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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.
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.
Cat genetics describes the study of inheritance as it occurs in domestic cats. In feline husbandry it can predict established traits ( phenotypes ) of the offspring of particular crosses. In medical genetics , cat models are occasionally used to discover the function of homologous human disease genes.
If lymphoma develops in the kidney, the cat may have increased water consumption and increased urination. Lymphoma of the kidney presents as bilateral kidney enlargement and failure. If the lymphoma is located in the nose, the cat may have discharge from the nose and facial swelling.
The double stranded DNA is highly stable and easily integrated into a host genome. A few examples of the virus are Moloney murine leukemia virus, xenotropic MuLB-related virus, feline leukemia virus, and feline sarcoma virus. [6] [7] [8] Gammaretroviruses are very popular retroviral vectors in laboratory studies.
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.