New World screwworm (NWS) larvae cause severe, often fatal damage by burrowing into the flesh of livestock, pets, wildlife, birds, and even humans. Photo courtesy USDA APHIS The U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) has provided additional details about its investigation into a recently reported New World screwworm (NWS) case, clarifying that the affected dog resides in Lea County, New Mexico, rather than Texas. As a result, the case, initially reported by a veterinarian in Andrews County, Tex., is being reclassified as the first detected NWS case in New Mexico. According to APHIS, the case is believed to be isolated. However, because the dog’s recent travel and exposure history remain unknown, federal and state officials have expanded surveillance efforts while continuing to investigate the animal’s movement history. Actions underway include inspections and sampling of other animals in the household, fly trapping, and outreach to encourage reporting of additional suspect cases. “ This situation is evolving, and we expect new information to emerge as our investigation continues. USDA is committed to sharing what we learn quickly, accurately, and transparently so animal owners and local communities have the information they need to stay vigilant,” says Dudley Hoskins, Under Secretary for Marketing and Regulatory Programs. “We are working closely with our partners in New Mexico, Texas, and across the region to ensure we identify, contain, and respond to any potential cases as swiftly as possible.” New World screwworm larvae feed on living tissue and can cause severe wounds, significant animal suffering, and economic losses in livestock and companion animals. The NWS larva can burrow into and feed on living tissue, causing painful injuryand potentially fatal consequences. Photo by the U.S. Department of Agriculture (USDA) In a separate development, USDA’s National Veterinary Services Laboratories confirmed a case in a goat in Gillespie County, Tex. APHIS and state officials are conducting surveillance, testing, and outreach while gathering additional information about the case. Veterinarians are encouraged to remain alert for suspicious wounds, maggots, or lesions and report suspected infestations promptly.
