I set up spare cage(s) on the porch before going to buy a rabbit, or if I notice a sick one. The porch is a high traffic area, so walking by the rabbit several times a day not only ensures you will notice if something is "off", but it gets the rabbit familiarized with you quicker...I feed the quarantined one(s) last, and always keep a bottle of hand sanitizer near the cage(s) so that I kill any germs before touching my door handle. I also keep a separate feed and water pail on the porch so I don't bring any possible sickness near my herd's feed bin. Happy quarantining!