Summary of Clinical Management of Feline Leukemia Virus. Testing recommendations. Test before vaccination against FeLV. Test all sick cats, regardless of age and previous test status.
PDF | Practical relevance Feline leukaemia virus (FeLV) is a retrovirus of domestic cats worldwide.FeLV shedders, which pose an infection risk to FeLV-naive cats, can be detected by. testing for FeLV p27 antigen in blood or by testing for viral RNA in saliva using RT-PCR.

Feline Immunodeficiency Virus (FIV) and Feline Leukemia Virus (FeLV) are feline-only retroviruses that cannot be transmitted to humans or other animals.

Diagnosing Feline Leukemia Virus. Your veterinarian can diagnose the disease by conducting a simple blood test called an ELISA, which identifies FeLV proteins in the blood. This test is highly sensitive and can identify cats with very early infections.
GUIDELINE for Feline Leukaemia Virus Infection.