title: Studies on acute Marek's disease. 2. The role of coccidia in transmission and induction.
mesh_terms: D000818:Animals; D016782:Apicomplexa; D001353:Avian Leukosis / Q000209:etiology*; D002645:Chickens; D003048:Coccidiosis / Q000150:complications*; D004199:Disease Vectors; D011201:Poultry Diseases