I don't think this is the best attitude to have towards the situation. You've had a scare and yea if I were you, based on what appears to be some inexperience and anxiety over your healthy animals, I would maybe forego "rescuing" or fostering anything for awhile. At least until you feel really certain that you have a fail-proof quarantine process in place. Like many others have said, I don't think you have a lot to worry about with your BP.
I don't say any of that to be mean or to put you off from helping at-risk animals, and if you're interested in doing that more often I encourage you to do a lot of research and set yourself up so you can do it safetly. Safe for you and your pets.