FeLV is most commonly spread via the saliva of infected cats, either directly or by contaminated articles such as food and water dishes or toys. FeLV can also be present in other secretions such as urine or feces, but this is less common. FeLV can be spread transplacentally from mother to offspring, but spread via nursing or grooming is more common. Airborne spread is not a concern. FeLV is not very durable in the environment. It is inactivated by most commonly used disinfectants. It can survive for up to 48 hours in a moist environment at room temperature.