Avian leukosis (AL) is caused by avian leukosis virus
(ALV) and supports the malignant proliferation in avian species (Payne et al., 1991; Payne and Nair, 2012).
Myeloid leukemia and transmission of the HPRS- 103 strain of avian leukosis virus
Rosales, a veterinary medical officer with Ross Breeders, Inc., of Elkmont, Alabama, says infections are now occurring in younger chickens and spreading faster than any other avian leukosis virus
(ALV) known before.
Isolation and characterization of emerging subgroup J avian leukosis virus
associated with hemangioma in egg-type chickens.
Molecular characteristics and pathogenicity of an avian leukosis virus
isolated from avian neurofibrosarcoma.
Examples of such contamination include simian virus in early polio vaccines grown on monkey kidney cells and avian leukosis virus
(ALV) in yellow fever vaccines propagated in chick embryos (1).
(11) The most common viruses associated with lymphoma in poultry are Marek's disease virus, avian leukosis virus
, and reticuloendotheliosis virus.
Lack of relationship between infection with avian leukosis virus
and the presence of COFAL antigen in chick embryos.
(7) They have been associated with implants (including transponders), local trauma, vaccine administration, radiation exposure, foreign bodies, chronic inflammation, parasitic infections (especially Spirocerca lupi in the domestic dog), and retroviral infections, such as retroendothelial virus and avian leukosis virus
Formalin-fixed paraffin-embedded neoplastic tissue as well as frozen liver and spleen were negative by polymerase chain reaction for avian leukosis virus
and reticuloendo-theliosis virus.
Tolerance and immunity in chickens after congenital and contact infection with an avian leukosis virus
(22-26) Avian leukosis virus
causes B-cell lymphomas mainly in gallinaceous poultry, and reticuloendotheliosis virus has been associated with either B- or T-cell lymphomas in gallinaceous birds, geese, and a European starling (Sturnus vulgaris).