We hear it all the time about FIV: “FIV…that’s feline AIDS, right?” No.

Why not?

First of all, a positive test for FIV doesn’t even mean a cat DEFINITELY has FIV, let alone AIDS (acquired immunodeficiency syndrome). Remember that the current tests for FIV test for antibodies to FIV, which means that if a cat has previously been vaccinated for FIV, it will test positive on the current tests. There is no way to tell the difference between an infected cat and a vaccinated cat.

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