Thu, 08/15/2024 - 14:15 Gizmodo Researchers have detected the first case of Thelazia callipaeda infection in a Pennsylvania black bear—a troubling sign that the worm has established a foothold in North America. Tags health, bears, eyeworms, infectious diseases, parasites Source A Parasitic Eyeworm Is Spreading in the U.S.—and Bears Are the Latest Victims