Three new cases of NWS confirmed in Texas
Three additional cases of New World screwworm have been confirmed in Texas, bringing the total number of United States cases to 15 as state and federal officials continue efforts to contain the parasite.
The U.S. Department of Agriculture announced June 21 the latest cases were detected in a lamb in Crockett County and two calves in Edwards County. The animals tested positive through ongoing surveillance efforts aimed at identifying infestations early and limiting the pest’s spread.
The NWS is a parasitic fly whose larvae feed on the living tissue of warm-blooded animals. The pest can infest cattle, sheep, goats, deer, pets, and wildlife. In rare cases, people also can be affected.
According to USDA, the latest detections occurred nearly three weeks after the first domestic NWS infestation in six decades was identified in a Texas calf.
The larvae burrow into living tissue, causing severe wounds that can become fatal if left untreated. Infestations can result in significant economic losses for livestock producers and pose risks to wildlife populations.
USDA said early detection and rapid treatment remain critical to controlling the parasite. The agency is continuing eradication efforts in affected areas, including the release of tens of millions of sterile male flies. The sterile insect technique is designed to prevent reproduction and reduce screwworm populations over time.
Texas livestock producers have been monitoring the situation closely as NWS moved north through Mexico during the past year. USDA said it will continue monitoring for additional cases across Texas and other southern states while maintaining aggressive containment and eradication efforts.
Lacey Vilhauer can be reached at 620-227-1871 or [email protected].
