USDA and Texas Officials Respond to New World Screwworm Detection in Texas Calf
The U.S. Department of Agriculture (USDA) has confirmed the detection of New World screwworm in a calf in Zavala County, Texas, marking the first U.S. case in decades. This parasite, known for infesting and consuming the living tissue of warm-blooded animals, poses a significant threat to livestock. In response, the USDA has established a unified incident command with the Texas Animal Health Commission, implementing a 20-kilometer quarantine zone around the detection site. Measures include movement restrictions, enhanced surveillance, and the release of sterile screwworm flies to control the population. The USDA emphasizes that the U.S. food supply remains safe, as the parasite does not infest meat or other food products.