What does the FeLV vaccine protect against?
The vaccine reduces the risk of infection with feline leukemia virus (FeLV), but protection is not complete. It is intended for cats that are not already infected and does not treat an existing infection. The feline combination vaccine is given separately and does not protect against FeLV. For transmission routes, see our guide to feline leukemia.
Why check before vaccination?
Guidelines recommend checking FeLV status before the first vaccination. Bring any previous test results and their dates. If your cat had a recent exposure, the veterinarian can assess how to interpret the result and whether further or repeat testing is appropriate.
What affects booster decisions?
Age and the possibility of contact with cats of unknown status affect risk. Tell the veterinarian whether your cat goes outdoors, will live with another cat or has recently joined your household. They will review the initial series, product used and current risk to decide whether and when a booster is appropriate.
Ask about the FeLV vaccine for cats at home and which records or test results to bring to the appointment.