Feline Leukemia Virus
About 30-40% of cats have a partially effective immune response following exposure to the virus and develop a regressive infection. In these infections, the virus is incorporated into the cat's genome, but the immune system prevents prolonged viral replication, so there are no viral particles present in the cat's blood after the initial ...
Summary. Cats represent an unusually valuable model for studying the role of the immune response to leukemia , lymphoma, and other mesodermal neoplasms. The agents that cause spontaneous feline leukemias , lymphomas, and fibrosarcomas, the feline leukemia and sarcoma viruses, are well characterized. A specific tumor cell membrane antigen, designated the feline oncornavirus-associated cell ...
Immune Response to Leukemia Virus and Tumor
Abstract Cats represent an unusually valuable model for studying the role of the immune response to leukemia , lymphoma, and other mesodermal neoplasms.

Cats represent an unusually valuable model for studying the role of the immune response to leukemia , lymphoma, and other mesodermal neoplasms. The agents that cause spontaneous feline leukemias , lymphomas, and fibrosarcomas, the feline leukemia and sarcoma viruses, are well characterized. A specific …
Measuring the Humoral Immune Response in Cats Exposed to Feline ...
Feline leukaemia virus (FeLV) is a gammaretrovirus that infects domestic and wild cats , causing immunodeficiency, cytopenia and neoplasia in progressively infected cats . The outcome of FeLV infection is influenced by the host immune response ; progressively infected cats demonstrate weaker immune responses compared to regressively infected cats .
Feline Leukemia Virus Disease

Feline leukemia virus (FeLV) is one of the most common infectious causes of disease of cats globally. Infection with FeLV can cause a variety of clinical signs, impacting a cat's longevity and quality of life. Vaccination and identification of infected cats is important in preventing disease transmission.
What is feline leukemia virus (FeLV)? Feline leukemia virus (FeLV) is a virus that infects cats . It was first identified in cats that had a form of leukemia (cancer of the white blood cells), but it is now known to cause a range of serious health problems. FeLV depresses the immune system, making infected cats more prone to infections, anemia, and certain cancers. Like all viruses, FeLV can ...
Feline Leukemia Virus Brochure
Feline leukemia virus adversely affects the cat's body in many ways. It is the most common cause of cancer in cats , it may cause various blood disorders, and it may lead to a state of immune deficiency that hinders the cat's ability to protect itself against other infections.
The cat undergoes progressive infection if the immune system fails to control the virus. If the cat can raise a strong immune response , it will undergo regressive infection, or even - the best case - abortive infection.