Characterization of five isolates of Marek's disease.
D000818:Animals; D001353:Avian Leukosis / Q000276:immunology / Q000473:pathology*; D001354:Avian Leukosis Virus / Q000472:pathogenicity; D001715:Bird Diseases / Q000473:pathology*; D002645:Chickens; D005260:Female; D008297:Male; D011201:Poultry Diseases / Q000473:pathology*; D012737:Sex Factors