Humane Canada supports a multi-faceted approach to dealing with feral cats, including: a TNVR (trap, spay / neuter, vaccinate and release) program, including, where appropriate, subsequent monitoring and the euthanasia of diseased animals whose health is deemed unrecoverable or whose illness
poses immediate jeopardy to other cats (specifically, felines that test positive for infectious FELEUK and FIV and / or who exhibit definitive behaviour consistent with rabies).