I'm certainly up for being safer than sorry, but I would have to save up for that. I'd likely call my vet for her opinion on whether it's worth it in this situation.
For ruling out amoeba in live animals, do you have any estimate on how much that costs? I would very much be interested in looking into that! I've actually not heard of it before, I would like to know more if you've ever got the time to educate me a little or could even just point me in the right direction of a good article!