / Q000662:veterinary; D010523:Peripheral Nervous System Diseases / Q000276:immunology / Q000401:mortality / Q000517:prevention & control / Q000662:veterinary; D011201:Poultry Diseases / Q000276:immunology / Q000401:mortality / Q000517:prevention & control*; D014611:Vaccination; D014765:Viral Vaccines
chemical_list: D014765:Viral Vaccines