Oldest ever schistosomiasis egg found may be first proof of early human technology exacerbating disease burden

Chalcolithic burial at Zeidan.

Credit: Gil Stein, Oriental Institute, University of Chicago

The discovery of a schistosomiasis parasite egg in a 6200-year-old grave at a prehistoric town by the Euphrates river in Syria may be the first evidence that agricultural irrigation systems in the Middle East contributed to disease burden, according to new Correspondence published in The Lancet Infectious Diseases.

Schistosomiasis is a disease caused by several species of flatworm parasites that live in the blood vessels of the bladder and intestines. Infection can result in anemia, kidney failure, and bladder cancer. This research shows it may have been spread by the introduction of crop irrigation in ancient Mesopotamia, the region along the Tigris-Euphrates river system that covers parts of modern-day Iraq, Iran, Kuwait, Syria, and Turkey.

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