Prevention and Control of Feline Leukemia Virus

Testing should be done in the following situations:

• All kittens at their first veterinary visit

• All cats prior to entering a household with existing uninfected cats

• All cats in an existing household prior to admission of a new, uninfected cat

• All cats prior to their first feline leukemia virus vaccination

The 2020 AAHA/AAFP Feline Vaccination Guidelines recommend vaccination against FeLV for cats younger than 1 year old as a core vaccine. For low-risk adult cats, it is considered a non-core vaccine.