Feline immunodeficiency virus (FIV) and feline leukemia virus (FeLV) can cause a range of illnesses and even death in infected cats. These viruses infect only cats, not humans or other animals.

Feline immunodeficiency virus is most commonly found in unneutered male cats and in cats that fight with other cats. It is less common in kittens and in neutered adult cats. The virus is spread through saliva and is usually transmitted to other cats through bite wounds.

Feline leukaemia virus infection is most commonly spread among cats that live together. It can also be transmitted from mother to kitten and among cats that fight. The virus is mainly spread through saliva when cats groom each other and when food and water bowls are shared.

Some cats develop an active infection, which can lead to problems such as low red blood cell counts (anemia) or cancer. These problems can be severe and even fatal.

Your cat can be tested for FIV or FeLV infections. There are many times in your cat’s life when your veterinarian may recommend testing. Whenever your cat is ill, it should be tested for FIV and FeLV infections. If your cat goes outdoors or fights with other cats, your veterinarian might suggest regular testing. If your cat is new to the family or you adopt another cat, testing is recommended before introducing the new cat to the others in the household.

If your cat tests positive for FIV or FeLV, your veterinarian may recommend further testing. Even if your cat’s initial test result is negative, your veterinarian might still suggest repeating the test in the future.

There are no treatments available for either virus that can eliminate the infection. Infected cats should visit their veterinarian regularly to help them maintain good health and live as long as possible. Your veterinarian will recommend blood testing, vaccinations, and parasite prevention. High-quality commercial diets are recommended; raw food diets may lead to serious infections.

Any conscientious and ethical breeder who does their due diligence will be able to provide proof that their cattery is negative by showing the parents’ test results for your kitten.