/ New World screwworm Content for 51³Ô¹ÏºÚÁÏ Davis en /health/news/media-experts-new-world-screwworm <p>The U.S Department of Agriculture has&nbsp;<a href="https://www.aphis.usda.gov/news/agency-announcements/animal-health-officials-respond-second-detection-new-world-screwworm">confirmed</a> a second case of New World screwworm in Zavala County, Texas in a one-month old calf, 5.6 miles away from the first <a href="https://www.aphis.usda.gov/news/agency-announcements/usda-confirms-presence-new-world-screwworm-united-states">confirmed</a> case. New World screwworm is a serious parasitic fly that can affect livestock, pets, wildlife, and less commonly, people and birds.</p> June 05, 2026 - 10:44am Amy M Quinton /health/news/media-experts-new-world-screwworm