New World Screwworm Confirmed in Andrews County Dog

ANDREWS, TX — Andrews Veterinary Clinic is working with state and federal animal health officials after a dog was diagnosed with New World Screwworm, the parasitic infestation confirmed by U.S. Department of Agriculture testing. 

The dog was seen at the clinic June 6. Its owners are not from Andrews County and may have recently traveled from Mexico, officials reported. The animal has been treated and is recovering well. 

Veterinarians are urging pet owners to watch for wounds that worsen instead of heal, foul-smelling or draining wounds, visible maggots, and excessive licking, biting or irritation around injured areas. 

Livestock producers are encouraged to closely monitor newborn animals and inspect umbilical sites, branding wounds, ear tag holes, castration sites and other fresh injuries for signs of infestation. 

The case comes as state and federal officials continue efforts to prevent the northward spread of New World Screwworm. Animal owners are advised to carefully consider non-essential travel with pets or livestock into areas along the Texas-Mexico border and to stay informed about current movement requirements. Import and export regulations for animals have become more restrictive in response to concerns about the parasite’s spread. 

Anyone who suspects a New World Screwworm infestation is urged to contact a veterinarian immediately. 

On June 7, the USDA announced another case in Texas involving a calf in La Salle County with an umbilical lesion, according to the Texas Animal Health Commission. 

The TAHC maintains an interactive map tracking New World Screwworm cases.