Feline Leukaemia Virus (FeLV) infection in cats

Feline Leukaemia
Introduction
Feline leukaemia (FELV) is a disease of cats caused by a virus called a retrovirus. It is called a retrovirus because of the method it uses to replicate inside the cat. It is the same type of virus as the human immunodeficiency virus and although there are a lot of disease similarities, several studies have shown that the disease is not transmissible to humans. FeLV is one of the most dangerous diseases that affect cats and is a major cause of death in cats. Fortunately the prevalence of the disease has decreased in recent years due to the use of vaccines against the disease and the ability of vets to diagnose the disease early and accurately.
Cat Aids

Feline Immuno Deficiency Virus
How does Feline Immunodeficiency Virus (FIV) compare to Human Immunodeficiency virus (HIV)?
Feline immunodeficiency Virus (FIV) has similar building blocks and is related to Human Immunodeficiency Virus (HIV), but very importantly, it cannot be passed between cats and humans. The virus can also not be transmitted from cats to dogs. Both FIV and HIV viruses share a similar pattern of disease progression. Both viruses are classified as Lentivirus, which means they have a long period of showing very few clinical signs during which time the immune system deteriorates. Eventually Acquired Immunodeficiency Syndrome (AIDS) develops and this is accompanied by opportunistic infections, systemic disease and cancer. The close relationship between FIV and HIV has meant that FIV has been used as an animal study model to better understand HIV in humans.




