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Overview


Feline leukemia virus (FeLV) infection is responsible for more deaths among cats than any other infectious disease. The virus affects domestic cats and occurs in some wild felines as well.




Types of FeLV

There are three main types of feline leukemia virus: FeLV-A, FeLV-B, and FeLV-C. FeLV positive cats can be infected with one, two, or all three types:


FeLV-A occurs in all FeLV infected cats and causes severe immunosuppression (weakened immune system).

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