A little-known parasite is circulating in local wildlife. A parasite is spreading across the Puget Sound region, carried by coyotes and capable of causing a slow, devastating disease in both dogs and humans. It is circulating more widely than expected. A recent UW-led study found Echinococcus multilocularis—known as the fox tapeworm—in 37 of 100 coyotes tested around Puget Sound. The findings, published in PLOS Neglected Tropical Diseases, mark the first confirmed detection of the parasite in a.