Summary
The U.S. Department of Agriculture has confirmed the first domestic detection of the flesh-eating New World screwworm parasite in wildlife, following an infestation found in a harvested elk in Pecos County, Texas. This alarming discovery is accompanied by a separate infestation in a domestic beef cow in Otero County, New Mexico. The New World screwworm, known for burrowing into open wounds and feeding on living tissue, poses a significant threat to livestock and wildlife.
In response to the findings, the New Mexico Department of Agriculture has established a mandatory isolation perimeter around the affected area, requiring health inspections and preventive treatments for livestock. Meanwhile, Texas authorities are expanding surveillance efforts and deploying specialized traps to assess the extent of the infestation. Federal teams are also preparing to release sterile male flies as a biological control measure to disrupt the breeding cycle of the parasite.
While public health officials assert that the risk to humans remains very low, agricultural economists warn that the unchecked spread of the parasite could disrupt national beef supply chains, potentially leading to increased prices and economic challenges for ranchers in affected regions. The parasite's resurgence in the U.S. is particularly concerning, as it had been eradicated from domestic populations decades ago.