FeLV is a retrovirus that suppresses the immune system, predisposing cats to infections, anemia, and lymphoma (cancer). It is a leading infectious cause of death in cats.
This condition requires veterinary attention.
If your animal shows the Key or Common signs listed, please visit a clinic immediately.
Report Case / Get HelpThe "Friendly Cat" virus. Transmitted via prolonged close contact: grooming, sharing bowls, and mating. Also from mother to kitten.
After exposure, some cats clear the virus. Others become persistently infected. Clinical signs may not appear for years but eventually include weight loss, poor coat, and recurrent infections.
ELISA SNAP test is the standard screening tool. IFA or PCR confirmation is recommended for positive results to distinguish active infection from exposure.
There is no cure for the virus itself. Treatment is supportive: antibiotics for secondary infections, blood transfusions for anemia, and chemotherapy for lymphoma.
Vaccination is highly recommended for all kittens and outdoor cats. Keeping cats indoors prevents exposure.
Variable. Persistently infected cats typically live 2-3 years after diagnosis. "Regressive" cats may live normal lives but harbor the virus DNA.
Medical DisclaimerThis information is for education only and does not replace examination, diagnosis, or treatment by a qualified veterinarian.