06/05/2026
New World Screwworm has been identified in the US after a calf in Texas was found to be positive. This can affect other animals such as horses, dogs, and others. Please use these links to find up to date and fact-based information about the current situation in Texas.
Please reference the following resources for additional information regarding New World Screwworm (NWS):
1. Equine Disease Communication Center Factsheet: https://equinediseasecc.org/handler/managedfilehandler.ashx?id=103&ext=pdf
2. USDA Map of Current Outbreak: https://www.aphis.usda.gov/animals/animal-health/livestock-and-poultry-disease/current-status?page=1
3. USDA Myth Buster Sheet:https://www.aphis.usda.gov/sites/default/files/nws-myth-busters.pdf
4. USDA New World Screwworm Webinar for Animal Industry: https://youtu.be/0ZdBU0mBXKE?si=Vi7_Aqe8V-3Jy72X
5. AAEP Alert to Equine Practitioners: New World Screwworm Enters the United States:https://aaep.org/wp-content/uploads/2026/06/Alert-to-Equine-Practitioners-FINAL.pdf