My cousin is going on a gap year and has asked me to have her cat for 9ish months as she obviously doesn’t want to give him up or stick him in a cattery for months. Logistically this is fine, I work part time, already have cats that tolerate other cats and have plenty of toys, cat towers, litter trays etc. Problem is that her cat has FIV and was rehomed on the understanding that he would be a single, indoor cat. My cats are mostly indoor but do not have FIV, I don’t want to expose them to FIV. Has anyone got experience of this, can I vaccinate my cats against FIV before agreeing to this?