Screwworm Confirmed in the United States
On June 3, 2026, the U.S. Department of Agriculture confirmed New World Screwworm in the umbilical area of a calf in Zavala County, Texas. This expansion into the United States is alarming and US Equestrian wants to make sure you know about the potential risks of this parasitic fly to horses. Detailed information is available by using the following link: https://www.usef.org/compete/regulation/drugs-medications/new-world-screwworm Please also make yourself familiar with the rules established by your state authorities concerning the transportation of horses from affected areas.


