06/09/2026
๐๐๐ฐ ๐๐จ๐ซ๐ฅ๐ ๐๐๐ซ๐๐ฐ๐ฐ๐จ๐ซ๐ฆ - ๐๐ก๐๐ญ ๐๐จ๐ฎ ๐๐ก๐จ๐ฎ๐ฅ๐ ๐๐ง๐จ๐ฐ:
Fact: Most maggots feed on dead tissue. New World Screwworm larvae are differentโthey feed on healthy, living tissue, causing wounds to rapidly enlarge and worsen.
๐ช๐ต๐ ๐ฑ๐ฎ๐ป๐ด๐ฒ๐ฟ๐ผ๐๐: Rapid tissue destruction, severe pain, secondary bacterial infections, toxemia, and death possible within ~1 week if untreated. Infestations in eyes, ears, or deep tissues can be particularly severe/fatal.
๐๐ ๐ผ๐ณ ๐๐๐ป๐ฒ ๐ต, ๐ฎ๐ฌ๐ฎ๐ฒ, ๐ต๐ฒ๐ฟ๐ฒ'๐ ๐๐ต๐ฒ ๐๐ถ๐๐๐ฎ๐๐ถ๐ผ๐ป ๐ถ๐ป ๐ง๐ฒ๐
๐ฎ๐:
Texas has 4 confirmed New World Screwworm cases in 3 counties:
โข Zavala County โ calf (first U.S. case)
โข La Salle County โ calf
โข Gillespie County โ goat
Additional Texas case confirmed by USDA, bringing the Texas total to four. A previously reported Andrews County case was reclassified as a New Mexico case.
The U.S. total currently stands at 5 confirmed cases:
โข 3 calves
โข 1 goat
โข 1 dog (Lea County, New Mexico)
Texas currently has an established infested zone affecting portions of: La Salle County -Webb County-Uvalde County-Zavala County.
๐ช๐ฎ๐ฟ๐บ-๐ฏ๐น๐ผ๐ผ๐ฑ๐ฒ๐ฑ ๐ฎ๐ป๐ถ๐บ๐ฎ๐น๐ ๐บ๐ฎ๐ ๐ป๐ผ๐ ๐น๐ฒ๐ฎ๐๐ฒ ๐๐ต๐ฒ ๐ถ๐ป๐ณ๐ฒ๐๐๐ฒ๐ฑ ๐๐ผ๐ป๐ฒ ๐๐ถ๐๐ต๐ผ๐๐ ๐ฝ๐ฟ๐ถ๐ผ๐ฟ ๐ฎ๐๐๐ต๐ผ๐ฟ๐ถ๐๐ฎ๐๐ถ๐ผ๐ป ๐ณ๐ฟ๐ผ๐บ ๐๐ต๐ฒ ๐ง๐ฒ๐
๐ฎ๐ ๐๐ป๐ถ๐บ๐ฎ๐น ๐๐ฒ๐ฎ๐น๐๐ต ๐๐ผ๐บ๐บ๐ถ๐๐๐ถ๐ผ๐ป (๐ง๐๐๐).
The restrictions apply to: Horses-Cattle-Sheep-Goats-Dogs
Other warm-blooded animals; Certain animal products, hides, and carcasses from quarantined areas.
๐๐ป๐๐ฒ๐ฟ๐๐๐ฎ๐๐ฒ ๐ฎ๐ป๐ฑ ๐๐ป๐๐ฒ๐ฟ๐ป๐ฎ๐๐ถ๐ผ๐ป๐ฎ๐น ๐๐บ๐ฝ๐ฎ๐ฐ๐๐
โข All southern U.S. ports of entry are closed to livestock trade.
โข Livestock imports from Mexico remain restricted.
โข Mexico has closed livestock movements across the border.
โข Canada has imposed restrictions on livestockโincluding horsesโfrom Texas and on animals that have resided in or transited Texas within the previous 21 days.
๐๐ฎ๐ป ๐ถ๐ ๐ถ๐ป๐ณ๐ฒ๐ฐ๐ ๐ต๐๐บ๐ฎ๐ป๐? Yes. While uncommon, human cases occur. In 2025, the United States documented its first human case in decades in a traveler returning from Central America. Like animals, the larvae feed on living tissue and often require surgical removal.
Many veterinarians practicing today have never seen a case in person because the parasite was eradicated from the U.S. decades ago.
๐๐ ๐๐ต๐ถ๐ ๐๐ถ๐บ๐ฒ, ๐ป๐ผ ๐ฐ๐ฎ๐๐ฒ๐ ๐ต๐ฎ๐๐ฒ ๐ฏ๐ฒ๐ฒ๐ป ๐ฟ๐ฒ๐ฝ๐ผ๐ฟ๐๐ฒ๐ฑ ๐ถ๐ป ๐ก๐ผ๐ฟ๐๐ต ๐ง๐ฒ๐
๐ฎ๐. ๐๐๐ฎ๐ฟ๐ฒ๐ป๐ฒ๐๐, ๐๐ผ๐๐ป๐ฑ ๐บ๐ฎ๐ป๐ฎ๐ด๐ฒ๐บ๐ฒ๐ป๐, ๐ฎ๐ป๐ฑ ๐ฝ๐ฟ๐ผ๐บ๐ฝ๐ ๐๐ฒ๐๐ฒ๐ฟ๐ถ๐ป๐ฎ๐ฟ๐ ๐ฎ๐๐๐ฒ๐ป๐๐ถ๐ผ๐ป ๐ฟ๐ฒ๐บ๐ฎ๐ถ๐ป ๐ผ๐๐ฟ ๐ฏ๐ฒ๐๐ ๐๐ผ๐ผ๐น๐ ๐ณ๐ผ๐ฟ ๐ฝ๐ฟ๐ผ๐๐ฒ๐ฐ๐๐ถ๐ป๐ด ๐ต๐ผ๐ฟ๐๐ฒ๐, ๐น๐ถ๐๐ฒ๐๐๐ผ๐ฐ๐ธ, ๐ฝ๐ฒ๐๐, ๐ฎ๐ป๐ฑ ๐ฝ๐ฒ๐ผ๐ฝ๐น๐ฒ.
