State and federal officials are ramping up emergency response efforts across South Texas following the detection of New World screwworm cases, a development that threatens the state’s livestock industry and has prompted a coordinated containment campaign.
The U.S. Department of Agriculture confirmed the presence of the flesh-eating parasite in Texas earlier this month, marking the first known U.S. cases in decades. The discovery has triggered an aggressive response from federal and state agencies seeking to prevent the pest from spreading into major cattle-producing regions.
The USDA has deployed additional personnel to affected areas, increased surveillance and trapping operations, and expanded the release of sterile male screwworm flies, a long-standing method used to disrupt the insect’s reproductive cycle. Veterinary supplies and treatment resources have also been positioned throughout South Texas as officials work to contain the outbreak.
Texas Gov. Greg Abbott has expanded the state’s disaster declaration and activated emergency management resources to assist with containment efforts. State agencies, veterinary experts and agricultural partners have been directed to support monitoring and response operations in vulnerable regions.
“The goal is to stop the spread before it reaches broader portions of Texas cattle country,” officials said during recent briefings on the outbreak.
South Texas has become the focal point of response efforts because of its proximity to Mexico, where officials have been tracking the northward movement of the parasite. The screwworm, which infests open wounds in warm-blooded animals, poses a significant threat to cattle, wildlife, pets and, in rare cases, humans.
The parasite’s larvae feed on living tissue, causing severe injuries that can become fatal if left untreated. The United States successfully eradicated New World screwworm in the 1960s through a massive sterile-fly release program, making the recent detections particularly concerning for agricultural officials.
Ranchers across South Texas are closely monitoring the situation as authorities implement quarantine zones and livestock movement restrictions designed to slow the parasite’s spread. The measures could affect cattle transportation and trade throughout the region.
Texas leads the nation in cattle production, and agricultural groups warn that a widespread infestation could have significant economic consequences. State officials have estimated that an uncontrolled outbreak could result in billions of dollars in losses to the livestock industry while disrupting beef markets and trade.
The outbreak has also prompted increased coordination between local governments, state agencies and federal officials as they work to monitor new detections and educate livestock owners about prevention and treatment measures.
Officials are encouraging ranchers and veterinarians to immediately report suspicious wounds or infestations in livestock as response teams continue surveillance efforts across South Texas.
The situation remains fluid as authorities work to determine the extent of the outbreak and prevent the parasite from gaining a foothold in the nation’s largest cattle-producing state.