Dear of troy: I have read that bat urine can have rabies virus in it, and since it is in the saliva, I would expect it to be in feces. I have read about spelunkers (cave enthusiasts) getting rabies presumably from contact with bat droppings. I can't see any justification for making cosmetics from loathesome materials. New England was free of rabies fifty years ago, and so was Canada. But occasional bats were found to be rabid, and it spread to animals that lived in same caves, presumably. The biggest threat now is from racoons, who can be carriers without any symptoms. I also read of a corneal transplant patient dying of rabies. The donor was said to have been a forest ranger, who died of rabies which was not diagnosed until after the corneal transplant patient died.
I saw a bunch of URL's about bat guano and rabies virus, but none were suitable for including here.
