title: Experimental dual infections of chickens with infectious bursal and Marek's disease agents. I. Preliminary observation on the effect of infectious bursal agent on Marek's disease.
mesh_terms: D000818:Animals; D001353:Avian Leukosis / Q000150:complications* / Q000401:mortality; D002060:Bursa of Fabricius / Q000382:microbiology*; D002460:Cell Line; D002642:Chick Embryo; D002645:Chickens; D046508:Culture Techniques; D006566:Herpesviridae Infections / Q000150:complications / Q000662:veterinary*; D007668:Kidney; D010523:Peripheral Nervous System Diseases / Q000150:complications / Q000662:veterinary*; D011201:Poultry Diseases / Q000382:microbiology* / Q000401:mortality