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Feline Immunodeficiency Virus (FIV) - Symptoms, Management & Life Expectancy

Learn about FIV in cats, its symptoms, diagnosis, and management. FIV-positive cats can live long, healthy lives.

Mar 10, 2026

What is Feline Immunodeficiency Virus (FIV)?

Feline Immunodeficiency Virus (FIV) weakens a cat's immune system, often called "cat AIDS." While infection leads to vulnerability to other diseases, FIV-positive cats can live healthy lives for years with proper care and medical support.

Feline Immunodeficiency Virus

Feline Immunodeficiency Virus

FIV Transmission

FIV spreads primarily through deep bite wounds. It's common in male outdoor cats that fight. Theoretical transmission through blood transfusion or from mother to kitten is possible, but casual contact doesn't spread it.

FIV Symptoms

  • Early: Fever, lethargy, anorexia, enlarged lymph nodes
  • Middle: Oral disease, dermatitis, chronic diarrhea
  • Late: Respiratory infections, neurological symptoms, opportunistic infections

Diagnosis & Management

FIV is diagnosed through blood tests (ELISA, Western blot). No specific cure exists; antiviral drugs and symptom management extend lifespan. Regular veterinary checkups and preventive care are essential.

Sources & References

  • Cornell Feline Health Center - Managing FIV-Infected Cats
  • American Veterinary Medical Association - Feline FIV

This information is for general guidance and may vary based on individual cat health. Always consult with your veterinarian for accurate diagnosis and treatment.

Sources & References

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