Feline leukemia virus is a retrovirus that infects cats. FeLV can be transmitted from infected cats when the transfer of saliva or nasal secretions is involved.
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.
PDF | Practical relevance Feline leukaemia virus (FeLV) is a retrovirus of domestic cats worldwide.Feline leukaemia virus (FeLV) can be a challenging infection to diagnose due to a complex feline host-pathogen relationship and occasionally unreliable test results.

Such details provide a deeper understanding and appreciation for Feline Leukemia Lab Results.
Results of polymerase chain reaction of feline leukaemia virus on ethidium-bromide stained gel. Expected size 495 bp.Table 2. Feline leukaemia virus test results and clinical diagnosis of 16 clinical case cats (36 through 51).
WebMD explains feline leukemia virus (FeLV), including symptoms, risk factors, treatments, and prevention.A second blood test, the IFA, detects the progressive phase of the infection, and cats with positive results for this test are unlikely to clear the virus.

Feline leukemia virus is a well-known retrovirus of cats, yet our understanding of this infection continues to evolve. As a retrovirus, FeLV uses its reverse transcriptase enzyme to create a DNA copy of its RNA viral genome.