Feline leukemia virus (FeLV) is one of the most common and important infectious diseases in cats, affecting between 2-3% of all cats in the United States and Canada. Infection rates are significantly higher (up to 30%) in cats that are ill or otherwise at high risk (see below).
Feline Leukemia tests use blood samples to look for protein antigens to the virus present in the cat. A veterinary technician uses a special test kit that requires a blood or saliva sample. If the kit changes color, it is a sign that antigens are present in the cats blood.

For cats used as a blood donors or for breeding, screening with FeLV Quant RealPCR Test and FeLV Antigen by ELISA is recommended. Why does infection status matter? Classifying a cats FeLV infection status helps to align diagnostic findings with the course of the disease.

As we can see from the illustration, Cat Leukemia Screening Test has many fascinating aspects to explore.
The most common test used to screen cats for feline leukemia is the ELISA (enzyme-linked immunosorbent assay) test. This test can be done in your veterinarian's office and the results are usually ready in about 15 minutes.

When it comes to treating feline leukemia, some veterinarians have opposing opinions. Here's what you need to know about common treatments, and discussing all available options for you and your cat with your vet.How to Treat Feline Leukemia Tests and Medications for Cat Leukemia.
Test cats 30 days after most recent risk of exposure. Test cats considered at risk with an unknown infection status: Regularly test cats that are spending time free-range outdoors.
If you decide to adopt or purchase a new cat that is either FeLV-infected or has not been tested. If you foster (temporarily care for) any cat whose status of FeLV infection is unknown. Can Cats with Feline Leukemia Live with Other Cats? Group of cats sitting on a windowsill.