Cat Feline Immunodeficiency Virus: Living Well with FIV

FIV-positive cats can live long healthy lives with appropriate management, and welfare concerns around euthanasia of FIV-positive cats are a significant shelter issue.

Key Facts

Feline immunodeficiency virus (FIV) affects approximately 1-3% of cats in developed countries
FIV-positive cats can live normal lifespans without developing AIDS-like disease if managed appropriately
The virus is transmitted primarily through deep bite wounds making indoor-only cats at very low risk of transmission to companions
Many shelters historically euthanized FIV-positive cats, but this is now recognized as unwarranted given their excellent prognosis
Regular veterinary monitoring, prompt treatment of secondary infections, and good nutrition maintain excellent quality of life for FIV-positive cats

Welfare Considerations

FIV welfare concerns have evolved significantly as understanding of the virus has improved. The historical practice of euthanizing FIV-positive shelter cats has been largely replaced by appropriate management and adoption advocacy as welfare science showed these cats live normal healthy lives. FIV-positive cats kept indoors with compatible companions and receiving regular veterinary care show minimal disease progression in most cases. Shelter policies requiring euthanasia of FIV-positive cats cause unnecessary welfare harm and death for cats that would otherwise thrive.

What You Can Do

Consider adopting FIV-positive cats knowing they can live normal healthy lives with appropriate care
Advocate for shelter policies against automatic euthanasia of FIV-positive cats
Keep FIV-positive cats indoors to prevent transmission risk and protect their immune system from environmental pathogens
Provide regular veterinary monitoring for FIV-positive cats to catch and treat secondary infections promptly