History of fecal transplantation; camel feces contains limited amounts of Bacillus subtilis spores and likely has no traditional role in the treatment of dysentery.

Because we could not find evidence for the use of camel feces in the treatment of diarrhea and because we show that only low amounts of Bacillus subtilis spores are present in camel feces, we conclude that the use of camel feces should no longer be mentioned in the context of origins of fecal transplantation.