title: Studies in genetic resistance to RSV (RAV-O). A third type of genetic resistance typified by the W line of fowl and further support for the two loci genetic model.
mesh_terms: D000818:Animals; D001358:Avian Sarcoma Viruses; D002642:Chick Embryo; D002645:Chickens; D003433:Crosses, Genetic / Q000662:veterinary; D005260:Female; D005838:Genotype; D007109:Immunity; D008297:Male; D010641:Phenotype