The June 4, 2026, issue of U. S. Equestrian News reports that, on June 3, 2026, the U.S. Department of Agriculture confirmed the presence of New World Screwworm in the umbilical area of a calf in Zavala County, Texas. We urge readers to review that story for important information regarding the threat posed by this parasite and steps that horse owners should take to protect their animals.
