Eggs from ancient poopy “toilet paper” prove parasites also traveled the Silk Road.

It has long been suspected that ancient trade routes facilitated the exchange of parasites as well as more savory goods, particularly along the famous “Silk Road” that connected Europe to East Asia. Here, scientists set out to test this idea by probing “personal hygiene sticks” (cloth-wrapped bum-scrapers) for parasite eggs. The sticks were unearthed at a relay station along the Silk Road in northwestern China and date from ~100 BC. And boy were they loaded with useful “data”: the scientists

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