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Feline leukemia virus (FeLV) is a retrovirus that infects cats.FeLV can be transmitted from infected cats when the transfer of saliva or nasal secretions is involved. If not defeated by the animal's immune system, the virus weakens the cat's immune system, which can lead to diseases which can be lethal.
While the causes of cancer in cats are unknown, feline leukemia virus is suspected to be a prime contributor. [2] Other factors suspected to increase rates of feline cancer include toxins from the environment, passive smoking, excessive grooming, or licking parts of the body that have been in contact with an environmental toxin. [2]
Feline diseases are often opportunistic and tend to be more serious in cats that already have concurrent sicknesses. Some of these can be treated and the animal can have a complete recovery. Others, like viral diseases, are more difficult to treat and cannot be treated with antibiotics, which are not effective against viruses.
A vaccine-associated sarcoma (VAS) or feline injection-site sarcoma (FISS) is a type of malignant tumor found in cats (and, often, dogs and ferrets) which has been linked to certain vaccines. VAS has become a concern for veterinarians and cat owners alike and has resulted in changes in recommended vaccine protocols.
Lymphoma is the most common malignancy diagnosed in cats. [22] Lymphoma in young cats occurs most frequently following infection with feline leukemia virus (FeLV) or to a lesser degree feline immunodeficiency virus (FIV). These cats tend to have involvement of lymph nodes, spine, or mediastinum.
Acute monocytic leukemia (AMoL, or AML-M5) [2] is a type of acute myeloid leukemia. In AML-M5 >80% of the leukemic cells are of monocytic lineage. [3] This cancer is characterized by a dominance of monocytes in the bone marrow. There is an overproduction of monocytes that the body does not need in the periphery.
As previously mentioned, the data showed that Burmese cats have the longest life expectancy. However, birmins were a close second with 14.39 years, and crossbred cats came third with 11.89 years.
Feline herpesvirus 1 (FHV-1), a viral cause of feline viral rhinotracheitis, a respiratory infection of cats. Feline calicivirus (FCV), a common viral cause of respiratory infection in cats. Feline parvovirus, which causes feline panleukopenia (FPV), more commonly known as feline distemper. Feline leukemia virus (FeLV), a retrovirus.