Ars Technica
Woman's brain worm infection confirmed after eggs grow tails in lab test
Tuesday, September 22, 2026
A woman in the United States was confirmed to have a parasitic infection after laboratory analysis identified eggs with motile tails characteristic of Spirometra worms, according to medical reports. The patient's diagnosis came after stool samples tested positive for the parasite, which can be transmitted through consumption of raw or undercooked freshwater fish or contaminated water. Treatment typically involves antiparasitic medication, though severe infections may require additional intervention.
