Case report: mixed infections with subgroups A and B avian leukosis viruses in commercial white leghorn chickens.
D000740:Anemia / Q000276:immunology / Q000662:veterinary*; D000818:Animals; D001353:Avian Leukosis / Q000276:immunology*; D002645:Chickens / Q000276:immunology*; D010243:Paralysis / Q000276:immunology / Q000662:veterinary*