The Feline Leukaemia Virus (FeLV) is a retrovirus which can cause cancer. It is transmitted through saliva contact with an infected cat. Kittens up to 16 weeks of age are particularly at risk. Also susceptible to the feline leukaemia virus are cats older than 16 weeks that are suffering from illness, injury or stress.
Diseases caused by the leukaemia virus are:

  • Panleukopenia-like diseases

  • Lymphosarcoma

  • Thymus atrophy

  • Myelogenous leukaemia

  • Non-regenerative anaemia

The Feline Leukaemia Virus is excreted through the plasma, whole blood and serum of an infected cat. In addition, it cannot be completely ruled out that transmission can also occur through contact with urine or faeces. The basic prerequisite for transmission is extensive contact with an infected cat. Deactivation of the virus can occur quickly through dehydration or heat.