**#*Virus-ridden T cell destroy normal T cells, causing chronic immunosuppression
**#*Virus-ridden T cell destroy normal T cells, causing chronic immunosuppression
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==Signalment==
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FIV infection increases in prevalence in older cats, and is more often found in male cats compared to females. It is the older male cat that is free to roam outdoors that is most likely to be infected with FIV.