I’m very sorry to hear about your loss. The fact that you’re expressing concern for a potential future rabbit really shows how caring you must have been when she was with you, and I’m sure she really appreciated and loved that.

My understanding is coccidia is really facilitated, maintained, and thriving in rabbit feces. Outside of a rabbit’s body/fecal environment, the parasite shouldn’t be able to live long, I would think…. that’s the main fact to be checked. Moist areas are always more likely to harbor and allow bacteria/parasites to thrive, so places that were rarely in contact with your rabbit and are generally dry are likely not risky and don’t need to be addressed. I think cleaning the areas/items that you know definitely have high chance of fecal residue, like litter boxes, water bowls, favorite rugs/spots where she may have eaten her cecotropes… these are places that should be attended to. Outside of that, I don’t think it’s necessary.

Again, that’s my initial, un-educated thoughts. Definitely curious about other’s thoughts and experiences.

The oocysts can persist in the soil for a long time. As for indoors and on hard/dry surfaces, I don’t think they survive very long because the conditions are not ideal for that. From what I’ve read, they die off in a matter of days. I think Wick is correct. Clean everything thoroughly just to be on the safe side, but it should be OK.