Cat FeLV FIV Management Welfare | Animal Welfare Hub

Managing cats with Feline Leukaemia Virus or Feline Immunodeficiency Virus requires thoughtful care to maximise quality of life, as both viruses compromise immune function with welfare implications.

Key Facts

FeLV is the more aggressive virus - progressive FeLV leads to bone marrow failure and secondary disease
FIV positive cats can live for years with excellent quality of life with appropriate management
FeLV vaccination is available and highly effective; no FIV vaccine is currently available in the UK
Both viruses are transmitted through cat-to-cat contact, making infected cat management important
Regular health monitoring detects secondary infections early when treatment is most effective

Welfare Considerations

FeLV and FIV positive cats deserve full welfare consideration throughout their lives. FIV positive cats particularly deserve recognition that they can enjoy good quality of life for many years with appropriate management - premature euthanasia based solely on positive test result deprives them of welfare-positive years. Regular monitoring for secondary infections, appropriate treatment, stress minimisation to reduce immune challenge, and indoor management to prevent transmission combine for optimal welfare.

What You Can Do

Test all new cats for FeLV and FIV before introducing them to existing cats
Seek specialist advice rather than immediate euthanasia following a positive FIV diagnosis
Maintain regular health monitoring for FeLV or FIV positive cats to detect secondary illness early
Support research into FeLV and FIV management and treatment options