Which animal is more susceptible to feline leukemia virus (FeLV)?

Feline leukemia virus (FeLV) primarily affects cats, making them the species most susceptible to this viral infection. FeLV is a retrovirus that can impair the immune system of infected cats and is usually transmitted through saliva, urine, or close social interactions such as grooming and fighting. Unlike dogs, rabbits, or ferrets, cats specifically have a unique biological susceptibility to this virus, which can lead to various health problems, including anemia, lymphoma, and immune system dysfunction.

The other animals listed—dogs, rabbits, and ferrets—are not natural hosts for FeLV and do not typically get infected with this virus. While they might experience other health issues or infections, they are not at risk for FeLV in the same way that cats are, which underscores the importance of vaccination and monitoring in feline populations to manage this disease effectively.