06/05/2026
🚨 NEW WORLD SCREWWORM DETECTED IN TEXAS 🚨
Livestock producers should be aware of the recent detection of New World Screwworm (NWS) in south Texas and remain vigilant for signs of infection in their animals.
🐄 What is New World Screwworm?
New World Screwworm is a parasitic fly whose larvae (maggots) feed on living tissue. Unlike common fly strike, screwworm larvae invade healthy tissue, causing severe wounds, pain, secondary infections, and potentially death if left untreated.
🔍 Signs to Watch For:
• Wounds that fail to heal or worsen rapidly
• Deep, foul-smelling wounds with visible maggots
• Excessive licking, tail switching, or irritation around a wound
• Swelling and drainage from wounds
• Depression, decreased appetite, or weight loss
• Infestations around navels of newborn calves, branding sites, dehorning wounds, castration sites, ear tags, or other skin injuries
⚠️ Any animal with a wound is potentially at risk. A vaccine injection site is a big enough wound for NWS flies to lay eggs into. Daily monitoring of cattle with recent procedures or injuries is strongly recommended.
📞 What Should You Do If You Suspect Screwworm?
Do NOT move the animal off the premises unless directed by animal health officials.
Contact your local veterinarian immediately.
Keep the animal isolated and monitor other animals for similar signs.
Follow veterinary recommendations for wound treatment and fly control.
Early detection is critical to preventing the spread of this serious livestock pest. If you notice unusual wounds or maggot infestations, please contact our clinic right away for assistance and advice!
