Robuta

https://www.frontiersin.org/journals/veterinary-science/articles/10.3389/fvets.2022.970818/full Frontiers | Isolation and characterization of avian leukosis virus subgroup J associated with... The first strain of avian leukosis virus subgroup J (ALV-J) emerged in 1987 as a new subgroup of avian leukosis and spread rapidly throughout the world. The ... avian leukosis virus https://www.wikidata.org/wiki/Q37146448 Component of strain MC29 avian leukosis virus with the property of defectiveness - Wikidata scientific article published on December 1971 avian leukosis virus https://www.wikidata.org/wiki/Q37871510 Inheritance and Expression of Chicken Genes That Are Related to Avian Leukosis Sarcoma Virus Genes... scientific article published on January 1, 1978 https://www.wikidata.org/wiki/Q45821599 Isolation of a non-focus-forming agent from strain MC29 avian leukosis virus - Wikidata scientific article published in July 1971